Léon Koopmans

Search results

• 2023

  Assessing the impact of two independent direction-dependent calibration algorithms on the LOFAR 21-cm signal power spectrum: And applications to an observation of a field flanking the North Celestial Pole

  Gan, H., Mertens, F. G., Koopmans, L. V. E., Offringa, A. R., Mevius, M., Pandey, V. N., Brackenhoff, S. A., Ceccotti, E., Ciardi, B., Gehlot, B. K., Ghara, R., Giri, S. K., Iliev, I. T. & Munshi, S., Jan-2023, In: Astronomy & astrophysics. 669, 27 p., A20.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  1 Downloads (Pure)
• 2022

  A numerical study of 21-cm signal suppression and noise increase in direction-dependent calibration of LOFAR data

  Mevius, M., Mertens, F., Koopmans, L. V. E., Offringa, A. R., Yatawatta, S., Brentjens, M. A., Chapman, E., Ciardi, B., Gan, H., Gehlot, B. K., Ghara, R., Ghosh, A., Giri, S. K., Iliev, I. T., Mellema, G., Pandey, V. N. & Zaroubi, S., 1-Jan-2022, In: Monthly Notices of the Royal Astronomical Society. 509, 3, p. 3693-3702 10 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  7 Citations (Scopus)

  37 Downloads (Pure)

• Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies

  Abdalla, E., Abellán, G. F., Aboubrahim, A., Agnello, A., Akarsu, Ö., Akrami, Y., Alestas, G., Aloni, D., Amendola, L., Anchordoqui, L. A., Anderson, R. I., Arendse, N., Asgari, M., Ballardini, M., Barger, V., Basilakos, S., Batista, R. C., Battistelli, E. S., Battye, R., Benetti, M., & 183 othersBenisty, D., Berlin, A., de Bernardis, P., Berti, E., Bidenko, B., Birrer, S., Blakeslee, J. P., Boddy, K. K., Bom, C. R., Bonilla, A., Borghi, N., Bouchet, F. R., Braglia, M., Buchert, T., Buckley-Geer, E., Calabrese, E., Caldwell, R. R., Camarena, D., Capozziello, S., Casertano, S., Chen, G. C. F., Chluba, J., Chen, A., Chen, H. Y., Chudaykin, A., Cicoli, M., Copi, C. J., Courbin, F., Cyr-Racine, F. Y., Czerny, B., Dainotti, M., D'Amico, G., Davis, A. C., de Cruz Pérez, J., de Haro, J., Delabrouille, J., Denton, P. B., Dhawan, S., Dienes, K. R., Di Valentino, E., Du, P., Eckert, D., Escamilla-Rivera, C., Ferté, A., Finelli, F., Fosalba, P., Freedman, W. L., Frusciante, N., Gaztañaga, E., Giarè, W., Giusarma, E., Gómez-Valent, A., Handley, W., Harrison, I., Hart, L., Hazra, D. K., Heavens, A., Heinesen, A., Hildebrandt, H., Hill, J. C., Hogg, N. B., Holz, D. E., Hooper, D. C., Hosseininejad, N., Huterer, D., Ishak, M., Ivanov, M. M., Jaffe, A. H., Jang, I. S., Jedamzik, K., Jimenez, R., Joseph, M., Joudaki, S., Kamionkowski, M., Karwal, T., Kazantzidis, L., Keeley, R. E., Klasen, M., Komatsu, E., Koopmans, L. V. E., Kumar, S., Lamagna, L., Lazkoz, R., Lee, C. C., Lesgourgues, J., Levi Said, J., Lewis, T. R., L'Huillier, B., Lucca, M., Maartens, R., Macri, L. M., Marfatia, D., Marra, V., Martins, C. J. A. P., Masi, S., Matarrese, S., Mazumdar, A., Melchiorri, A., Mena, O., Mersini-Houghton, L., Mertens, J., Milaković, D., Minami, Y., Miranda, V., Moreno-Pulido, C., Moresco, M., Mota, D. F., Mottola, E., Mozzon, S., Muir, J., Mukherjee, A., Mukherjee, S., Naselsky, P., Nath, P., Nesseris, S., Niedermann, F., Notari, A., Nunes, R. C., Ó Colgáin, E., Owens, K. A., Özülker, E., Pace, F., Paliathanasis, A., Palmese, A., Pan, S., Paoletti, D., Perez Bergliaffa, S. E., Perivolaropoulos, L., Pesce, D. W., Pettorino, V., Philcox, O. H. E., Pogosian, L., Poulin, V., Poulot, G., Raveri, M., Reid, M. J., Renzi, F., Riess, A. G., Sabla, V. I., Salucci, P., Salzano, V., Saridakis, E. N., Sathyaprakash, B. S., Schmaltz, M., Schöneberg, N., Scolnic, D., Sen, A. A., Sehgal, N., Shafieloo, A., Sheikh-Jabbari, M. M., Silk, J., Silvestri, A., Skara, F., Sloth, M. S., Soares-Santos, M., Solà Peracaula, J., Songsheng, Y. Y., Soriano, J. F., Staicova, D., Starkman, G. D., Szapudi, I., Teixeira, E. M., Thomas, B., Treu, T., Trott, E., van de Bruck, C., Vazquez, J. A., Verde, L., Visinelli, L., Wang, D., Wang, J. M., Wang, S. J., Watkins, R., Watson, S., Webb, J. K., Weiner, N., Weltman, A., Witte, S. J., Wojtak, R., Yadav, A. K., Yang, W., Zhao, G. B. & Zumalacárregui, M., Jun-2022, In: Journal of High Energy Astrophysics. 34, p. 49-211 163 p.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  File
  88 Citations (Scopus)

