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We have compiled a sample of 3041 spiral galaxies with multi-band gri imaging from the Sloan Digital Sky Survey (SDSS) Data Release 7 and available galaxy rotational velocities derived from HI line widths. We compare the data products…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Melanie Hall , Stephane Courteau , Aaron A. Dutton , Michael McDonald , Yucong Zhu

We present J-H-K' photometry for a sample of 45 high redshift quasars found by the Sloan Digital Sky Survey. The sample was originally selected on the basis of optical colors and spans a redshift range from 3.6 to 5.03. Our photometry…

We present a photometrical and morphological study of the properties of low redshift (z < 0.5) quasars based on a large and homogeneous dataset of objects derived from the Sloan Digital Sky Survey (DR7). This study over number by a factor…

Astrophysics of Galaxies · Physics 2015-06-18 R. Falomo , D. Bettoni , K. Karhunen , J. K. Kotilainen , M. Uslenghi

We report {\em JWST}/NIRCam measurements of quasar host galaxy emissions and supermassive black hole (SMBH) masses for six quasars at $5.9<z<7.1$ in the \textit{Emission-line galaxies and Intergalactic Gas in the Epoch of Reionization}…

We measure the evolution in the virial mass-to-light ratio (M_{200}/L_B) and virial-to-stellar mass ratio (M_{200}/M_\ast) for isolated ~ L* galaxies between z~1 and z~0 by combining data from the DEEP2 Galaxy Redshift Survey and the Sloan…

We compare the set of local galaxies having dynamically measured black holes with a large, unbiased sample of galaxies extracted from the Sloan Digital Sky Survey. We confirm earlier work showing that the majority of black hole hosts have…

We describe a method to measure the M-sigma relation in the non-local universe using dust-obscured QSOs. We present results from a pilot sample of nine 2MASS red QSOs with redshifts 0.14<z<0.37. We find that there is an offset (0.8 dex, on…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Gabriela Canalizo , Margrethe Wold , Kyle D. Hiner , Mariana Lazarova , Mark Lacy , Kevin Aylor

We combine Hubble Space Telescope images of a sample of 20 Seyfert galaxies at z=0.36 with spectroscopic information from the Keck Telescope to determine the black hole mass - spheroid luminosity relation (M-L), the Fundamental Plane (FP)…

Astrophysics · Physics 2009-06-23 Tommaso Treu , Jong-Hak Woo , Matthew A. Malkan , Roger D. Blandford

(Abridged) To investigate the black hole mass (MBH) vs. stellar velocity dispersion relation of active galaxies, we measured the velocity dispersions of a sample of local Seyfert 1 galaxies, for which we have recently determined MBH using…

In the local universe, the masses of Super-Massive Black-Holes (SMBH) appear to correlate with physical properties of their hosts, including the mass of the dark-matter halos. At higher redshifts, we observe the growth of SMBHs indirectly…

Astrophysics · Physics 2009-11-10 Stuart Wyithe , T. Padmanabhan

We investigate the relationship between the mass of the central supermassive black hole, M_bh, and the host galaxy luminosity, L_gal, in a sample of quasars from the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7). We use composite…

Astrophysics of Galaxies · Physics 2015-06-19 S. Salviander , G. A. Shields , E. W. Bonning

To calibrate stellar velocity dispersion measurements from optical and near-IR stellar lines, and to improve the black hole mass (MBH)- stellar velocity dispersion (sigma) relation, we measure stellar velocity dispersions based on high…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Wol-Rang Kang , Jong-Hak Woo , Andreas Schulze , Dominik A. Riechers , Sang Chul Kim , Daeseong Park , Vernesa Smolcic

We examine the relation between stellar mass and central stellar velocity dispersion-the M-sigma relation-for massive quiescent galaxies at z<0.7. We measure the local relation from the Sloan Digital Sky Survey and the intermediate redshift…

Astrophysics of Galaxies · Physics 2016-12-14 H. Jabran Zahid , Margaret Geller , Daniel Fabricant , Ho Seong Hwang

We present the study on the relationship between SMBHs and their host galaxies using our variability-selected AGN sample ($i_\mathrm{AB} \leq 25.9,\ z \leq 4.5$) constructed from the HSC-SSP Ultra-deep survey in the COSMOS field. We…

Astrophysics of Galaxies · Physics 2024-06-26 Atsushi Hoshi , Toru Yamada , Mitsuru Kokubo , Yoshiki Matsuoka , Tohru Nagao

A systematic investigation of the relationship between different redshift estimation schemes for more than 91000 quasars in the Sloan Digital Sky Survey (SDSS) Data Release 6 (DR6) is presented. The publicly available SDSS quasar redshifts…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Paul C. Hewett , Vivienne Wild

Motivated by recent observational results that focus on high redshift black holes, we explore the effect of scatter and observational biases on the ability to recover the intrinsic properties of the black hole population at high redshift.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Marta Volonteri , Daniel P. Stark

A sample of nearly 9000 early-type galaxies, in the redshift range 0.01<z<0.3, was selected from the Sloan Digital Sky Survey using morphological and spectral criteria. The sample was used to study how early-type galaxy observables,…

We present a new approach to analysing the dependence of quasar variability on rest-frame wavelengths. We exploited the spectral archive of the Sloan Digital Sky Survey (SDSS) to create a sample of more than 9000 quasars in the Stripe 82.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 H. Meusinger , A. Hinze , A. de Hoon

We present reverberation mapping results for the MgII 2800 A broad emission line in a sample of 193 quasars at 0.35<z<1.7 with photometric and spectroscopic monitoring observations from the Sloan Digital Sky Survey Reverberation Mapping…