Kessler, Richard, Becker, Andrew, Cinabro, David, Vanderplas, Jake, Frieman, Joshua A., Marriner, John, ...
We present measurements of the Hubble diagram for 103 Type Ia supernovae (SNe) with redshifts 0.04 < z < 0.42, discovered during the first season (Fall 2005) of the Sloan Digital Sky Survey-II...
The evolution of early and late type galaxies in the COSMOS up to z~1.2 (2009)
Pannella, Maurilio, Gabasch, Armin, Goranova, Yuliana, Drory, Niv, Hopp, Ulrich, Noll, Stefan, ...
The Cosmic Evolution Survey (COSMOS) allows for the first time a highly significant census of environments and structures up to redshift one, as well as a full morphological description of the galaxy...
Gultekin, Kayhan, Richstone, Douglas O., Gebhardt, Karl, Lauer, Tod R., Tremaine, Scott, Aller, M. C., ...
We derive improved versions of the relations between supermassive black hole mass (M_BH) and host-galaxy bulge velocity dispersion (sigma) and luminosity (L) (the M-sigma and M-L relations), based on...
Calculation of NNTs in RCTs with time-to-event outcomes: A literature review (2009)
Hildebrandt, Mandy, Vervölgyi, Elke, Bender, Ralf
Abstract Background The number needed to treat (NNT) is a well-known effect measure for reporting the results of clinical trials. In the case of time-to-event outcomes, the calculation of NNTs is...
A Quintet of Black Hole Mass Determinations (2009)
Gultekin, Kayhan, Richstone, Douglas O., Gebhardt, Karl, Lauer, Tod R., Pinkney, Jason, Aller, M. C., ...
We report five new measurements of central black hole masses based on STIS and WFPC2 observations with the Hubble Space Telescope and on axisymmetric, three-integral, Schwarzschild orbit-library...
High-dynamic-range surface photometry in a companion paper makes possible accurate measurement of the stellar light deficits L_def and mass deficits M_def associated with the cores of elliptical...
Structure and formation of elliptical and spheroidal galaxies (2009)
Kormendy, John, Fisher, David B., Cornell, Mark E., Bender, Ralf
The evolution of early- and late-type galaxies in the cosmic evolution survey up to z ≈ 1.2 (2009)
Pannella, Maurilio, Gabasch, Armin, Goranova, Yuliana, Drory, Niv, Hopp, Ulrich, Noll, Stefan, ...
Photometric redshifts for the CFHTLS-Wide (2008)
Brimioulle, Fabrice, Lerchster, Michael, Seitz, Stella, Bender, Ralf, Snigula, Jan
We want to derive bias free, accurate photometric redshifts for those fields of the CFHTLS-Wide data which are covered in the u*, g', r', i' and z' filters and are public on January 2008. These are...
Structure and Formation of Elliptical and Spheroidal Galaxies (2008)
Kormendy, John, Fisher, David B., Cornell, Mark E., Bender, Ralf
New surface photometry of all known elliptical galaxies in the Virgo cluster is added to published data to derive composite profiles over large dynamic ranges. Sersic functions fit them remarkably...
A Stellar Dynamical Measurement of the Black Hole Mass in the Maser Galaxy NGC 4258 (2008)
Siopis, Christos, Gebhardt, Karl, Lauer, Tod R., Kormendy, John, Pinkney, Jason, Richstone, Douglas, ...
We determine the mass of the black hole at the center of the spiral galaxy NGC 4258 by constructing axisymmetric dynamical models of the galaxy. These models are constrained by high spatial...
First-Year spectroscopy for the SDSS-II Supernova Survey (2008)
Zheng, Chen, Romani, Roger, Sako, Masao, Marriner, John, Bassett, Bruce, Becker, Andrew, ...
Also archived in: arXiv:0802.3220 v1 Feb 21 2008
First-Year Spectroscopy for the SDSS-II Supernova Survey (2008)
Zheng, Chen, Romani, Roger W., Sako, Masao, Marriner, John, Bassett, Bruce, Becker, Andrew, ...