  1 Downloads (Pure)

• Degree-scale galactic radio emission at 122 MHz around the North Celestial Pole with LOFAR-AARTFAAC

  Gehlot, B. K., Koopmans, L. V. E., Offringa, A. R., Gan, H., Ghara, R., Giri, S. K., Kuiack, M., Mertens, F. G., Mevius, M., Mondal, R., Pandey, V. N., Shulevski, A., Wijers, R. A. M. J. & Yatawatta, S., 1-Jun-2022, In: Astronomy and astrophysics. 662, 11 p., A97.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  8 Downloads (Pure)

• Detecting gravitational lenses using machine learning: exploring interpretability and sensitivity to rare lensing configurations

  Wilde, J., Serjeant, S., Bromley, J. M., Dickinson, H., Koopmans, L. V. E. & Metcalf, R. B., 1-May-2022, In: Monthly Notices of the Royal Astronomical Society. 512, 3, p. 3464-3479 16 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  1 Downloads (Pure)

• Lenses In VoicE (LIVE): searching for strong gravitational lenses in the VOICE@VST survey using convolutional neural networks

  Gentile, F., Tortora, C., Covone, G., Koopmans, L. V. E., Spiniello, C., Fan, Z., Li, R., Liu, D., Napolitano, N. R., Vaccari, M. & Fu, L., 1-Feb-2022, In: Monthly Notices of the Royal Astronomical Society. 510, 1, p. 500-514 15 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  1 Downloads (Pure)

• SEAGLE - III: Towards resolving the mismatch in the dark-matter fraction in early-type galaxies between silations and observations

  Mukherjee, S., Koopmans, L. V. E., Tortora, C., Schaller, M., Metcalf, R. B., Schaye, J. & Vernardos, G., 1-Jan-2022, In: Monthly Notices of the Royal Astronomical Society. 509, 1, p. 1245-1251 7 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  28 Downloads (Pure)

• SHARP - VIII. J0924+0219 lens mass distribution and time-delay prediction through adaptive-optics imaging

  Chen, G. C. -F., Fassnacht, C. D., Suyu, S. H., Koopmans, L. V. E., Lagattuta, D. J., McKean, J. P., Auger, M. W., Vegetti, S. & Treu, T., 1-Jun-2022, In: Monthly Notices of the Royal Astronomical Society. 513, 2, p. 2349-2359 11 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  1 Downloads (Pure)

• Sky-averaged 21-cm signal extraction using multiple antennas with an SVD framework: the REACH case

  Saxena, A., Meerburg, P. D., Acedo, E. D. L., Handley, W. & Koopmans, L. V. E., 14-Dec-2022, (Submitted) 11 p.

  Research output: Working paper › Preprint › Academic

• Statistical analysis of the causes of excess variance in the 21 cm signal power spectra obtained with the Low-Frequency Array

  Gan, H., Koopmans, L. V. E., Mertens, F. G., Mevius, M., Offringa, A. R., Ciardi, B., Gehlot, B. K., Ghara, R., Ghosh, A., Giri, S. K., Iliev, I. T., Mellema, G., Pandey, V. N. & Zaroubi, S., Jul-2022, In: Astronomy & astrophysics. 663, 28 p., A9.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  3 Citations (Scopus)

  9 Downloads (Pure)

• Sub-arcsecond imaging with the International LOFAR Telescope: II. Completion of the LOFAR Long-Baseline Calibrator Survey

  Jackson, N., Badole, S., Morgan, J., Chhetri, R., Prūsis, K., Nikolajevs, A., Morabito, L., Brentjens, M., Sweijen, F., Iacobelli, M., Orrù, E., Sluman, J., Blaauw, R., Mulder, H., Van Dijk, P., Mooney, S., Deller, A., Moldon, J., Callingham, J. R., Harwood, J., & 52 othersHardcastle, M., Heald, G., Drabent, A., Mckean, J. P., Asgekar, A., Avruch, I. M., Bentum, M. J., Bonafede, A., Brouw, W. N., Brüggen, M., Butcher, H. R., Ciardi, B., Coolen, A., Corstanje, A., Damstra, S., Duscha, S., Eislöffel, J., Falcke, H., Garrett, M., De Gasperin, F., Griessmeier, J. M., Gunst, A. W., Van Haarlem, M. P., Hoeft, M., Van Der Horst, A. J., Jütte, E., Koopmans, L. V. E., Krankowski, A., Maat, P., Mann, G., Miley, G. K., Nelles, A., Norden, M., Paas, M., Pandey, V. N., Pandey-Pommier, M., Pizzo, R. F., Reich, W., Rothkaehl, H., Rowlinson, A., Ruiter, M., Shulevski, A., Schwarz, D. J., Smirnov, O., Tagger, M., Vocks, C., Van Weeren, R. J., Wijers, R., Wucknitz, O., Zarka, P., Zensus, J. A. & Zucca, P., 1-Feb-2022, In: Astronomy and astrophysics. 658, 13 p., A2.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  10 Citations (Scopus)

