J/ApJ/788/77ivo://CDS.VizieR/J/ApJ/788/77doi:10.26093/cds/vizier.17880077CDSHolwerda B.W.Trenti M.Clarkson W.Sahu K.Bradley L.Stiavelli M.,Pirzkal N.De Marchi G.Andersen M.Bouwens R.Ryan R.2018-01-23T06:30:52Z2017-07-17T08:01:13ZCDS support team

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

cds-question@unistra.frmilky-way-galaxydwarf-starshst-photometryinfrared-photometrystellar-distanceWe present a tally of Milky Way late-type dwarf stars in 68 Wide Field Camera 3 (WFC3) pure-parallel fields (227 arcmin^2^) from the Brightest of Reionizing Galaxies survey for high-redshift galaxies. Using spectroscopically identified M-dwarfs in two public surveys, the Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey and the Early Release Science mosaics, we identify a morphological selection criterion using the half-light radius (r_50_), a near-infrared J-H, G-J color region where M-dwarfs are found, and a V-J relation with M-dwarf subtype. We apply this morphological selection of stellar objects, color-color selection of M-dwarfs, and optical-near-infrared color subtyping to compile a catalog of 274 M-dwarfs belonging to the disk of the Milky Way with a limiting magnitude of m_F125W_<24(AB). Based on the M-dwarf statistics, we conclude that (1) the previously identified north-south discrepancy in M-dwarf numbers persists in our sample; there are more M-dwarfs in the northern fields on average than in southern ones, (2) the Milky Way's single disk scale-height for M-dwarfs is 0.3-4 kpc, depending on subtype, (3) the scale-height depends on M-dwarf subtype with early types (M0-4) high scale-height (z_0_=3-4 kpc) and later types M5 and above in the thin disk (z_0_=0.3-0.5 kpc), (4) a second component is visible in the vertical distribution, with a different, much higher scale-height in the southern fields compared to the northern ones. We report the M-dwarf component of the Sagittarius stream in one of our fields with 11 confirmed M-dwarfs, seven of which are at the stream's distance. In addition to the M-dwarf catalog, we report the discovery of 1 T-dwarfs and 30 L-dwarfs from their near-infrared colors. The dwarf scale-height and the relative low incidence in our fields of L- and T-dwarfs in these fields makes it unlikely that these stars will be interlopers in great numbers in color-selected samples of high-redshift galaxies. The relative ubiquity of M-dwarfs however will make them ideal tracers of Galactic halo substructure with EUCLID and reference stars for James Webb Space Telescope observations.2014ApJ...788...77Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/788/77CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/AJ/123/3409 : SDSS M, L, and T dwarfs (Hawley+, 2002)J/A+A/441/653 : 32 DENIS nearby red dwarfs (Crifo+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/788/77https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/788/77http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/788/77https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/788/77https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/788/77http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/788/77GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/788/77/table5 (The M-dwarfs Identified by PEARS in the ERS Mosaic)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/788/77/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/788/77/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/788/77/table5?GETtext/xml+votable180.050000true53.09302694-27.735838060.005555555555555556Cone search capability for table J/ApJ/788/77/dwarfs (L (table14), T (table15), M (table16) dwarfs identified in BoRG)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/788/77/dwarfs?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/788/77/dwarfs?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/788/77/dwarfs?GETtext/xml+votable180.050000true17.53724-2.409470.005555555555555556Cone search capability for table J/ApJ/788/77/table4 (The M-dwarfs Identified by PEARS in the CANDELS Field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/788/77/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/788/77/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/788/77/table4?GETtext/xml+votable180.050000true53.22007306-27.854046110.0055555555555555566/524 1074 4103 4821 4824 4961 5246 5274 5363 5437 5639 5773 5811 5817 5974 6020 6021 6081 6223 6235 6459 6620 7998 8282 8303 9457 9459 10654 10764 10940 11209 11398 11435 12047 12380 12644 16947 17990 18770 21126 25132 25194 26024 26214 26859 26973 27115 27305 27719 28583 28589 31663 33795 33796 33801 33950 35180 35935 36442 37382 38916 46076 46418 46647 489651.1796835550914393e-19 3.999628114029321e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/788/77?format=asciiInfrareddefaultJ/ApJ/788/77/table5The M-dwarfs Identified by PEARS in the ERS MosaicrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification number, NNNNNN, [PBM2009] sNNNNNN in Simbadmeta.id;meta.mainintSpTypeSub M spectral typesrc.spTypefloatRAJ2000Rigth ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainF435WmagF435W magnitude (1)magphot.mag;em.opt.BfloatF606WmagF606W magnitude (1)magphot.mag;em.opt.RfloatF775WmagF775W magnitude (1)magphot.mag;em.opt.IfloatF850WmagF850W magnitude (1)magphot.mag;em.opt.IfloatF125WmagF125W magnitude (2)magphot.mag;em.IR.JfloatF160WmagF160W magnitude (2)magphot.mag;em.IR.HfloatSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/788/77/dwarfsL (table14), T (table15), M (table16) dwarfs identified in BoRGrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpTypeSpectral typesrc.spTypecharborgSource identifier (borg_HHMM+DDMM.NNNN.N)meta.id;meta.maincharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleF098MmagHST/WFC3 F098M filter magnitudemagphot.mag;em.IR.Jfloate_F098MmagUncertainty in F098Mmagmagstat.errorfloatF125WmagHST/WFC3 F125W filter magnitudemagphot.mag;em.IR.Jfloate_F125WmagUncertainty in F125Wmagmagstat.errorfloatF160WmagHST/WFC3 F160W filter magnitudemagphot.mag;em.IR.Hfloate_F160WmagUncertainty in F160Wmagmagstat.errorfloatF606WmagHST/WFC3 F606W filter magnitudemagphot.mag;em.opt.Rfloate_F606WmagUncertainty in F606Wmagmagstat.errorfloatMtype? M-dwarf type; see Equ. 4.meta.note;src.morph.typefloatnullablee_Mtype? Uncertainty in Mtypemeta.notefloatnullableDM? Distance modulusmagphot.mag.distModfloatnullableDist? Distancekpcpos.distance;pos.heliocentricfloatnullableZ? Milky Way scale heightkpcphys.sizefloatnullableRad[]? Galactic radiuskpcphys.size.radius;pos.galacticfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/788/77/table4The M-dwarfs Identified by PEARS in the CANDELS FieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification number, NNNNNN, [PBM2009] sNNNNNN in Simbadmeta.id;meta.mainintSpTypeSub M spectral typesrc.spTypefloatRAJ2000Rigth ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainF435WmagF435W magnitude (1)magphot.mag;em.opt.BfloatF606WmagF606W magnitude (1)magphot.mag;em.opt.RfloatF775WmagF775W magnitude (1)magphot.mag;em.opt.IfloatF850WmagF850W magnitude (1)magphot.mag;em.opt.IfloatF125WmagF125W magnitude (2)magphot.mag;em.IR.JfloatF160WmagF160W magnitude (2)magphot.mag;em.IR.HfloatSimbadSimbad column added by the CDSmeta.ref.urlchar