J/ApJ/808/183ivo://CDS.VizieR/J/ApJ/808/183doi:10.26093/cds/vizier.18080183CDSWalsh J.L.van den Bosch R.C.E.Gebhardt K.Yildirim A.Gultekin K.,Husemann B.Richstone D.O.2017-01-23T22:00:00Z2015-12-21T13:45:18ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyradial-velocityinfrared-astronomygalaxy-kinematicsLocated in the Perseus cluster, NGC 1271 is an early-type galaxy with a small effective radius of 2.2kpc and a large bulge stellar velocity dispersion of 276km/s for its K-band luminosity of 8.9x10^10^L_{sun}_. We present a mass measurement for the black hole in this compact, high-dispersion galaxy using observations from the Near-infrared Integral Field Spectrometer on the Gemini North telescope assisted by laser guide star adaptive optics, large-scale integral field unit observations with PPAK at the Calar Alto Observatory, and Hubble Space Telescope WFC3 imaging observations. We are able to map out the stellar kinematics both on small spatial scales, within the black hole sphere of influence, and on large scales that extend out to four times the galaxy's effective radius. We find that the galaxy is rapidly rotating and exhibits a sharp rise in the velocity dispersion. Through the use of orbit-based stellar dynamical models, we determine that the black hole has a mass of (3.0^+1.0^_-1.1_)x10^9^M_{sun}_ and the H-band stellar mass-to-light ratio is 1.40^+0.13^_-0.11_{gamma}_{sun}_ ({sigma} uncertainties). NGC 1271 occupies the sparsely populated upper end of the black hole mass distribution but is very different from the brightest cluster galaxies (BCGs) and giant elliptical galaxies that are expected to host the most massive black holes. Interestingly, the black hole mass is an order of magnitude larger than expectations based on the galaxy's bulge luminosity but is consistent with the mass predicted using the galaxy's bulge stellar velocity dispersion. More compact, high-dispersion galaxies need to be studied using high spatial resolution observations to securely determine black hole masses, as there could be systematic differences in the black hole scaling relations between these types of galaxies and the BCGs/giant ellipticals, thereby implying different pathways for black hole and galaxy growth.2015ApJ...808..183Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/808/183CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/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/ApJS/203/24 : Structural param. of gal. in CANDELS (van der Wel+, 2012)J/ApJS/199/36 : H{alpha} survey of nearby clusters of gal. (Sakai+, 2012)J/ApJS/199/26 : The 2MASS Redshift Survey (2MRS) (Huchra+, 2012)J/MNRAS/416/2840 : The 2M++ galaxy redshift catalogue (Lavaux+, 2011)J/MNRAS/414/888 : ATLAS3D project. III. (Emsellem+, 2011)J/ApJ/662/808 : Cusp radius in luminous elliptical galaxies (Lauer+, 2007)J/ApJ/655/790 : Groups of galaxies in 2MASS survey (Crook+, 2007)J/ApJS/152/251 : Indo-US library of coude feed spectra (Valdes+, 2004)J/PASP/111/438 : Updated Zwicky catalog (UZC) (Falco+, 1999)J/A+AS/139/141 : Galaxies in the Perseus Cluster (Brunzendorf+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/808/183https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/808/183http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/808/183https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/808/183https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/808/183http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/808/183GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJ/808/183/table2Gemini/NIFS kinematicse_h4[0.01/0.07] Error in h4stat.errorfloate_RVel[5/13.3] Error in RVelkm/sstat.error;spect.dopplerVelocfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintxThe x Voronoi bin generator (1)arcsecpos.cartesian.xfloatyThe y Voronoi bin generator (1)arcsecpos.cartesian.yfloatRVel[-227/224] Radial velocity (2)km/sphys.veloc;pos.heliocentricdoublesigma[205/397] Velocity dispersion (2)km/sphys.veloc.dispersionfloate_sigma[5/15.3] Error in sigmakm/sstat.errorfloath3[-0.08/0.08] line-of-sight velocity distribution's asymmetric deviation from a Gaussian (2)stat.fit.paramfloate_h3[0.01/0.06] Error in h3stat.errorfloath4[-0.08/0.08] line-of-sight velocity distribution's symmetric deviation from a Gaussian (2)stat.fit.paramfloatJ/ApJ/808/183/table3CAO/PPAK kinematicsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintxThe x Voronoi bin generator (1)arcsecpos.cartesian.xfloatyThe y Voronoi bin generator (1)arcsecpos.cartesian.yfloatRVel[-231/232] Radial velocity (2)km/sphys.veloc;pos.heliocentricdoublee_RVel[3/38] Error in RVelkm/sstat.error;spect.dopplerVelocfloatsigma[82/297] Velocity dispersion (2)km/sphys.veloc.dispersionfloate_sigma[4/43] Error in sigmakm/sstat.errorfloath3[-0.2/0.2] line-of-sight velocity distribution's asymmetric deviation from a Gaussian (2)stat.fit.paramfloate_h3[0.01/0.3] Error in h3stat.errorfloath4[-0.09/0.08] line-of-sight velocity distribution's symmetric deviation from a Gaussian (2)stat.fit.paramfloate_h4[0.01/0.3] Error in h4stat.errorfloat