This paper presents spectroscopy of supernovae discovered in the first season of the Sloan Digital Sky Survey-II Supernova Survey. This program searches for and measures multi-band light curves of...
The Sloan Digital Sky Survey-II Supernova Survey: technical summary (2008)
Frieman, Joshua, Bassett, Bruce, Becker, Andrew, Choi, Changsu, Cinabro, David, DeJongh, Fritz, ...
Also archived in: arXiv:0708.2749 v1 Aug 21 2007
The sloan digital sky survey-II supernova survey: technical summary (2008)
Frieman, Joshua A., Bassett, Bruce, Becker, Andrew, Choi, Changsu, Cinabro, David, DeJongh, Fritz, ...
First-year spectroscopy for the sloan digital sky survey - II. Supernova survey (2008)
Zheng, Chen, Romani, Roger W., Sako, Masao, Marriner, John, Bassett, Bruce, Becker, Andrew, ...
VIRUS-W: an integral field unit spectrograph dedicated to the study of spiral galaxy bulges (2008)
Fabricius, Maximilian H., Barnes, Stuart, Bender, Ralf, Drory, Niv, Grupp, Frank, Hill, Gary J., ...
A multi-instrument focal station for a 2m-class robotic telescope (2008)
Grupp, Frank, Lang, Florian, Bender, Ralf, Gössl, Claus, Hopp, Ulrich
VIRUS-W: a fiber based integral field unit spectrograph for the study of galaxy bulges (2008)
Fabricius, Maximilian H., Bender, Ralf, Drory, Niv, Grupp, Frank, Hill, Gary J., Hopp, Ulrich
Improving the Wendelstein observatory for a 2m-class telescope (2008)
Hopp, UIrich, Bender, Ralf, Goessl, Claus, Mitsch, Wolfgang, Barwig, Heinz, Riffeser, Arno, ...
Axisymmetric, 3-Integral Models of Galaxies: A Massive Black Hole in NGC 3379 (2007)
Karl Gebhardt, Douglas Richstone, John Kormendy, Tod R. Lauer, Edward A. Ajhar, Ralf Bender, ...
We fit axisymmetric, 3-integral dynamical models to NGC 3379 using HST/FOS spectra of the galaxy center and ground-based long-slit spectroscopy along four position angles, with the light distribution...
Theta Black Hole, John Kormendy, Ralf Bender, Aaron S. Evans
This paper is a study of the mass distribution in the central 35 00 ' 1.7 kpc of the E5 galaxy NGC 3377. Stellar rotation velocity and velocity dispersion profiles (seeing oe = 0. 00 20 -- 0. 00...
Jochen Heidt, Armin Gabasch, Stella Seitz, Ralf Bender, Klaus J. Fricke
Astronomy & Astrophysics manuscript no. (will be inserted by hand later)
The Black Hole Mass and Extreme Orbital Structure in NGC1399 (2007)
Gebhardt, Karl, Lauer, Tod R., Pinkney, Jason, Bender, Ralf, Richstone, Douglas, Aller, Monique, ...
The largest galaxies, and in particular central galaxies in clusters, offer unique insight into understanding the mechanism for the growth of nuclear black holes. We present Hubble Space Telescope...
Feulner, Georg, Goranova, Yuliana, Hopp, Ulrich, Gabasch, Armin, Bender, Ralf, Botzler, Christine S., ...
(Abridged) We present B, R, and I-band selected galaxy catalogues based on the Munich Near-Infrared Cluster Survey (MUNICS) which, together with the K-selected sample, serve as an important probe of...
Astro-WISE: Chaining to the Universe (2007)
Valentijn, Edwin A., McFarland, John P., Snigula, Jan, Begeman, Kor G., Boxhoorn, Danny R., Rengelink, Roeland, ...
