J/ApJ/920/84ivo://CDS.VizieR/J/ApJ/920/84doi:10.26093/cds/vizier.19200084CDSLi S.,Riess A.G.,Busch M.P.,Casertano S.,Macri L.M.,Yuan W.2024-05-29T08:06:44Z2023-05-12T07:00:11ZCDS support team

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

cds-question@unistra.frvariable-starsinfrared-photometryvisible-astronomyWe present period-luminosity relations (PLRs) for 55 Cepheids in M31 with periods ranging from 4 to 78 days observed with the Hubble Space Telescope using the same three-band photometric system recently used to calibrate their luminosities. Images were taken with the Wide Field Camera 3 in two optical filters (F555W and F814W) and one near-infrared filter (F160W) using the Drift and Shift (DASH) mode of operation to significantly reduce overheads and observe widely separated Cepheids in a single orbit. We include additional F160W epochs for each Cepheid from the Panchromatic Hubble Andromeda Treasury and use light curves from the Panoramic Survey Telescope and Rapid Response System of the Andromeda galaxy project to determine mean magnitudes. Combined with a 1.28% absolute calibration of Cepheid PLRs in the Large Magellanic Cloud from Riess et al. in the same three filters, we find a distance modulus to M31 of {mu}0=24.407{+/-}0.032, corresponding to 761{+/-}11kpc and 1.49% uncertainty including all error sources, the most precise determination of its distance to date. We compare our results to past measurements using Cepheids and the tip of the red giant branch. This study also provides the groundwork for turning M31 into a precision anchor galaxy in the cosmic distance ladder to measure the Hubble constant together with efforts to measure a fully geometric distance to M31.2021ApJ...920...84Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/920/84CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/509/A70 : Study of an eclipsing binary in M31 (Vilardell+, 2010)J/ApJ/730/119 : HST/WFC3 observations of Cepheids in SN Ia hosts (Riess+, 2011)J/ApJ/758/11 : Bayesian distances to M31 satellites (Conn+, 2012)J/ApJ/745/156 : M31 Cepheids with HST/WFC3 (Riess+, 2012)J/ApJ/758/133 : Metallicity profile of M31 HII regions and PNe (Sanders+, 2012)J/A+A/576/A30 : NIR light-curve templates for classical Cepheids (Inno+, 2015)J/AJ/149/117 : LMC infrared survey. I. Photometry of Cepheids (Macri+, 2015)J/MNRAS/451/724 : PHAT. XIII. M31 Cepheid P-L relation (Wagner-Kaiser+, 2015)J/ApJ/826/56 : HST/WFC3 obs. of Cepheids in SN Ia host gal. (Riess+, 2016)J/AJ/156/130 : Cepheids in M31 - PAndromeda Cepheid sample (Kodric+, 2018)J/ApJ/864/59 : M31 PAndromeda Cepheid sample in four HST bands (Kodric+, 2018)J/MNRAS/482/5138 : Galactic GC proper motions & velocities (Baumgardt+, 2019)J/ApJ/876/85 : HST observations for LMC Cepheids (Riess+, 2019)J/ApJ/886/61 : OGLE-III, MCPS and HST VI obs. of LMC & SMC (Yuan+, 2019)J/ApJ/896/3 : Cosmicflows-4 Tully-Fisher relation calib. (Kourkchi+, 2020)J/AJ/160/199 : Estimated distances ~12000 galaxies with NED-D (Steer, 2020)J/ApJ/902/26 : HST opt. & H-band obs. of Cepheids in NGC4151 (Yuan+, 2020)J/ApJ/913/38 : Compilation of Cepheids in the MW and MCs (Breuval+, 2021)J/ApJ/906/125 : Carnegie-Chicago Hubble Program IX. TRGB in M106 (Jang+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/920/84https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/920/84http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/920/84https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/920/84https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/920/84http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/920/84GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/920/84/table2 (*Photometric results for M31 cepheids)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/920/84/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/920/84/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/920/84/table2?GETtext/xml+votable180.050000true10.91841.1860.0055555555555555566/2623 26661.1796835550914393e-19 4.293000657289493e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/920/84?format=asciiOpticalInfrareddefaultJ/ApJ/920/84/table2*Photometric results for M31 cepheidsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDCepheid identifiermeta.id;meta.maincharprimaryRAJ2000[10/12] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[41/42] Declination (J2000)degpos.eq.dec;meta.mainPer[4.13/76.6] Perioddtime.periodfloatF160W[16.2/20.3] HST/WFC3 F160W mean magnitudemagphot.mag;em.IR.Hfloate_F160W[0.03/0.2] Uncertainty in F160Wmagmagstat.errorfloatF814W[17.8/21.6] HST/WFC3 F814W mean magnitudemagphot.mag;em.opt.Ifloate_F814W[0.03/0.3] Uncertainty in F814Wmagmagstat.errorfloatF555W[19.7/22.5] HST/WFC3 F555W mean magnitudemagphot.mag;em.opt.Vfloate_F555W[0.04/0.5] Uncertainty in F555Wmagmagstat.errorfloatmWH[15.4/19.9] Wesenheit NIR H band index (1)magspect.indexfloate_mWH[0.09/0.3] Uncertainty in mWHmagstat.errorfloatmWI[15/20.4] Wesenheit visible I band index (1)magspect.indexfloate_mWI[0.1/0.8] Uncertainty in mWImagstat.errorfloatGCor[-0.007/0.03] Geometric correction from M31 centermaginstr.paramfloatSampleSample identifiermeta.id;src.samplecharJ/ApJ/920/84/table1Observations of M31 cepheidsIDTarget identifiermeta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFrameFrame identifiermeta.id;pos.frame;obs.fieldcharFiltFilter used; F160W, F555W, or F814Winstr.setupcharMJD[55560/58136] Modified Julian Date; MJD-2400000.5dtime.epochdoubleTexp[5/500] Exposure timestime.duration;obs.exposurefloatXpix[4.5/1013]? X pixel coordinatepixpos.cartesian.xfloatnullableYpix[20.6/1006]? Y pixel coordinatepixpos.cartesian.yfloatnullableProgProgram identifier; GO15146 or PHATmeta.idcharFlagObservation flag (1)meta.code