Research output per year
Research output per year
Network
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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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 AccessFile7 Citations (Scopus)34 Downloads (Pure) -
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., Koopmans, L. V. E., Offringa, A., Mevius, M., Pandey, V., Brackenhoff, S. A., Ceccotti, E., Ciardi, B., Gehlot, B., Ghara, R., Giri, S. K., Iliev, I. T. & Munshi, S., Sep-2022, (Accepted/In press) In: Astronomy & astrophysics.Research output: Contribution to journal › Article › Academic › peer-review
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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 AccessFile7 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 AccessFile26 Downloads (Pure) -
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 AccessFile3 Citations (Scopus)4 Downloads (Pure)
Activities
- 2 Academic presentation
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KITP Conference: Applications of Gravitational Lensing: Unique Insights into Galaxy Formation and Evolution, Oct 5, 2006, Kavli Institute for Theoretical Physics, University of California, Santa Barbara
Luitje Koopmans (Speaker)
5-Oct-2006Activity: Talk and presentation › Academic presentation › Academic
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The New Cosmology Confronts Observation: The Cosmic Microwave Background, Dark Matter, Dark Energy, and Brane Worlds - KITP Program
Luitje Koopmans (Speaker)
3-Oct-2002Activity: Talk and presentation › Academic presentation › Academic
Datasets
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SLACS. XIII. Galaxy-scale strong lens candidates
Shu, Y. (Contributor), Brownstein, J. R. (Contributor), Bolton, A. S. (Contributor), Koopmans, L. (Contributor), Treu, T. (Contributor), Montero-Dorta, A. D. (Contributor), Auger, M. W. (Contributor), Czoske, O. (Contributor), Gavazzi, R. (Contributor), Marshall, P. J. (Contributor) & Moustakas, L. A. (Contributor), University of Groningen, 23-Sep-2019
DOI: 10.26093/cds/vizier.18510048
Dataset
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MG B2016+112 radio images
Spingola, C. (Contributor), McKean, J. (Contributor), Massari, D. (Contributor) & Koopmans, L. (Contributor), University of Groningen, 30-Sep-2019
DOI: 10.26093/cds/vizier.36300108
Dataset
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KiDS ultracompact massive galaxies sp. obs.
Scognamiglio, D. (Contributor), Tortora, C. (Contributor), Spavone, M. (Contributor), Spiniello, C. (Contributor), Napolitano, N. R. (Contributor), D'Ago, G. (Contributor), Barbera, F. L. (Contributor), Getman, F. (Contributor), Roy, N. (Contributor), Raj, M. A. (Contributor), Radovich, M. (Contributor), Brescia, M. (Contributor), Cavuoti, S. (Contributor), Koopmans, L. (Contributor), Kuijken, K. H. (Contributor), Longo, G. (Contributor) & Petrillo, E. (Contributor), Strasbourg Astronomical Data Center, 13-Oct-2021
DOI: 10.26093/cds/vizier.18930004, https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/893/4
Dataset
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Sloan lens ACS survey. V.
Bolton, A. S. (Contributor), Burles, S. (Contributor), Koopmans, L. (Contributor), Treu, T. (Contributor), Gavazzi, R. (Contributor), Moustakas, L. A. (Contributor), Wayth, R. (Contributor) & Schlegel, D. J. (Contributor), University of Groningen, 20-Oct-2009
DOI: 10.26093/cds/vizier.16820964
Dataset
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The Sloan Lens ACS (SLACS) Survey. IX.
Auger, M. W. (Contributor), Treu, T. (Contributor), Bolton, A. S. (Contributor), Gavazzi, R. (Contributor), Koopmans, L. (Contributor), Marshall, P. J. (Contributor), Bundy, K. (Contributor) & Moustakas, L. A. (Contributor), Strasbourg Astronomical Data Center, 2-Jan-2012
DOI: 10.26093/cds/vizier.17051099, https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/705/1099
Dataset