High-definition imaging of a filamentary connection between a close quasar pair at z = 3

Davide Tornotti; Michele Fumagalli; Matteo Fossati; Alejandro Benitez-Llambay; David Izquierdo-Villalba; Andrea Travascio; Fabrizio Arrigoni Battaia; Sebastiano Cantalupo; Alexander Beckett; Silvia Bonoli; Pratika Dayal; Valentina D’Odorico; Rajeshwari Dutta; Elisabeta Lusso; Celine Peroux; Marc Rafelski; Mitchell Revalski; Daniele Spinoso; Mark Swinbank

doi:10.1038/s41550-024-02463-w

High-definition imaging of a filamentary connection between a close quasar pair at z = 3

Davide Tornotti^*, Michele Fumagalli^*, Matteo Fossati, Alejandro Benitez-Llambay, David Izquierdo-Villalba, Andrea Travascio, Fabrizio Arrigoni Battaia, Sebastiano Cantalupo, Alexander Beckett, Silvia Bonoli, Pratika Dayal, Valentina D’Odorico, Rajeshwari Dutta, Elisabeta Lusso, Celine Peroux, Marc Rafelski, Mitchell Revalski, Daniele Spinoso, Mark Swinbank

^*Corresponding author for this work

Astronomy

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

Abstract

Filaments connecting haloes are a long-standing prediction of cold-dark-matter theories. Here we present a detection of the cosmic web emission connecting two quasar-host galaxies at redshift z ≈ 3.22 in the MUSE Ultra Deep Field (MUDF), observed with the Multi Unit Spectroscopic Explorer (MUSE) instrument. The very deep observations unlock a high-definition view of the filament morphology, a measure of the transition radius between the intergalactic and circumgalactic medium, and the characterization of the surface brightness profiles along the filament and in the transverse direction. Through systematic comparisons with simulations, we validate the filaments’ typical density predicted in the current cold-dark-matter model. Our analysis of the MUDF, an excellent laboratory for quantitatively studying filaments in emission, opens a new avenue to constrain the physical properties of the cosmic web and to trace the distribution of dark matter on large scales.

Original language	English
Article number	2
Journal	Nature Astronomy
DOIs	https://doi.org/10.1038/s41550-024-02463-w
Publication status	Accepted/In press - 2025

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Tornotti, D., Fumagalli, M., Fossati, M., Benitez-Llambay, A., Izquierdo-Villalba, D., Travascio, A., Arrigoni Battaia, F., Cantalupo, S., Beckett, A., Bonoli, S., Dayal, P., D’Odorico, V., Dutta, R., Lusso, E., Peroux, C., Rafelski, M., Revalski, M., Spinoso, D., & Swinbank, M. (Accepted/In press). High-definition imaging of a filamentary connection between a close quasar pair at z = 3. Nature Astronomy, Article 2. https://doi.org/10.1038/s41550-024-02463-w

@article{6d32c8e77443467f8374f2be664ab23f,

title = "High-definition imaging of a filamentary connection between a close quasar pair at z = 3",

abstract = "Filaments connecting haloes are a long-standing prediction of cold-dark-matter theories. Here we present a detection of the cosmic web emission connecting two quasar-host galaxies at redshift z ≈ 3.22 in the MUSE Ultra Deep Field (MUDF), observed with the Multi Unit Spectroscopic Explorer (MUSE) instrument. The very deep observations unlock a high-definition view of the filament morphology, a measure of the transition radius between the intergalactic and circumgalactic medium, and the characterization of the surface brightness profiles along the filament and in the transverse direction. Through systematic comparisons with simulations, we validate the filaments{\textquoteright} typical density predicted in the current cold-dark-matter model. Our analysis of the MUDF, an excellent laboratory for quantitatively studying filaments in emission, opens a new avenue to constrain the physical properties of the cosmic web and to trace the distribution of dark matter on large scales.",