  9 Downloads (Pure)

• Sub-arcsecond imaging with the International LOFAR Telescope: I. Foundational calibration strategy and pipeline

  Morabito, L. K., Jackson, N. J., Mooney, S., Sweijen, F., Badole, S., Kukreti, P., Venkattu, D., Groeneveld, C., Kappes, A., Bonnassieux, E., Drabent, A., Iacobelli, M., Croston, J. H., Best, P. N., Bondi, M., Callingham, J. R., Conway, J. E., Deller, A. T., Hardcastle, M. J., Mckean, J. P., & 54 othersMiley, G. K., Moldon, J., Röttgering, H. J. A., Tasse, C., Shimwell, T. W., Van Weeren, R. J., Anderson, J. M., Asgekar, A., Avruch, I. M., Van Bemmel, I. M., Bentum, M. J., Bonafede, A., Brouw, W. N., Butcher, H. R., Ciardi, B., Corstanje, A., Coolen, A., Damstra, S., De Gasperin, F., Duscha, S., Eislöffel, J., Engels, D., Falcke, H., Garrett, M. A., Griessmeier, J., Gunst, A. W., Van Haarlem, M. P., Hoeft, M., Van Der Horst, A. J., Jütte, E., Kadler, M., Koopmans, L. V. E., Krankowski, A., Mann, G., Nelles, A., Oonk, J. B. R., Orru, E., Paas, H., Pandey, V. N., Pizzo, R. F., Pandey-Pommier, M., Reich, W., Rothkaehl, H., Ruiter, M., Schwarz, D. J., Shulevski, A., Soida, M., Tagger, M., Vocks, C., Wijers, R. A. M. J., Wijnholds, S. J., Wucknitz, O., Zarka, P. & Zucca, P., 1-Feb-2022, In: Astronomy and astrophysics. 658, 21 p., A1.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  20 Citations (Scopus)

• The Dark Ages' 21-cm Trispectrum

  Flöss, T., Wild, T. D., Meerburg, P. D. & Koopmans, L. V. E., 17-Jun-2022, In: Journal of Cosmology and Astroparticle Physics. 2022, 46 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  28 Downloads (Pure)

• The very knotty lenser: Exploring the role of regularization in source and potential reconstructions using Gaussian process regression

  Vernardos, G. & Koopmans, L. V. E., 1-Oct-2022, In: Monthly Notices of the Royal Astronomical Society. 516, p. 1347-1372 26 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  1 Downloads (Pure)
• 2021

  Beyond the Detector Horizon: Forecasting Gravitational-Wave Strong Lensing

  Wierda, A. R. A. C., Wempe, E., Hannuksela, O. A., Koopmans, L. V. E. & Van Den Broeck, C., 10-Nov-2021, In: Astrophysical Journal. 921, 2, 10 p., 154.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  8 Citations (Scopus)

  13 Downloads (Pure)

• Comparing foreground removal techniques for recovery of the LOFAR-EoR 21 cm power spectrum

  Hothi, I., Chapman, E., Pritchard, J. R., Mertens, F. G., Koopmans, L. V. E., Ciardi, B., Gehlot, B. K., Ghara, R., Ghosh, A., Giri, S. K., Iliev, I. T., Jelić, V. & Zaroubi, S., 12-Nov-2021, In: Monthly Notices of the Royal Astronomical Society. 500, p. 2264-2277 14 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  24 Citations (Scopus)

  19 Downloads (Pure)

• High-quality Strong Lens Candidates in the Final Kilo-Degree Survey Footprint

  Li, R., Napolitano, N. R., Spiniello, C., Tortora, C., Kuijken, K., Koopmans, L. V. E., Schneider, P., Getman, F., Xie, L., Long, L., Shu, W., Vernardos, G., Huang, Z., Covone, G., Dvornik, A., Heymans, C., Hildebrandt, H., Radovich, M. & Wright, A. H., 1-Dec-2021, In: The Astrophysical Journal. 923, 16 p., 16.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  7 Citations (Scopus)

  11 Downloads (Pure)

• Inferring the properties of the sources of reionization using the morphological spectra of the ionized regions

  Gazagnes, S., Koopmans, L. V. E. & Wilkinson, M. H. F., Apr-2021, In: Monthly Notices of the Royal Astronomical Society. 502, 2, p. 1816–1842

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  6 Citations (Scopus)

  56 Downloads (Pure)

• Interpreting LOFAR 21-cm signal upper limits at z ≍ 9.1 in the context of high-z galaxy and reionization observations

  Greig, B., Mesinger, A., Koopmans, L. V. E., Ciardi, B., Mellema, G., Zaroubi, S., Giri, S. K., Ghara, R., Ghosh, A., Iliev, I. T., Mertens, F. G., Mondal, R., Offringa, A. R. & Pandey, V. N., 1-Jan-2021, In: Monthly Notices of the Royal Astronomical Society. 501, p. 1-13 13 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  26 Citations (Scopus)