The recent explosion of recorded digital data and its processed derivatives threatens to overwhelm researchers when analysing their experimental data or when looking up data items in archives and...
The puzzle of the Lyα galaxies: new results from the VLT (2007)
Tapken, Christian, Appenzeller, Immo, Gabasch, Armin, Heidt, Jochen, Hopp, Ulrich, Bender, Ralf, ...
Feulner, Georg, Goranova, Yuliana, Hopp, Ulrich, Gabasch, Armin, Bender, Ralf, Botzler, Christine S., ...
The puzzle of the Lya Galaxies: new results from the VLT (2007)
Tapken, Christian, Appenzeller, Immo, Gabasch, Armin, Heidt, Jochen, Hopp, Ulrich, Bender, Ralf, ...
Observations of high-redshift galaxies show that at early cosmic epochs the cosmic UV radiation field appears to be dominated by small galaxies with strong Ly-alpha emission. Although usually small...
The Centers of Early-Type Galaxies with HST. VI. Bimodal Central Surface Brightness Profiles (2006)
Lauer, Tod R., Gebhardt, Karl, Faber, S. M., Richstone, Douglas, Tremaine, Scott, Kormendy, John, ...
We combine the results from several HST investigations of the central structure of early-type galaxies to generate a large sample of parameterized surface photometry. The studies included were those...
Calculating confidence intervals for impact numbers (2006)
Hildebrandt, Mandy, Bender, Ralf, Gehrmann, Ulrich, Blettner, Maria
Abstract Background Standard effect measures such as risk difference and attributable risk are frequently used in epidemiological studies and public health research to describe the effect of...
Tracing the Mass-Assembly History of Galaxies with Deep Surveys (2006)
Feulner, Georg, Gabasch, Armin, Goranova, Yuliana, Hopp, Ulrich, Bender, Ralf
We use the optical and near-infrared galaxy samples from the Munich Near-Infrared Cluster Survey (MUNICS), the FORS Deep Field (FDF) and GOODS-S to probe the stellar mass assembly history of field...
Design of the KMOS multi-object integral field spectrograph (2006)
Sharples, Ray, Bender, Ralf, Bennett, Richard, Burch, Keith, Carter, Paul, Casali, Mark, ...
Design of the KMOS multi-object integral field spectrograph (2006)
Sharples, Ray, Bender, Ralf, Bennett, Richard, Burch, Keith, Carter, Paul, Casali, Mark, ...
KMOS: a multi-object deployable-IFU spectrometer for the ESO VLT (2006)
Sharples, Ray, Bender, Ralf, Bennett, Richard, Burch, Keith, Carter, Paul, Clark, Paul, ...
The evolution of galaxies in the FORS deep and GOODS-S field (2006)
Drory, Niv, Bender, Ralf, Feulner, Georg, Gabasch, Armin, Hopp, Ulrich, Noll, Stefan, ...
Meyer, Gabriele, Köpke, Sascha, Bender, Ralf, Mühlhauser, Ingrid
Abstract Background Older people living in nursing homes are at high risk of falling because of their general frailty and multiple pathologies. Prediction of falls might lead to an efficient...
Bender, Ralf, Kormendy, John, Bower, Gary, Green, Richard, Thomas, Jens, Danks, Anthony C., ...
We present HST spectroscopy of the nucleus of M31 obtained with STIS. Spectra taken around the CaT lines at 8500 see only the red giants in the double bright- ness peaks P1 and P2. In contrast,...
Specific star formation rates to redshift 5 from the FORS Deep Field and the GOODS-S Field (2005)
Feulner, Georg, Gabasch, Armin, Salvato, Mara, Drory, Niv, Hopp, Ulrich, Bender, Ralf
We explore the build-up of stellar mass in galaxies over a wide redshift range 0.4 < z < 5.0 by studying the evolution of the specific star formation rate (SSFR), defined as the star formation rate...
