Strong [O III] Objects Among SDSS Broad-Line Active Galaxies (2009)
Ludwig, Randi R., Wills, Beverley, Greene, Jenny E., Robinson, Edward L.
We present the results of a spectral principal component analysis on 9046 broad-line AGN from the Sloan Digital Sky Survey. We examine correlations between spectral regions within various...
Redshift Evolution in Black Hole-Bulge Relations: Testing CIV-based Black Hole Masses (2009)
Greene, Jenny E., Peng, Chien Y., Ludwig, Randi R.
We re-examine claims of redshift evolution in black hole-bulge scaling relations based on lensed quasars. In particular, we refine the black hole mass estimates using measurements of Balmer lines...
Active Galaxies and the Study of Black Hole Demographics (2009)
We discuss the critical importance of black hole mass indicators based on scaling relations in active galaxies. We highlight outstanding uncertainties in these methods and potential paths to...
Walsh, Jonelle L., Minezaki, Takeo, Bentz, Misty C., Barth, Aaron J., Baliber, Nairn, Li, Weidong, ...
The Lick AGN Monitoring Project targeted 13 nearby Seyfert 1 galaxies with the intent of measuring the masses of their central black holes using reverberation mapping. The sample includes 12 galaxies...
Liu, Xin, Shen, Yue, Strauss, Michael A., Greene, Jenny E.
We present a sample of 167 type 2 AGNs with double-peaked [O III]4959,5007 narrow emission lines, selected from the seventh data release of the Sloan Digital Sky Survey. The double-peaked profiles...
Bentz, Misty C., Walsh, Jonelle L., Barth, Aaron J., Baliber, Nairn, Bennert, Nicola, Canalizo, Gabriela, ...
We have recently completed a 64-night spectroscopic monitoring campaign at the Lick Observatory 3-m Shane telescope with the aim of measuring the masses of the black holes in 12 nearby (z < 0.05)...
Host Galaxies of Luminous Type 2 Quasars at z ~ 0.5 (2009)
Liu, Xin, Zakamska, Nadia L., Greene, Jenny E., Strauss, Michael A., Krolik, Julian H., Heckman, Timothy M.
We present deep Gemini GMOS optical spectroscopy of nine luminous quasars at redshifts z ~ 0.5, drawn from the SDSS type 2 quasar sample. Our targets were selected to have high intrinsic luminosities...
The Growth of Black Holes: Insights From Obscured Active Galaxies (2009)
Greene, Jenny E., Zakamska, Nadia L., Liu, Xin, Barth, Aaron J., Ho, Luis C.
Obscured or narrow-line active galaxies offer an unobstructed view of the quasar environment in the presence of a luminous and vigorously accreting black hole. We exploit the large new sample of...
Ho, Luis C., Greene, Jenny E., Filippenko, Alexei V., Sargent, Wallace L. W.
We present new central stellar velocity dispersion measurements for 428 galaxies in the Palomar spectroscopic survey of bright, northern galaxies. Of these, 142 have no previously published...
Ho, Luis C., Greene, Jenny E., Filippenko, Alexei V., Sargent, Wallace L. W.
We present new central stellar velocity dispersion measurements for 428 galaxies in the Palomar spectroscopic survey of bright, northern galaxies. Of these, 142 have no previously published...
Desroches, Louis-Benoit, Greene, Jenny E., Ho, Luis C.
We present X-ray properties of optically-selected intermediate-mass (~10^5--10^6 M_Sun) black holes (BHs) in active galaxies (AGNs), using data from the Chandra X-Ray Observatory. Our observations...
First Results from the Lick AGN Monitoring Project: The Mass of the Black Hole in Arp 151 (2008)
Bentz, Misty C., Walsh, Jonelle L., Barth, Aaron J., Baliber, Nairn, Bennert, Nicola, Canalizo, Gabriela, ...
We have recently completed a 64-night spectroscopic monitoring campaign at the Lick Observatory 3-m Shane telescope with the aim of measuring the masses of the black holes in 13 nearby (z < 0.05)...
Greene, Jenny E., Ho, Luis C., Barth, Aaron J.
We investigate the relationship between black hole mass and host galaxy properties for active galaxies with the lowest black hole masses currently known in galaxy nuclei. Hubble Space Telescope...
Galaxies Correlating with Ultra-high Energy Cosmic Rays (2008)
Zaw, Ingyin, Farrar, Glennys R., Greene, Jenny E.
