J/MNRAS/490/1451ivo://CDS.VizieR/J/MNRAS/490/1451doi:10.26093/cds/vizier.74901451CDSFossati M.Fumagalli M.Lofthouse E.K.D'Odorico V.Lusso E.,Cantalupo S.Cooke R.J.Cristiani S.Haardt F.Morris S.L.Peroux C.,Prichard L.J.Rafelski M.Smail I.Theuns T.2024-08-20T20:13:31Z2023-03-21T12:28:42ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesvisible-astronomyredshiftedWe 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 ~150h on-source of integral field optical spectroscopy in a 1.5x1.2arcmin^2^ region which hosts several astrophysical structures along the line of sight, including two bright z~3.2 quasars with close separation (~500kpc). 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_{sun}_)~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 ~480kpc. 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 MgII absorbers that we detect.2019MNRAS.490.1451Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/490/1451CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/490/1451https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/490/1451http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/490/1451https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/490/1451https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/490/1451http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/490/1451GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/490/1451/table1 (The properties of the continuum sources in the MUDF extracted by SEXTRACTOR with S/N>3)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/490/1451/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/490/1451/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/490/1451/table1?GETtext/xml+votable180.050000true325.60878-44.342040.0055555555555555566/46651https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/490/1451?format=asciiOpticaldefaultJ/MNRAS/490/1451/table1The properties of the continuum sources in the MUDF extracted by SEXTRACTOR with S/N>3SimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/250] Internal source identifiermeta.idintNameSource name (MUDFJHHMMSS.ss-DDMMSS.s)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainMUSEmagMUSE white-light magnitude of the sourcemagphot.mag;em.optfloate_MUSEmagError on MUSEmagmagstat.error;phot.magfloatz? Redshift obtained using MARZsrc.redshiftfloatnullableConfidence[1/6] Redshift confidence class (1)meta.code.qualintlogM*? Logarithm of the stellar masslog(solMass)phys.massfloatnullable