  25 Downloads (Pure)

• Joint constraints on thermal relic dark matter from strong gravitational lensing, the Ly α forest, and Milky Way satellites

  Enzi, W., Murgia, R., Newton, O., Vegetti, S., Frenk, C., Viel, M., Cautun, M., Fassnacht, C. D., Auger, M., Despali, G., McKean, J., Koopmans, L. V. E. & Lovell, M., 1-Oct-2021, In: Monthly Notices of the Royal Astronomical Society. 506, p. 5848-5862 15 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  30 Citations (Scopus)

  15 Downloads (Pure)

• Peering into the dark (ages) with low-frequency space interferometers

  Koopmans, L. V. E., Barkana, R., Bentum, M., Bernardi, G., Boonstra, A-J., Bowman, J., Burns, J., Chen, X., Datta, A., Falcke, H., Fialkov, A., Gehlot, B., Gurvits, L., Jelić, V., Klein-Wolt, M., Lazio, J., Meerburg, D., Mellema, G., Mertens, F., Mesinger, A., & 10 othersOffringa, A., Pritchard, J., Semelin, B., Subrahmanyan, R., Silk, J., Trott, C., Vedantham, H., Verde, L., Zaroubi, S. & Zarka, P., 1-Jun-2021, In: Experimental Astronomy. 51, p. 1641-1676 36 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  20 Downloads (Pure)

• Pilot Study and Early Results of the Cosmic Filaments and Magnetism Survey with Nenufar: The Coma Cluster Field

  Bonnassieux, E., Tremou, E., Girard, J. N., Loh, A., Vacca, V., Corbel, S., Cecconi, B., Grießmeier, J. M., Koopmans, L. V. E., Tagger, M., Theureau, G. & Zarka, P., Dec-2021, In: Galaxies. 9, 4, 105.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  1 Citation (Scopus)

  19 Downloads (Pure)

• SEAGLE - II. Constraints on feedback models in galaxy formation from massive early-type strong-lens galaxies

  Mukherjee, S., Koopmans, L. V. E., Metcalf, R. B., Tortora, C., Schaller, M., Schaye, J., Vernardos, G. & Bellagamba, F., 1-Jul-2021, In: Monthly Notices of the Royal Astronomical Society. 504, p. 3455-3477 23 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  5 Citations (Scopus)

  14 Downloads (Pure)

• The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1: II. The ELAIS-N1 LOFAR deep field

  Sabater, J., Best, P. N., Tasse, C., Hardcastle, M. J., Shimwell, T. W., Nisbet, D., Jelic, V., Callingham, J. R., Röttgering, H. J. A., Bonato, M., Bondi, M., Ciardi, B., Cochrane, R. K., Jarvis, M. J., Kondapally, R., Koopmans, L. V. E., O'Sullivan, S. P., Prandoni, I., Schwarz, D. J., Smith, D. J. B., & 3 othersWang, L., Williams, W. L. & Zaroubi, S., 1-Apr-2021, In: Astronomy and astrophysics. 648, 20 p., A2.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  39 Citations (Scopus)

  39 Downloads (Pure)
• 2020

  A LOFAR observation of ionospheric scintillation from two simultaneous travelling ionospheric disturbances

  Fallows, R. A., Forte, B., Astin, I., Allbrook, T., Arnold, A., Wood, A., Dorrian, G., Mevius, M., Rothkaehl, H., Matyjasiak, B., Krankowski, A., Anderson, J. M., Asgekar, A., Avruch, I. M., Bentum, M., Bisi, M. M., Butcher, H. R., Ciardi, B., Dabrowski, B., Damstra, S., & 38 othersDe Gasperin, F., Duscha, S., Eislöffel, J., Franzen, T. M. O., Garrett, M. A., Grießmeier, J. M., Gunst, A. W., Hoeft, M., Hörandel, J. R., Iacobelli, M., Intema, H. T., Koopmans, L. V. E., Maat, P., Mann, G., Nelles, A., Paas, H., Pandey, V. N., Reich, W., Rowlinson, A., Ruiter, M., Schwarz, D. J., Serylak, M., Shulevski, A., Smirnov, O. M., Soida, M., Steinmetz, M., Thoudam, S., Toribio, M. C., Van Ardenne, A., Van Bemmel, I. M., Van Der Wiel, M. H. D., Van Haarlem, M. P., Vermeulen, R. C., Vocks, C., Wijers, R. A. M. J., Wucknitz, O., Zarka, P. & Zucca, P., 20-Mar-2020, In: Journal of Space Weather and Space Climate. 10, 10.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  13 Citations (Scopus)

  54 Downloads (Pure)

• Building the Largest Spectroscopic Sample of Ultracompact Massive Galaxies with the Kilo Degree Survey

  Scognamiglio, D., Tortora, C., Spavone, M., Spiniello, C., Napolitano, N. R., D'Ago, G., La Barbera, F., Getman, F., Roy, N., Raj, M. A., Radovich, M., Brescia, M., Cavuoti, S., Koopmans, L. V. E., Kuijken, K. H., Longo, G. & Petrillo, C. E., 10-Apr-2020, In: Astrophysical Journal. 893, 1, 22 p., 4.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  11 Citations (Scopus)

