The MUSE Ultra Deep Field (MUDF). II. Survey design and the gaseous properties of galaxy groups at 0.5 < z < 1.5

被引：55

作者：

Fossati, M. ^{[1
,2
]}

Fumagalli, M. ^{[1
,2
,3
]}

Lofthouse, E. K. ^{[1
,2
]}

D'Odorico, V ^{[4
,5
]}

Lusso, E. ^{[6
,7
]}

Cantalupo, S. ^{[8
]}

Cooke, R. J. ^{[1
,2
]}

Cristiani, S. ^{[4
]}

Haardt, F. ^{[9
,10
]}

Morris, S. L. ^{[2
,11
]}

Peroux, C. ^{[12
,13
]}

Prichard, L. J. ^{[14
]}

Rafelski, M. ^{[14
,15
]}

Smail, I ^{[2
]}

Theuns, T. ^{[1
]}

机构：

[1] Univ Durham, Inst Computat Cosmol, South Rd, Durham DH1 3LE, England

[2] Univ Durham, Ctr Extragalact Astron, South Rd, Durham DH1 3LE, England

[3] Univ Milano Bicocca, Dipartimento Fis G Occhialini, Piazza Sci 3, I-20126 Milan, Italy

[4] INAF, Osservatorio Astron Trieste, Via GB Tiepolo 11, I-34143 Trieste, Italy

[5] Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy

[6] Univ Firenze, Dipartimento Fis & Astron, Via G Sansone 1, I-50019 Florence, Italy

[7] INAF, Osservatorio Astrofis Arcetri, I-50125 Florence, Italy

[8] Swiss Fed Inst Technol, Dept Phys, Wolgang Pauli Str 27, CH-8093 Zurich, Switzerland

[9] Univ Insubria, DiSAT, Via Valleggio 11, I-22100 Como, Italy

[10] INFN, Sez Milano Bicocca, Piazza Sci 3, I-20126 Milan, Italy

[11] Univ Durham, Ctr Adv Instrumentat, South Rd, Durham DH1 3LE, England

[12] ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[13] Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France

[14] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[15] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2019年 / 490卷 / 01期

基金：

瑞士国家科学基金会; 英国科学技术设施理事会; 欧洲研究理事会;

关键词：

galaxies: evolution; galaxies: groups: general; galaxies: high-redshift; galaxies: haloes; quasars: absorption lines; STELLAR POPULATION SYNTHESIS; LYMAN-ALPHA ABSORPTION; STAR-FORMING GALAXIES; SIMILAR-TO; INTERGALACTIC MEDIUM; REDSHIFT SURVEY; CROSS-CORRELATION; CLUSTER GALAXIES; FORMATION RATES; GAS ACCRETION;

D O I：

10.1093/mnras/stz2693

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 approximate to 150 h on-source of integral field optical spectroscopy in a 1.5 x 1.2 arcmin(2) region which hosts several astrophysical structures along the line of sight, including two bright z approximate to 3.2 quasars with close separation (approximate to 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(M-h/M-circle dot) approximate to 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 approximate to 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 ionized 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 Mg II absorbers that we detect.

引用

页码：1451 / 1469

页数：19

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The MUSE Ultra Deep Field (MUDF). II. Survey design and the gaseous properties of galaxy groups at 0.5 &lt; z &lt; 1.5

The MUSE Ultra Deep Field (MUDF). II. Survey design and the gaseous properties of galaxy groups at 0.5 < z < 1.5