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Clerc, N, Kirkpatrick, CC, Finoguenov, A, Capasso, R, Comparat, J, Damsted, S, Furnell, K, Kukkola, AE, Ider Chitham, J, Merloni, A, Salvato, M, Gueguen, A, Dwelly, T, Collins, CA, Saro, A, Erfanianfar, G, Schneider, DP, Brownstein, J, Mamon, GA, Padilla, N , Jullo, E and Bizyaev, D (2020) SPIDERS: Overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release. Monthly Notices of the Royal Astronomical Society, 497 (3). pp. 3976-3992. ISSN 0035-8711
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SPIDERS Overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release.pdf - Published Version Download (10MB) | Preview |
Abstract
SPIDERS (The SPectroscopic IDentification of eROSITA Sources) is a large spectroscopic programme for X-ray selected galaxy clusters as part of the Sloan Digital Sky Survey-IV (SDSS-IV). We describe the final data set in the context of SDSS Data Release 16 (DR16): The survey overall characteristics, final targeting strategies, achieved completeness, and spectral quality, with special emphasis on its use as a galaxy cluster sample for cosmology applications. SPIDERS now consists of about 27 000 new optical spectra of galaxies selected within 4000 photometric red sequences, each associated with an X-ray source. The excellent spectrograph efficiency and a robust analysis pipeline yield a spectroscopic redshift measurement success rate exceeding 98 per cent, with a median velocity accuracy of 20 km s-1 (at z = 0.2). Using the catalogue of 2740 X-ray galaxy clusters confirmed with DR16 spectroscopy, we reveal the 3D map of the galaxy cluster distribution in the observable Universe up to z ∼0.6. We highlight the homogeneity of the member galaxy spectra among distinct regions of the galaxy cluster phase space. Aided by accurate spectroscopic redshifts and by a model of the sample selection effects, we compute the galaxy cluster X-ray luminosity function and we present its lack of evolution up to z = 0.6. Finally we discuss the prospects of forthcoming large multiplexed spectroscopic programmes dedicated to follow up the next generation of all-sky X-ray source catalogues. © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.
| Item Type: | Article |
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| Additional Information: | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2020 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
| Uncontrolled Keywords: | 0201 Astronomical and Space Sciences |
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
| Divisions: | Astrophysics Research Institute |
| Publisher: | Oxford University Press |
| Date Deposited: | 05 Jan 2021 11:14 |
| Last Modified: | 04 Sep 2021 06:11 |
| DOI or ID number: | 10.1093/mnras/staa2066 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/14213 |
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