The MUSE Ultra Deep Field (MUDF). II. Survey design and the gaseous properties of galaxy groups at 0.5 < z < 1.5
| Autor: | Ian Smail, Marc Rafelski, Emma K. Lofthouse, Elisabeta Lusso, Stefano Cristiani, Valentina D'Odorico, Celine Peroux, Simon L. Morris, Michele Fumagalli, L. J. Prichard, Sebastiano Cantalupo, Matteo Fossati, Francesco Haardt, Tom Theuns, Ryan Cooke |
|---|---|
| Přispěvatelé: | ITA, USA, GBR, FRA, DEU, CHE, Fossati, M, Fumagalli, M, Lofthouse, E, D'Odorico, V, Lusso, E, Cantalupo, S, Cooke, R, Cristiani, S, Haardt, F, Morris, S, Peroux, C, Prichard, L, Rafelski, M, Smail, I, Theuns, T, Durham University, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), European Southern Observatory (ESO) |
| Rok vydání: | 2019 |
| Předmět: |
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
FOS: Physical sciences Astrophysics Galaxies: groups: general Astrophysics::Cosmology and Extragalactic Astrophysics Galaxies: evolution Galaxies: haloes Galaxies: high-redshift Quasars: absorption lines 01 natural sciences Galaxy group 0103 physical sciences Galaxies: haloe 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics Physics Very Large Telescope Line-of-sight 010308 nuclear & particles physics Astronomy and Astrophysics Quasar Hubble Ultra-Deep Field Multi Unit Spectroscopic Explorer Astrophysics - Astrophysics of Galaxies Galaxy Redshift Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) |
| Zdroj: | Monthly Notices of the Royal Astronomical Society Monthly Notices of the Royal Astronomical Society, 2019, 490 (1), pp.1451-1469. ⟨10.1093/mnras/stz2693⟩ Monthly notices of the Royal Astronomical Society, 2019, Vol.490(1), pp.1451-1469 [Peer Reviewed Journal] |
| ISSN: | 0035-8711 1365-2966 |
| DOI: | 10.48550/arxiv.1909.04672 |
| Popis: | We present the goals, design, and first results of the MUSE Ultra Deep Field (MUDF) survey, a large programme using the Multi Unit Spectroscopic Explorer (MUSE) instrument at the ESO Very Large Telescope. The MUDF survey is collecting ~ 150 hours on-source of integral field optical spectroscopy in a 1.5 x 1.2 square arcmin region which hosts several astrophysical structures along the line of sight, including two bright z ~ 3.2 quasars with close separation (~ 500 kpc). Following the description of the data reduction procedures, we present the analysis of the galaxy environment and gaseous properties of seven groups detected at redshifts 0.5 < z < 1.5, spanning a large dynamic range in halo mass, log(Mh/Msun) ~ 11 - 13.5. For four of the groups, we find associated MgII absorbers tracing cool gas in high-resolution spectroscopy of the two quasars, including one case of correlated absorption in both sightlines at distance ~ 480 kpc. The absorption strength associated with the groups is higher than what has been reported for more isolated galaxies of comparable mass and impact parameters. We do not find evidence for widespread cool gas giving rise to strong absorption within these groups. Combining these results with the distribution of neutral and ionised gas seen in emission in lower-redshift groups, we conclude that gravitational interactions in the group environment strip gas from the galaxy haloes into the intragroup medium, boosting the cross section of cool gas and leading to the high fraction of strong MgII absorbers that we detect. 20 pages, 12 figures, 4 tables, Accepted for publication in MNRAS |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|