The Wendelstein Calar Alto Pixellensing Project (WeCAPP): The M31 Variable Star Catalogue (2005)
Fliri, Juergen, Riffeser, Arno, Seitz, Stella, Bender, Ralf
In this paper we present the WeCAPP variable star catalogue towards the bulge of M31. The observations of the WeCAPP microlensing survey (optical R and I bands) during three years (2000-2003) result...
Puzia, Thomas H., Kissler-Patig, Markus, Thomas, Daniel, Maraston, Claudia, Saglia, Roberto P., Bender, Ralf, ...
An analysis of ages, metallicities, and [alpha/Fe] ratios of globular cluster systems in early-type galaxies is presented, based on Lick index measurements summarized in Puzia et al. (2004, Paper I...
The epochs of early-type galaxy formation as a function of environment (2005)
Thomas, Daniel, Maraston, Claudia, Bender, Ralf, De Oliveira, Claudia Mendes
The MUNICS project: galaxy assembly at 0 < z < 1 (2005)
Drory, Niv, Bender, Ralf, Feulner, Georg, Hill, Gary J., Hopp, Ulrich, Maraston, Claudia, ...
Extremely red galaxies: dust attenuation and classification (2005)
Pierini, Daniele, Maraston, Claudia, Bender, Ralf, Witt, Adolf N.
Specific star formation rates to redshift 5 from the FORS deep field and the GOODS-S field (2005)
Feulner, Georg, Gabasch, Armin, Salvato, Mara, Drory, Niv, Hopp, Ulrich, Bender, Ralf
Surveying the high-redshift universe with KMOS (2005)
Sharples, Ray, Bender, Ralf, Bennett, Richard, Burch, Keith, Carter, Paul, Casali, Mark, ...
Surveying the high-redshift universe with KMOS (2005)
Sharples, Ray, Bender, Ralf, Bennett, Richard, Burch, Keith, Carter, Paul, Casali, Mark, ...
First science with SINFONI (2005)
Gillessen, Stefan, Davies, Ric, Kissler-Patig, Markus, Lehnert, Matthew, Van Der Werf, Paul, Nowak, Nina, ...
First science with SINFONI (2005)
Gillessen, Stefan, Davies, Ric, Kissler-Patig, Markus, Lehnert, Matthew, Van Der Werf, Paul, Nowak, Nina, ...
The Centers of Early-Type Galaxies with HST. V. New WFPC2 Photometry (2004)
Lauer, Tod R., Faber, S. M., Gebhardt, Karl, Richstone, Douglas, Tremaine, Scott, Ajhar, Edward A., ...
We analyze HST+WFPC2 images of 77 early-type galaxies. Brightness profiles are classed into "core" or "power-law" forms. Cores are typically rounder than power-law galaxies. Nearly all power-laws...
Feulner, Georg, Goranova, Yuliana, Drory, Niv, Hopp, Ulrich, Bender, Ralf
We investigate the contribution of star formation to the growth of stellar mass in galaxies over the redshift range 0.5 < z < 1.1 by studying the redshift evolution of the specific star formation...
Black Hole Mass Determinations From Orbit Superposition Models are Reliable (2004)
Richstone, Douglas, Gebhardt, Karl, Aller, Monique, Bender, Ralf, Bower, Gary, Dressler, Alan, ...
We show that orbit-superposition dynamical models (Schwarzschild's method) provide reliable estimates of nuclear black hole masses and errors when constructed from adequate orbit libraries and...
The Wendelstein Calar Alto Pixellensing Project(WeCAPP): First MACHO Candidates (2003)
Riffeser, Arno, Fliri, Juergen, Bender, Ralf, Seitz, Stella, Goessl, Claus A.
We report the detection of the first 2 microlensing candidates from the Wendelstein Calar Alto Pixellensing Project (WeCAPP). Both are detected with a high signal-to-noise-ratio and were filtered out...
