The Final 21-cm Cosmology Frontier

Project Information

CODEX

Grant agreement ID: 884760

DOI

10.3030/884760

EC signature date 3 June 2020

Start date 1 December 2020

End date 30 November 2026

Funded under

• EXCELLENT SCIENCE - European Research Council (ERC)

Total cost

€ 3 499 965,00

EU contribution

€ 3 499 965,00

Coordinated by

RIJKSUNIVERSITEIT GRONINGEN
Netherlands

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Deliverables

Open Research Data Pilot (1)

Data Management plan

Of order 510 petabyte of data are storedcollected by the end of the ERC program on various archival systems either related to the instrument raw data or to the ERC program calibratedprocessedsimulated data All data is available on besteffort basis after a clear plan and resources how to handle these data and its analysis is presented and deemed feasible by the PI Resources to receive and transport these huge data volumes will have to be provided by the requesting party

Publications

Peer reviewed articles (20)

A novel radio imaging method for physical spectral index modelling

Author(s): E Ceccotti, A R Offringa, L V E Koopmans, R Timmerman, S A Brackenhoff, B K Gehlot, F G Mertens, S Munshi, V N Pandey, R J van Weeren, S Yatawatta, S Zaroubi
Published in: Monthly Notices of the Royal Astronomical Society, Issue 525, 2023, Page(s) 3946-3962, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stad2465

Assessing the impact of two independent direction-dependent calibration algorithms on the LOFAR 21-cm signal power spectrum

Author(s): 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.
Published in: A&A, 2022, ISSN 1432-0746
Publisher: EDP Science
DOI: 10.1051/0004-6361/202244316

Transient RFI environment of LOFAR-LBA at 72–75 MHz

Author(s): B. K. Gehlot, L. V. E. Koopmans, S. A. Brackenhoff, E. Ceccotti, S. Ghosh, C. Höfer, F. G. Mertens, M. Mevius, S. Munshi, A. R. Offringa, V. N. Pandey, A. Rowlinson, A. Shulevski, R. A. M. J. Wijers, S. Yatawatta, S. Zaroubi
Published in: Astronomy & Astrophysics, Issue 681, 2024, Page(s) A71, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202346376

Probing the intergalactic medium during the Epoch of Reionization using 21 cm signal power spectra

Author(s): R. Ghara, A. K. Shaw, S. Zaroubi, B. Ciardi, G. Mellema, L. V. E. Koopmans, A. Acharya, M. Choudhury, S. K. Giri, I. T. Iliev, Q. Ma, F. G. Mertens
Published in: Astronomy & Astrophysics, Issue 687, 2024, Page(s) A252, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202449444

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

Author(s): Léon V. E. Koopmans, Rennan Barkana, Mark Bentum, Gianni Bernardi, Albert-Jan Boonstra, Judd Bowman, Jack Burns, Xuelei Chen, Abhirup Datta, Heino Falcke, Anastasia Fialkov, Bharat Gehlot, Leonid Gurvits, Vibor Jelić, Marc Klein-Wolt, Joseph Lazio, Daan Meerburg, Garrelt Mellema, Florent Mertens, Andrei Mesinger, André Offringa, Jonathan Pritchard, Benoit Semelin, Ravi Subrahmanyan, Joseph Silk
Published in: Experimental Astronomy, Issue 51, 2023, Page(s) 1641-1676, ISSN 0922-6435
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10686-021-09743-7

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

Author(s): Maaijke Mevius; F. Mertens; F. Mertens; Léon V. E. Koopmans; A. R. Offringa; Sarod Yatawatta; Michiel A. Brentjens; Emma Chapman; Benedetta Ciardi; H. Gan; B. K. Gehlot; Raghunath Ghara; Raghunath Ghara; Abhik Ghosh; Sambit K. Giri; Ilian T. Iliev; Garrelt Mellema; V. N. Pandey; Saleem Zaroubi; Saleem Zaroubi; Saleem Zaroubi
Published in: MNRAS, Issue 1, 2022, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stab3233

The Dark Ages' 21-cm trispectrum

Author(s): Thomas Flöss, Tim de Wild, P. Daniel Meerburg, Léon V.E. Koopmans
Published in: Journal of Cosmology and Astroparticle Physics, Issue 2022, 2022, Page(s) 020, ISSN 1475-7516
Publisher: Institute of Physics
DOI: 10.1088/1475-7516/2022/06/020

Characterization of the AARTFAAC-12 aperture array: radio source counts at 42 and 61 MHz

Author(s): A Shulevski, T M O Franzen, W L Williams, T Vernstrom, B K Gehlot, M Kuiack, R A M J Wijers
Published in: Monthly Notices of the Royal Astronomical Society, Issue 513, 2022, Page(s) 1036-1045, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stac881

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

Author(s): 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.
Published in: A&A, 2022, ISSN 1432-0746
Publisher: EDP Sciences
DOI: 10.1051/0004-6361/202142939

POLAR - I: linking the 21-cm signal from the epoch of reionization to galaxy formation

Author(s): Qing-Bo Ma, Raghunath Ghara, Benedetta Ciardi, Ilian T Iliev, Léon V E Koopmans, Garrelt Mellema, Rajesh Mondal, Saleem Zaroubi
Published in: MNRAS, 2023, ISSN 1365-2966
Publisher: Oxford Academic
DOI: 10.1093/mnras/stad1203