  63 Downloads (Pure)

• Cassiopeia A, Cygnus A, Taurus A, and Virgo A at ultra-low radio frequencies

  de Gasperin, F., Vink, J., McKean, J. P., Asgekar, A., Avruch, I., Bentum, M. J., Blaauw, R., Bonafede, A., Broderick, J. W., Brüggen, M., Breitling, F., Brouw, W. N., Butcher, H. R., Ciardi, B., Cuciti, V., de Vos, M., Duscha, S., Eislöffel, J., Engels, D., Fallows, R. A., & 42 othersFranzen, T. M. O., Garrett, M. A., Gunst, A. W., Hörandel, J., Heald, G., Hoeft, M., Iacobelli, M., Koopmans, L. V. E., Krankowski, A., Maat, P., Mann, G., Mevius, M., Miley, G., Morganti, R., Nelles, A., Norden, M. J., Offringa, A. R., Orrú, E., Paas, H., Pandey, V. N., Pandey-Pommier, M., Pekal, R., Pizzo, R., Reich, W., Rowlinson, A., Rottgering, H. J. A., Schwarz, D. J., Shulevski, A., Smirnov, O., Sobey, C., Soida, M., Steinmetz, M., Tagger, M., Toribio, M. C., van Ardenne, A., van der Horst, A. J., van Haarlem, M. P., van Weeren, R. J., Vocks, C., Wucknitz, O., Zarka, P. & Zucca, P., 26-Mar-2020, In: Astronomy & astrophysics. 635, 7 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  12 Citations (Scopus)

  62 Downloads (Pure)

• Constraining the intergalactic medium at z ≈ 9.1 using LOFAR Epoch of Reionization observations

  Ghara, R., Giri, S. K., Mellema, G., Ciardi, B., Zaroubi, S., Iliev, I. T., Koopmans, L. V. E., Chapman, E., Gazagnes, S., Gehlot, B. K., Ghosh, A., Jelić, V., Mertens, F. G., Mondal, R., Schaye, J., Silva, M. B., Asad, K. M. B., Kooistra, R., Mevius, M., Offringa, A. R., & 2 othersPandey, V. N. & Yatawatta, S., Apr-2020, In: Monthly Notices of the Royal Astronomical Society. 493, 4, p. 4728-4747 20 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  44 Citations (Scopus)

  84 Downloads (Pure)

• Cosmic dissonance: Are new physics or systematics behind a short sound horizon?

  Arendse, N., Wojtak, R. J., Agnello, A., Chen, G. C. F., Fassnacht, C. D., Sluse, D., Hilbert, S., Millon, M., Bonvin, V., Wong, K. C., Courbin, F., Suyu, S. H., Birrer, S., Treu, T. & Koopmans, L. V. E., 1-Jul-2020, In: Astronomy and astrophysics. 639, 13 p., A57.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  46 Citations (Scopus)

  42 Downloads (Pure)

• Discovery of Two Einstein Crosses from Massive Post-blue Nugget Galaxies at z > 1 in KiDS

  Napolitano, N. R., Li, R., Spiniello, C., Tortora, C., Sergeyev, A., D'Ago, G., Guo, X., Xie, L., Radovich, M., Roy, N., Koopmans, L. V. E., Kuijken, K., Bilicki, M., Erben, T., Getman, F., Heymans, C., Hildebrandt, H., Moya, C., Shan, H. Y., Vernardos, G., & 1 othersWright, A. H., 1-Dec-2020, In: The Astrophysical Journal Letters. 904, 2

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  2 Citations (Scopus)

  32 Downloads (Pure)

• Foreground modelling via Gaussian process regression: An application to HERA data

  Ghosh, A., Mertens, F., Bernardi, G., Santos, M. G., Kern, N. S., Carilli, C. L., Grobler, T. L., Koopmans, L. V. E., Jacobs, D. C., Liu, A., Parsons, A. R., Morales, M. F., Aguirre, J. E., Dillon, J. S., Hazelton, B. J., Smirnov, O. M., Gehlot, B. K., Matika, S., Alexander, P., Ali, Z. S., & 53 othersBeardsley, A. P., Benefo, R. K., Billings, T. S., Bowman, J. D., Bradley, R. F., Cheng, C., Chichura, P. M., Deboer, D. R., Acedo, E. D. L., Ewall-Wice, A., Fadana, G., Fagnoni, N., Fortino, A. F., Fritz, R., Furlanetto, S. R., Gallardo, S., Glendenning, B., Gorthi, D., Greig, B., Grobbelaar, J., Hickish, J., Josaitis, A., Julius, A., Igarashi, A. S., Kariseb, M., Kohn, S. A., Kolopanis, M., Lekalake, T., Loots, A., MacMahon, D., Malan, L., Malgas, C., Maree, M., Martinot, Z. E., Mathison, N., Matsetela, E., Mesinger, A., Neben, A. R., Nikolic, B., Nunhokee, C. D., Patra, N., Pieterse, S., Razavi-Ghods, N., Ringuette, J., Robnett, J., Rosie, K., Sell, R., Smith, C., Syce, A., Tegmark, M., Thyagarajan, N., Williams, P. K. G. & Zheng, H., 14-May-2020, In: Monthly Notices of the Royal Astronomical Society. 495, 3, p. 2813-2826 14 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  11 Citations (Scopus)

