J/ApJ/817/2ivo://CDS.VizieR/J/ApJ/817/2doi:10.26093/cds/vizier.18170002CDSWalsh J.L.van den Bosch R.C.E.Gebhardt K.Yildirim A.Richstone D.O.,Gultekin K.Husemann B.2017-01-23T22:00:00Z2016-04-26T14:29:38ZCDS support team

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

cds-question@unistra.frgalaxiesradial-velocitygalaxy-kinematicsinfrared-astronomyspectroscopyThe nearby lenticular galaxy NGC 1277 is thought to host one of the largest black holes known, however the black hole mass measurement is based on low spatial resolution spectroscopy. In this paper, we present Gemini Near-infrared Integral Field Spectrometer observations assisted by adaptive optics. We map out the galaxy's stellar kinematics within ~440pc of the nucleus with an angular resolution that allows us to probe well within the region where the potential from the black hole dominates. We find that the stellar velocity dispersion rises dramatically, reaching ~550km/s at the center. Through orbit-based, stellar-dynamical models we obtain a black hole mass of (4.9+/-1.6)x10^9^M_{sun}_ (1{sigma} uncertainties). Although the black hole mass measurement is smaller by a factor of ~3 compared to previous claims based on large-scale kinematics, NGC 1277 does indeed contain one of the most massive black holes detected to date, and the black hole mass is an order of magnitude larger than expectations from the empirical relation between black hole mass and galaxy luminosity. Given the galaxy's similarities to the higher redshift (z~2) massive quiescent galaxies, NGC 1277 could be a relic, passively evolving since that period. A population of local analogs to the higher redshift quiescent galaxies that also contain over-massive black holes may suggest that black hole growth precedes that of the host galaxy.2016ApJ...817....2Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/817/2CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/808/183 : NGC1271 stellar kinematics (Walsh+, 2015)J/ApJ/805/96 : SDSS-RM project: velocity dispersions of QSOs (Shen+, 2015)J/A+A/578/A134 : Compact early-type galaxies in SDSS (Saulder+, 2015)J/ApJS/218/10 : HET Massive Galaxy Survey (HETMGS) (van den Bosch+, 2015)J/AJ/146/45 : Spectroscopy of 6 early-type galaxies (Rusli+, 2013)J/ApJ/708/137 : Broad-line AGNs in zCOSMOS survey (Merloni+, 2010)J/MNRAS/371/703 : MILES library of empirical spectra (Sanchez-Blazquez+, 2006)J/ApJS/152/251 : Indo-US library of coude feed stellar spectra (Valdes+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/817/2https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/817/2http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/817/2https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/817/2https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/817/2http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/817/2GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJ/817/2/table1Near-infrared Integral Field Spectrometer (NIFS) kinematicse_h4[0.01/0.03] Uncertainty in h4stat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintx[-0.79/0.83] Voronoi bin x generator (1)arcsecpos.cartesian.xfloaty[-0.79/0.73] Voronoi bin y generatorarcsecpos.cartesian.yfloatRVel[-349/358] Radial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVel[4/10] Uncertainty in RVelkm/sstat.error;spect.dopplerVelocfloatsigma[237/580] Velocity dispersionkm/sphys.veloc.dispersionfloate_sigma[5/18] Uncertainty in sigmakm/sstat.errorfloath3[-0.31/0.23] Gauss-Hermite h_3_ moment (2)stat.fit.paramfloate_h3[0.01/0.03] Uncertainty in h3stat.errorfloath4[-0.04/0.17] Gauss-Hermite h_4_ moment (3)stat.fit.paramfloat