Accurate modelling of the Lyman-α coupling for the 21-cm signal, observability with NenuFAR, and SKA

Author(s): Semelin, B. ; Mériot, R. ; Mertens, F.; Koopmans, L. V. E. ; Aubert, D.; Barkana, R.; Fialkov, A. ; Munshi, S.; Ocvirk, P.
Published in: A&A, 2023, ISSN 1432-0746
Publisher: EDP Sciences
DOI: 10.1051/0004-6361/202244722

Measurements of one-point statistics in 21-cm intensity maps via foreground avoidance strategy

Author(s): Piyanat Kittiwisit, Judd D Bowman, Steven G Murray, Bharat K Gehlot, Daniel C Jacobs, Adam P Beardsley
Published in: Monthly Notices of the Royal Astronomical Society, Issue 517, 2023, Page(s) 2138-2150, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stac2826

The impact of lossy data compression on the power spectrum of the high-redshift 21 cm signal with LOFAR

Author(s): J. K. Chege, L. V. E. Koopmans, A. R. Offringa, B. K. Gehlot, S. A. Brackenhoff, E. Ceccotti, S. Ghosh, C. Höfer, F. G. Mertens, M. Mevius, S. Munshi
Published in: Astronomy & Astrophysics, Issue 692, 2024, Page(s) A211, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202451367

First upper limits on the 21 cm signal power spectrum from cosmic dawn from one night of observations with NenuFAR

Author(s): S. Munshi, F. G. Mertens, L. V. E. Koopmans, A. R. Offringa, B. Semelin, D. Aubert, R. Barkana, A. Bracco, S. A. Brackenhoff, B. Cecconi, E. Ceccotti, S. Corbel, A. Fialkov, B. K. Gehlot, R. Ghara, J. N. Girard, J. M. Grießmeier, C. Höfer, I. Hothi, R. Mériot, M. Mevius, P. Ocvirk, A. K. Shaw, G. Theureau, S. Yatawatta, P. Zarka, S. Zaroubi
Published in: Astronomy & Astrophysics, Issue 681, 2024, Page(s) A62, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202348329

Revised LOFAR upper limits on the 21-cm signal power spectrum at <i>z</i> ≈ 9.1 using machine learning and gaussian process regression

Author(s): Anshuman Acharya, Florent Mertens, Benedetta Ciardi, Raghunath Ghara, Léon V E Koopmans, Saleem Zaroubi
Published in: Monthly Notices of the Royal Astronomical Society: Letters, Issue 534, 2024, Page(s) L30-L34, ISSN 1745-3933
Publisher: Blackwell Publishing
DOI: 10.1093/mnrasl/slae078

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

Author(s): Anchal Saxena, P Daniel Meerburg, Eloy de Lera Acedo, Will Handley, Léon V E Koopmans
Published in: MNRAS, 2023, ISSN 1365-2966
Publisher: Oxford Academic
DOI: 10.1093/mnras/stad1047

Ionospheric contributions to the excess power in high-redshift 21-cm power-spectrum observations with LOFAR

Author(s): S A Brackenhoff, M Mevius, L V E Koopmans, A Offringa, E Ceccotti, J K Chege, B K Gehlot, S Ghosh, C Höfer, F G Mertens, S Munshi, S Zaroubi
Published in: Monthly Notices of the Royal Astronomical Society, Issue 533, 2024, Page(s) 632-656, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stae1856

Beyond the horizon: Quantifying the full sky foreground wedge in the cylindrical power spectrum

Author(s): S. Munshi, F. G. Mertens, L. V. E. Koopmans, A. R. Offringa, E. Ceccotti, S. A. Brackenhoff, J. K. Chege, B. K. Gehlot, S. Ghosh, C. Höfer, M. Mevius
Published in: Astronomy &amp; Astrophysics, Issue 693, 2025, Page(s) A276, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202451181

Studying the multifrequency angular power spectrum of the cosmic dawn 21-cm signal

Author(s): Abinash Kumar Shaw, Raghunath Ghara, Saleem Zaroubi, Rajesh Mondal, Garrelt Mellema, Florent Mertens, Léon V E Koopmans, Benoît Semelin
Published in: MNRAS, 2023, ISSN 1365-2966
Publisher: Oxford Academic
DOI: 10.1093/mnras/stad1114

Deeper multi-redshift upper limits on the epoch of reionisation 21 cm signal power spectrum from LOFAR between <i>z</i> = 8.3 and <i>z</i> = 10.1

Author(s): F. G. Mertens, M. Mevius, L. V. E. Koopmans, A. R. Offringa, S. Zaroubi, A. Acharya, S. A. Brackenhoff, E. Ceccotti, E. Chapman, K. Chege, B. Ciardi, R. Ghara, S. Ghosh, S. K. Giri, I. Hothi, C. Höfer, I. T. Iliev, V. Jelić, Q. Ma, G. Mellema, S. Munshi, V. N. Pandey, S. Yatawatta
Published in: Astronomy &amp; Astrophysics, Issue 698, 2025, Page(s) A186, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202554158