J/MNRAS/415/1883ivo://CDS.VizieR/J/MNRAS/415/1883doi:10.26093/cds/vizier.74151883CDSDavies J.I.Auld R.Burns L.Minchin R.Momjian E.Schneider S.,Smith M.Taylor R.Van Driel W.2024-07-14T20:15:37Z2012-04-18T15:40:57ZCDS support team

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

cds-question@unistra.frsurveysgalaxy-clustersradio-sourcesh-i-line-emissionIn this paper we describe results from the Arecibo Galaxy Environments Survey (AGES). The survey reaches column densities of ~3x10^18^cm^-2^ and masses of ~10^7^M_{sun}_, over individual regions of order 10deg^2^ in size, out to a maximum velocity of 18000km/s. Each surveyed region is centred on a nearby galaxy, group or cluster, in this instance the NGC 7448 group. Galaxy interactions in the NGC 7448 group reveal themselves through the identification of tidal tails and bridges. We find ~2.5 times more atomic gas in the intergalactic medium than in the group galaxies. We identify five new dwarf galaxies, two of which appear to be members of the NGC 7448 group. This is too small, by roughly an order of magnitude, a number of dwarf galaxies to reconcile observation with theoretical predictions of galaxy formation models. If they had observed this region of the sky in previous wide-area blind HI surveys, HIPASS and ALFALFA, they would have detected only 5 and 43 per cent, respectively, of the galaxies we have detected, missing a large fraction of the atomic gas in this volume.2011MNRAS.415.1883Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/415/1883CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/383/1519 : Abell 1367 HI sources from AGES (Cortese+, 2008)J/AJ/140/1093 : NGC7332/9 and NGC 1156 HI sources from AGES (Minchin+, 2010)http://www.naic.edu/~ages/public_data.html : AGES databaseshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/415/1883https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/415/1883http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/415/1883https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/415/1883https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/415/1883http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/415/1883GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/415/1883/table4 (The HI properties of galaxies detected in the AGES NGC 7448 data cube)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/415/1883/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/415/1883/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/415/1883/table4?GETtext/xml+votable180.050000true342.41708315.095250.0055555555555555565/5002-5003 5024 6/19327 19415 20003-20004 20006-20007 20024 20026 20100-201029.459244390355668e-25 9.459244390355668e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/415/1883?format=asciiRadiodefaultJ/MNRAS/415/1883/table4The HI properties of galaxies detected in the AGES NGC 7448 data cuberecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAGESAGES designation (JHHMMSS+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVelRecession velocitykm/sspect.dopplerVelocintW50Velocity width at 50 per cent peak heightkm/spos.cartesian.z;stat.maxintW20Velocity width at 20 per cent peak heightkm/spos.cartesian.z;stat.maxintFpeakPeak flux density at 21cmJyphot.fluxfloatFtotTotal flux at 21cmJy.km/sphot.fluxfloat