  52 Downloads (Pure)

• H_0 from Lensed Quasars

  Wong, K. C., Suyu, S. H., Chen, G. C. -F., Rusu, C. E., Millon, M., Sluse, D., Bonvin, V., Fassnacht, C. D., Taubenberger, S., Auger, M. W., Birrer, S., Chan, J. H. H., Courbin, F., Hilbert, S., Tihhonova, O., Treu, T., Agnello, A., Ding, X., Jee, I., Komatsu, E., & 6 othersShajib, A. J., Sonnenfeld, A., Blandford, R. D., Koopmans, L. V. E., Marshall, P. J. & Meylan, G., 1-Oct-2020. 16 p.

  Research output: Contribution to conference › Paper › Academic

  Open Access

  File
  31 Downloads (Pure)

• H0LiCOW XII. Lens mass model of WFI2033-4723 and blind measurement of its time-delay distance and H₀

  Rusu, C. E., Wong, K. C., Bonvin, V., Sluse, D., Suyu, S. H., Fassnacht, C. D., Chan, J. H. H., Hilbert, S., Auger, M. W., Sonnenfeld, A., Birrer, S., Courbin, F., Treu, T., Chen, G. C. F., Halkola, A., Koopmans, L. V. E., Marshall, P. J. & Shajib, A. J., 1-Oct-2020, In: Monthly Notices of the Royal Astronomical Society. 498, 1, p. 1440-1468 29 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  39 Citations (Scopus)

  53 Downloads (Pure)

• H0LiCOW-XIII. A 2.4 per cent measurement of H₀from lensed quasars: 5.3σ tension between early-and late-Universe probes

  Wong, K. C., Suyu, S. H., Chen, G. C. F., Rusu, C. E., Millon, M., Sluse, D., Bonvin, V., Fassnacht, C. D., Taubenberger, S., Auger, M. W., Birrer, S., Chan, J. H. H., Courbin, F., Hilbert, S., Tihhonova, O., Treu, T., Agnello, A., Ding, X., Jee, I., Komatsu, E., & 6 othersShajib, A. J., Sonnenfeld, A., Blandford, R. D., Koopmans, L. V. E., Marshall, P. J. & Meylan, G., 1-Oct-2020, In: Monthly Notices of the Royal Astronomical Society. 498, 1, p. 1420-1439 20 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  405 Citations (Scopus)

  38 Downloads (Pure)

• Improved upper limits on the 21 cm signal power spectrum of neutral hydrogen at z approximate to 9.1 from LOFAR

  Mertens, F. G., Mevius, M., Koopmans, L. V. E., Offringa, A. R., Mellema, G., Zaroubi, S., Brentjens, M. A., Gan, H., Gehlot, B. K., Pandey, V. N., Sardarabadi, A. M., Vedantham, H. K., Yatawatta, S., Asad, K. M. B., Ciardi, B., Chapman, E., Gazagnes, S., Ghara, R., Ghosh, A., Giri, S. K., & 6 othersIliev, I. T., Jelic, R., Kooistra, R., Mondal, R., Schaye, J. & Silva, M. B., Apr-2020, In: Monthly Notices of the Royal Astronomical Society. 493, 2, p. 1662-1685 24 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  114 Citations (Scopus)

  63 Downloads (Pure)

• LOFAR 144-MHz follow-up observations of GW170817

  Broderick, J. W., Shimwell, T. W., Gourdji, K., Rowlinson, A., Nissanke, S., Hotokezaka, K., Jonker, P. G., Tasse, C., Hardcastle, M. J., Oonk, J. B. R., Fender, R. P., Wijers, R. A. M. J., Shulevski, A., Stewart, A. J., ter Veen, S., Moss, V. A., van der Wiel, M. H. D., Nichols, D. A., Piette, A., Bell, M. E., & 49 othersCarbone, D., Corbel, S., Eislöffel, J., Grießmeier, J-M., Keane, E. F., Law, C. J., Muñoz-Darias, T., Pietka, M., Serylak, M., van der Horst, A. J., van Leeuwen, J., Wijnands, R., Zarka, P., Anderson, J. M., Bentum, M. J., Blaauw, R., Brouw, W. N., Brüggen, M., Ciardi, B., de Vos, M., Duscha, S., Fallows, R. A., Franzen, T. M. O., Garrett, M. A., Gunst, A. W., Hoeft, M., Hörandel, J. R., Iacobelli, M., Jütte, E., Koopmans, L. V. E., Krankowski, A., Maat, P., Mann, G., Mulder, H., Nelles, A., Paas, H., Pandey-Pommier, M., Pekal, R., Reich, W., Röttgering, H. J. A., Schwarz, D. J., Smirnov, O., Soida, M., Toribio, M. C., van Haarlem, M. P., van Weeren, R. J., Vocks, C., Wucknitz, O. & Zucca, P., 1-Jun-2020, In: Monthly Notices of the Royal Astronomical Society. 494, 4, p. 5110-5117 8 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  6 Citations (Scopus)