author = "Davide Tornotti and Michele Fumagalli and Matteo Fossati and Alejandro Benitez-Llambay and David Izquierdo-Villalba and Andrea Travascio and {Arrigoni Battaia}, Fabrizio and Sebastiano Cantalupo and Alexander Beckett and Silvia Bonoli and Pratika Dayal and Valentina D{\textquoteright}Odorico and Rajeshwari Dutta and Elisabeta Lusso and Celine Peroux and Marc Rafelski and Mitchell Revalski and Daniele Spinoso and Mark Swinbank",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive licence to Springer Nature Limited 2025.",

year = "2025",

doi = "10.1038/s41550-024-02463-w",

language = "English",

journal = "Nature Astronomy",

issn = "2397-3366",

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Tornotti, D, Fumagalli, M, Fossati, M, Benitez-Llambay, A, Izquierdo-Villalba, D, Travascio, A, Arrigoni Battaia, F, Cantalupo, S, Beckett, A, Bonoli, S, Dayal, P, D’Odorico, V, Dutta, R, Lusso, E, Peroux, C, Rafelski, M, Revalski, M, Spinoso, D & Swinbank, M 2025, 'High-definition imaging of a filamentary connection between a close quasar pair at z = 3', Nature Astronomy. https://doi.org/10.1038/s41550-024-02463-w

TY - JOUR

T1 - High-definition imaging of a filamentary connection between a close quasar pair at z = 3

AU - Tornotti, Davide

AU - Fumagalli, Michele

AU - Fossati, Matteo

AU - Benitez-Llambay, Alejandro

AU - Izquierdo-Villalba, David

AU - Travascio, Andrea

AU - Arrigoni Battaia, Fabrizio

AU - Cantalupo, Sebastiano

AU - Beckett, Alexander

AU - Bonoli, Silvia

AU - Dayal, Pratika

AU - D’Odorico, Valentina

AU - Dutta, Rajeshwari

AU - Lusso, Elisabeta

AU - Peroux, Celine

AU - Rafelski, Marc

AU - Revalski, Mitchell

AU - Spinoso, Daniele

AU - Swinbank, Mark

PY - 2025

Y1 - 2025

N2 - Filaments connecting haloes are a long-standing prediction of cold-dark-matter theories. Here we present a detection of the cosmic web emission connecting two quasar-host galaxies at redshift z ≈ 3.22 in the MUSE Ultra Deep Field (MUDF), observed with the Multi Unit Spectroscopic Explorer (MUSE) instrument. The very deep observations unlock a high-definition view of the filament morphology, a measure of the transition radius between the intergalactic and circumgalactic medium, and the characterization of the surface brightness profiles along the filament and in the transverse direction. Through systematic comparisons with simulations, we validate the filaments’ typical density predicted in the current cold-dark-matter model. Our analysis of the MUDF, an excellent laboratory for quantitatively studying filaments in emission, opens a new avenue to constrain the physical properties of the cosmic web and to trace the distribution of dark matter on large scales.

AB - Filaments connecting haloes are a long-standing prediction of cold-dark-matter theories. Here we present a detection of the cosmic web emission connecting two quasar-host galaxies at redshift z ≈ 3.22 in the MUSE Ultra Deep Field (MUDF), observed with the Multi Unit Spectroscopic Explorer (MUSE) instrument. The very deep observations unlock a high-definition view of the filament morphology, a measure of the transition radius between the intergalactic and circumgalactic medium, and the characterization of the surface brightness profiles along the filament and in the transverse direction. Through systematic comparisons with simulations, we validate the filaments’ typical density predicted in the current cold-dark-matter model. Our analysis of the MUDF, an excellent laboratory for quantitatively studying filaments in emission, opens a new avenue to constrain the physical properties of the cosmic web and to trace the distribution of dark matter on large scales.

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DO - 10.1038/s41550-024-02463-w

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SN - 2397-3366

JO - Nature Astronomy

JF - Nature Astronomy

M1 - 2

ER -

High-definition imaging of a filamentary connection between a close quasar pair at z = 3

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