The Pierre Auger Observatory reports that 20 of the 27 highest energy cosmic rays have arrival directions within 3.2 deg of a nearby galaxy in the Veron-Cetty & Veron Catalog of Quasars and Active...
Properties of Active Galaxies Deduced from H I Observations (2008)
Ho, Luis C., Darling, Jeremy, Greene, Jenny E.
We completed a new survey for H I emission for a large, well-defined sample of 154 nearby (z < 0.1) galaxies with type 1 AGNs. We make use of the extensive database presented in a companion paper to...
A New H I Survey of Active Galaxies (2008)
Ho, Luis C., Darling, Jeremy, Greene, Jenny E.
We have conducted a new Arecibo survey for H I emission for 113 galaxies with broad-line (type 1) active galactic nuclei (AGNs) out to recession velocities as high as 35,000 km/s. The primary aim of...
Biases in Virial Black Hole Masses: An SDSS Perspective (2007)
Shen, Yue, Greene, Jenny E., Strauss, Michael A., Richards, Gordon T., Schneider, Donald P.
We compile black hole (BH) masses for $\sim 60,000$ quasars in the redshift range $0.1 \lesssim z \lesssim 4.5$ included in the Fifth Data Release of the Sloan Digital Sky Survey (SDSS), using virial...
A New Sample of Low-mass Black Holes in Active Galaxies (2007)
We present an expanded sample of low-mass black holes (BHs) found in galactic nuclei. Using standard virial mass techniques to estimate BH masses, we select from the Fourth Data Release of the Sloan...
The Mass Function of Active Black Holes in the Local Universe (2007)
We present the first measurement of the black hole (BH) mass function for broad-line active galaxies in the local Universe. Using the ~9000 broad-line active galaxies from the Fourth Data Release of...
Radio Emission from the Intermediate-mass Black Hole in the Globular Cluster G1 (2007)
Ulvestad, James S., Greene, Jenny E., Ho, Luis C.
We have used the Very Large Array (VLA) to search for radio emission from the globular cluster G1 (Mayall-II) in M31. G1 has been reported by Gebhardt et al. to contain an intermediate-mass black...
X-ray Properties of Intermediate-mass Black Holes in Active Galaxies (2006)
We present a pilot study of the X-ray properties of intermediate-mass (~10^5-10^6 M_sun) black holes in active galaxies using the Chandra X-ray telescope. Eight of the 10 active galaxies are detected...
The M-sigma Relation in Local Active Galaxies (2005)
We examine whether active galaxies obey the same relation between black hole mass and stellar velocity dispersion as inactive systems, using the largest published sample of velocity dispersions for...
Measuring Stellar Velocity Dispersions in Active Galaxies (2005)
(ABRIDGED) We present stellar velocity dispersion (sigma*) measurements for a significant sample of 40 broad-line (Type 1) active galaxies for use in testing the well-known relation between black...
Spatially-Resolved Narrow Line Region Kinematics in Active Galactic Nuclei (2005)
Rice, Melissa S., Martini, Paul, Greene, Jenny E., Pogge, Richard W., Shields, Joseph C., Mulchaey, John S., ...
We have analyzed HST spectroscopy of 24 nearby AGNs to investigate spatially-resolved gas kinematics in the Narrow Line Region (NLR). These observations effectively isolate the nuclear line profiles...
The Radio Quiescence of Active Galaxies with High Accretion Rates (2005)
Greene, Jenny E., Ho, Luis C., Ulvestad, James S.
We present 6 cm Very Large Array observations of the Greene & Ho (2004) sample of 19 low-mass active galaxies with high accretion rates. This is one of the only studies of a uniform sample of...
Estimating Black Hole Masses in Active Galaxies Using the Halpha Emission Line (2005)
It has been established that virial masses for black holes in low-redshift active galaxies can be estimated from measurements of the optical continuum strength and the width of the broad Hbeta line....
A Comparison of Stellar and Gaseous Kinematics in the Nuclei of Active Galaxies (2005)
To investigate the relationship between black holes and their host galaxies, many groups have used the width of the [O III] 5007 line as a substitute for the stellar velocity dispersion (sigma*) of...
Active Galactic Nuclei with Candidate Intermediate-Mass Black Holes (2004)
We present an initial sample of 19 intermediate-mass black hole candidates in active galactic nuclei culled from the First Data Release of the Sloan Digital Sky Survey. Using the...