  25 Downloads (Pure)

• New High-quality Strong Lens Candidates with Deep Learning in the Kilo-Degree Survey

  Li, R., Napolitano, N. R., Tortora, C., Spiniello, C., Koopmans, L. V. E., Huang, Z., Roy, N., Vernardos, G., Chatterjee, S., Giblin, B., Getman, F., Radovich, M., Covone, G. & Kuijken, K., Aug-2020, In: Astrophysical Journal. 899, 1, 14 p., 30.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  28 Citations (Scopus)

  87 Downloads (Pure)

• Reionization and cosmic dawn astrophysics from the Square Kilometre Array: impact of observing strategies

  Greig, B., Mesinger, A. & Koopmans, L. V. E., Jan-2020, In: Monthly Notices of the Royal Astronomical Society. 491, 1, p. 1398-1407 10 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  10 Citations (Scopus)

  70 Downloads (Pure)

• SHARP - VI. Evidence for CO (1-0) molecular gas extended on kpc-scales in AGN star-forming galaxies at high redshift

  Spingola, C., McKean, J. P., Vegetti, S., Powell, D., Auger, M. W., Koopmans, L. V. E., Fassnacht, C. D., Lagattuta, D. J., Rizzo, F., Stacey, H. R. & Sweijen, F., 1-Jun-2020, In: Monthly Notices of the Royal Astronomical Society. 495, 2, p. 2387-2407 21 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  17 Citations (Scopus)

  24 Downloads (Pure)

• TDCOSMO: IV. Hierarchical time-delay cosmography – joint inference of the Hubble constant and galaxy density profiles

  Birrer, S., Shajib, A. J., Galan, A., Millon, M., Treu, T., Agnello, A., Auger, M., Chen, G. C-F., Christensen, L., Collett, T., Courbin, F., Fassnacht, C. D., Koopmans, L. V. E., Marshall, P. J., Park, J-W., Rusu, C. E., Sluse, D., Spiniello, C., Suyu, S. H., Wagner-Carena, S., & 7 othersWong, K. C., Barnabè, M., Bolton, A. S., Czoske, O., Ding, X., Frieman, J. A. & Van de Vyvere, L., 1-Nov-2020, In: Astronomy & astrophysics. 643, 40 p., A165.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  143 Citations (Scopus)

  35 Downloads (Pure)

• TDCOSMO: I. An exploration of systematic uncertainties in the inference of H0 from time-delay cosmography

  Millon, M., Galan, A., Courbin, F., Treu, T., Suyu, S. H., Ding, X., Birrer, S., Chen, G. C-F., Shajib, A. J., Sluse, D., Wong, K. C., Agnello, A., Auger, M. W., Buckley-Geer, E. J., Chan, J. H. H., Collett, T., Fassnacht, C. D., Hilbert, S., Koopmans, L. V. E., Motta, V., & 5 othersMukherjee, S., Rusu, C. E., Sonnenfeld, A., Spiniello, C. & Van de Vyvere, L., 1-Jul-2020, In: Astronomy & astrophysics. 639, 19 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  76 Citations (Scopus)

  24 Downloads (Pure)

• The AARTFAAC Cosmic Explorer: Observations of the 21-cm power spectrum in the EDGES absorption trough

  Gehlot, B. K., Mertens, F. G., Koopmans, L. V. E., Offringa, A. R., Shulevski, A., Mevius, M., Brentjens, M. A., Kuiack, M., Pandey, V. N., Rowlinson, A., Sardarabadi, A. M., Vedantham, H. K., Wijers, R. A. M. J., Yatawatta, S. & Zaroubi, S., 1-Dec-2020, In: Monthly Notices of the Royal Astronomical Society. 499, 3, p. 4158-4173 16 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  14 Citations (Scopus)

  48 Downloads (Pure)

• The e-MERGE Survey (e-MERLIN Galaxy Evolution Survey): Overview and survey description

  Muxlow, T. W. B., Thomson, A. P., Radcliffe, J. F., Wrigley, N. H., Beswick, R. J., Smail, I., McHardy, I. M., Garrington, S. T., Ivison, R. J., Jarvis, M. J., Prandoni, I., Bondi, M., Guidetti, D., Argo, M. K., Bacon, D., Best, P. N., Biggs, A. D., Chapman, S. C., Coppin, K., Chen, H., & 20 othersGarratt, T. K., Garrett, M. A., Ibar, E., Kneib, J-P., Knudsen, K. K., Koopmans, L. V. E., Morabito, L. K., Murphy, E. J., Njeri, A., Pearson, C., Pérez-Torres, M. A., Richards, A. M. S., Röttgering, H. J. A., Sargent, M. T., Serjeant, S., Simpson, C., Simpson, J. M., Swinbank, A. M., Varenius, E. & Venturi, T., 1-Jun-2020, In: Monthly Notices of the Royal Astronomical Society. 495, 1, p. 1188-1208 21 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  14 Citations (Scopus)

