J/ApJ/790/76ivo://CDS.VizieR/J/ApJ/790/76doi:10.26093/cds/vizier.17900076CDSSchulz E.2017-10-02T11:46:47Z2017-03-27T12:04:05ZCDS support team

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

cds-question@unistra.frgalaxiesultraviolet-photometryinfrared-photometryWe report the results of a survey of the region within 40 arcmin of NGC 891, a nearby nearly perfectly edge-on spiral galaxy. Candidate "non-stars" with diameters greater than 15 arcsec were selected from the GSC 2.3.2 catalog and cross-comparison of observations in several bands using archived GALEX, DSS2, WISE, and Two Micron All Sky Survey images identified contaminating stars, artifacts, and background galaxies, all of which were excluded. The resulting 71 galaxies, many of which were previously uncataloged, comprise a size-limited survey of the region. A majority of the galaxies are in the background of NGC 891 and are for the most part members of the A347 cluster at a distance of about 75 Mpc. The new finds approximately double the known membership of A347, previously thought to be relatively sparse. We identify a total of seven dwarf galaxies, most of which are new discoveries. The newly discovered dwarf galaxies are dim and gas-poor and may be associated with the previously observed arcs of red giant branch halo stars in the halo and the prominent H I filament and the lopsided features in the disk of NGC 891. Several of the dwarfs show signs of disruption, consistent with being remnants of an ancient collision.2014ApJ...790...76Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/790/76CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)I/305 : The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)II/312 : GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011)II/311 : WISE All-Sky Data Release (Cutri+ 2012)J/ApJ/619/193 : Catalog of nearby cluster galaxy photometry (McIntosh+, 2005)J/A+A/542/A39 : NIR photometry in 10 nearby spiral galaxies (Grosboel+, 2012)J/ApJS/199/36 : H{alpha} survey of nearby clusters of galaxies (Sakai+, 2012)J/A+A/575/A17 : NGC 891 Herschel PACS and SPIRE spectroscopy (Hughes+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/790/76https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/790/76http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/790/76https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/790/76https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/790/76http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/790/76GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/790/76/table12 (Galaxies near NGC 891 general parameters (table 1)and GALEX and WISE magnitudes (table 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/790/76/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/790/76/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/790/76/table12?GETtext/xml+votable180.050000true36.17542.831670.0055555555555555566/2409 2411 2412 24148.157980699529898e-21 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/790/76?format=asciiUVInfrareddefaultJ/ApJ/790/76/table12Galaxies near NGC 891 general parameters (table 1)and GALEX and WISE magnitudes (table 2)IDIdentifier numbermeta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGSC2.3GSC 2.3.2 ID (Cat. I/305)meta.id;meta.maincharn_GSC2.3[c] Note on GSC2.3 (1)meta.notecharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainDistDistance from NGC 891arcminpos.angDistancefloatAIDMost commonly used alternate IDmeta.id;instr.setupcharSID? ID number if listed in the Sakai et al. catalog (2012, J/ApJS/199/36) [SKM2012] N891 NN in Simbadmeta.idintnullable2MX[Y] Indicates if the galaxy is listed in the 2MASX catalog (Jarrett et al. 2000AJ....119.2498J, Cat. VII/233)meta.codecharRV? Radial velocitykm/sphys.veloc;pos.heliocentricintnullableRFmag? Apparent RF magnitude (2)magphot.mag;em.opt.RfloatnullableBJmag? Apparent BJ magnitude (2)magphot.mag;em.opt.BfloatnullableINmag? Apparent IN magnitude (2)magphot.magfloatnullablen_INmag[b] Note on INmag (3)meta.notecharRadSemi-major axis (2)arcsecphys.angSize;srcfloatNIRmuCalculated NIR surface brightnessmag.arcsec**-2phot.mag.sb;em.IR.NIRfloatn_NIRmu[b] Note on NIRmu (3)meta.notecharFore[F-] F indicates that this is a foreground dwarfmeta.codecharFUVmag? GALEX FUV apparent magnitudemagphot.mag;em.UVfloatnullableNUVmagGALEX NUV apparent magnitudemagphot.mag;em.UVfloatW1magWISE W1 apparent magnitudemagphot.mag;em.IR.3-4umfloatW2magWISE W2 apparent magnitudemagphot.mag;em.IR.4-8umfloatW3mag? WISE W3 apparent magnitudemagphot.flux.density;em.IR.8-15umfloatnullableW4mag? WISE W4 apparent magnitudemagphot.flux.density;em.IR.15-30umfloatnullableW1MagaWISE W1 absolute magnitude for case a (1)magphys.magAbsfloatW1Magb? WISE W1 absolute magnitude for case b (2)magphys.magAbsfloatnullableW1LaWISE W1 luminosity for case a (1)solLumphys.luminosity;em.IRdoubleW1Lb? WISE W1 luminosity for case b (2)solLumphys.luminosity;em.IRdoublenullableSimbadSimbad column added by the CDSmeta.ref.urlchar