  44 Downloads (Pure)

• Tight constraints on the excess radio background at z = 9.1 from LOFAR

  Mondal, R., Fialkov, A., Fling, C., Iliev, I. T., Barkana, R., Ciardi, B., Mellema, G., Zaroubi, S., Koopmans, L. V. E., Mertens, F. G., Gehlot, B. K., Ghara, R., Ghosh, A., Giri, S. K., Offringa, A. & Pandey, V. N., 1-Nov-2020, In: Monthly Notices of the Royal Astronomical Society. 498, 3, p. 4178-4191 14 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  37 Citations (Scopus)

  29 Downloads (Pure)
• 2019

  A measurement of the Hubble constant from angular diameter distances to two gravitational lenses

  Jee, I., Suyu, S. H., Komatsu, E., Fassnacht, C. D., Hilbert, S. & Koopmans, L. V. E., 13-Sept-2019, In: Science. 365, 6458, p. 1134-1138 5 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  34 Citations (Scopus)

  41 Downloads (Pure)

• A New Generation of Cool White Dwarf Atmosphere Models. III. WD J2356-209: Accretion of a Planetesimal with an Unusual Composition

  Blouin, S., Dufour, P., Allard, N. F., Salim, S., Rich, R. M. & Koopmans, L. V. E., 20-Feb-2019, In: Astrophysical Journal. 872, 2, 9 p., 188.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  12 Citations (Scopus)

  46 Downloads (Pure)

• A SHARP view of H0LiCOW: H-0 from three time-delay gravitational lens systems with adaptive optics imaging

  Chen, G. C. -F., Fassnacht, C. D., Suyu, S. H., Rusu, C. E., Chan, J. H. H., Wong, K. C., Auger, M. W., Hilbert, S., Bonvin, V., Birrer, S., Millon, M., Koopmans, L. V. E., Lagattuta, D. J., McKean, J. P., Vegetti, S., Courbin, F., Ding, X., Halkola, A., Jee, I., Shajib, A. J., & 3 othersSluse, D., Sonnenfeld, A. & Treu, T., Dec-2019, In: Monthly Notices of the Royal Astronomical Society. 490, 2, p. 1743-1773 31 p.

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  105 Citations (Scopus)

  89 Downloads (Pure)

• Cosmic Dawn and Reionization: Astrophysics in the Final Frontier

  Cooray, A., Aguirre, J., Ali-Haimoud, Y., Alvarez, M., Appleton, P., Armus, L., Becker, G., Bock, J., Bowler, R., Bowman, J., Bradford, M., Breysse, P., Bromm, V., Burns, J., Caputi, K., Castellano, M., Chang, T-C., Chary, R., Chiang, H., Cohn, J., & 54 othersConselice, C., Cuby, J-G., Davies, F., Dayal, P., Dore, O., Farrah, D., Ferrara, A., Finkelstein, S., Furlanetto, S., Hazelton, B., Heneka, C., Hutter, A., Jacobs, D., Koopmans, L., Kovetz, E., La Piante, P., Le Fevre, O., Liu, A., Ma, J., Ma, Y-Z., Malhotra, S., Mao, Y., Marrone, D., Masui, K., McQuinn, M., Mirocha, J., Mortlock, D., Murphy, E., Nayyeri, H., Natarajan, P., Nithyanandan, T., Parsons, A., Pello, R., Pope, A., Rhoads, J., Rhodes, J., Riechers, D., Robertson, B., Scarlata, C., Serjeant, S., Saliwanchik, B., Salvaterra, R., Schneider, R., Silva, M., Sahlén, M., Santos, M. G., Switzer, E., Temi, P., Trac, H., Venkatesan, A., Visbal, E., Zaldarriaga, M., Zemcov, M. & Zheng, Z., 1-May-2019, In: Bulletin of the American Astronomical Society. 51, 3, id. 48 (2019).

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  41 Downloads (Pure)

• Cosmology with the Highly Redshifted 21 cm Line

  Liu, A., Aguirre, J., Ali-Haimoud, Y., Alvarez, M., Beardsley, A., Becker, G., Bowman, J., Breysse, P., Bromm, V., Bull, P., Burns, J., Carucci, I. P., Chang, T-C., Chiang, H., Cohn, J., DeBoer, D., Dillon, J., Dvorkin, C., Fialkov, A., Furlanetto, S., & 24 othersGnedin, N., Hazelton, B., Jacobs, D., Wolt, M. K., Kohn, S., Koopmans, L., Kovetz, E., La Plante, P., Lidz, A., Ma, Y-Z., Mao, Y., Masui, K., Mesinger, A., Mirocha, J., Munoz, J., Murray, S., Parsons, A., Pober, J., Saliwanchik, B., Sievers, J., Thyagarajan, N., Trac, H., Visbal, E. & Zaldarriaga, M., 1-May-2019, In: Bulletin of the American Astronomical Society. 51

  Research output: Contribution to journal › Article › Academic › peer-review

  Open Access

  File
  48 Downloads (Pure)

• Erratum: SHARP - V. Modelling gravitationally lensed radio arcs imaged with global VLBI observations

  Spingola, C., McKean, J. P., Auger, M. W., Fassnacht, C. D., Koopmans, L. V. E., Lagattuta, D. J. & Vegetti, S., Jan-2019, In: Monthly Notices of the Royal Astronomical Society. 482, 1, p. 1247-1247 1 p.

  Research output: Contribution to journal › Erratum

  Open Access

  File
  204 Downloads (Pure)