Kinematics of Ten Early-Type Galaxies from HST and Ground-Based Spectroscopy (2003)
Pinkney, Jason, Gebhardt, Karl, Bender, Ralf, Bower, Gary, Dressler, Alan, Faber, S. M., ...
We present stellar kinematics for a sample of 10 early-type galaxies observed using the STIS aboard the Hubble Space Telescope, and the Modular Spectrograph on the MDM Observatory 2.4-m telescope....
New Clues on the Calcium Underabundance in Early-Type Galaxies (2003)
Thomas, Daniel, Maraston, Claudia, Bender, Ralf
We use our new stellar population models, which include effects from variable element abundance ratios, to model the Ca4227 absorption line indices of early-type galaxies (Trager et al.), and to...
Stellar population models of Lick indices with variable element abundance ratios (2003)
Thomas, Daniel, Maraston, Claudia, Bender, Ralf
We provide the whole set of Lick indices from CN1 to TiO2 in the wavelength range 4000 less than or similar toless than or similar tolambdaless than or similar to 6500 Angstrom of simple stellar...
Axisymmetric Dynamical Models Of The Central Regions Of Galaxies (2003)
Karl Gebhardt, Douglas Richstone, Scott Tremaine, Tod R. Lauer, Ralf Bender, Alan Dressler, ...
We present axisymmetric, orbit superposition models for 12 galaxies using data taken with the Hubble Space Telescope (HST) and ground-based observatories. In each galaxy, we detect a central black...
Jason Pinkney, Karl Gebhardt, Ralf Bender, Alan Dressler, S. M. Faber, Alexei V. Filippenko, ...
We present stellar kinematics for a sample of 10 early-type galaxies observed using the Space Telescope Imaging Spectrograph (STIS) aboard the Hubble Space Telescope, and the Modular Spectrograph on...
The puzzling small Ca II triplet absorption in elliptical galaxies (2002)
Saglia, R.P., Maraston, Claudia, Thomas, Daniel, Bender, Ralf, Colless, Matthew
not available
The puzzling small Ca II triplet absorption in elliptical galaxies (2002)
Saglia, R.P., Maraston, Claudia, Thomas, Daniel, Bender, Ralf, Colless, Matthew
not available
Axisymmetric Dynamical Models of the Central Regions of Galaxies (2002)
Gebhardt, Karl, Richstone, Douglas, Tremaine, Scott, Lauer, Tod R., Bender, Ralf, Bower, Gary, ...
We present axisymmetric, orbit superposition models for 12 galaxies using data taken with the Hubble Space Telescope (HST) and ground-based observatories. In each galaxy, we detect a central black...
The puzzlingly small CaII triplet absorption in elliptical galaxies (2002)
Saglia, R. P., Maraston, Claudia, Thomas, Daniel, Bender, Ralf, Colless, Matthew
We measure the central values (within Re/8) of the CaII triplet line indices CaT* and CaT and the Paschen index PaT at 8600 AA for a 93%-complete sample of 75 nearby early-type galaxies with BT
Stellar population models of Lick indices with variable element abundance ratios (2002)
Thomas, Daniel, Maraston, Claudia, Bender, Ralf
We provide the whole set of Lick indices from CN1 to TiO2 of Simple Stellar Population models with, for the first time, variable element abundance ratios, [alpha/Fe]=0.0, 0.3, 0.5, [alpha/Ca]=-0.1,...
Galaxies with a Central Minimum in Stellar Luminosity Density (2002)
Lauer, Tod R., Gebhardt, Karl, Richstone, Douglas, Tremaine, Scott, Bender, Ralf, Bower, Gary, ...
We used HST WFPC2 images to identify six early-type galaxies with surface- brightness profiles that decrease inward over a limited range of radii near their centers. The implied luminosity density...
The slope of the black-hole mass versus velocity dispersion correlation (2002)
Tremaine, Scott, Gebhardt, Karl, Bender, Ralf, Bower, Gary, Dressler, Alan, Faber, S. M., ...
Observations of nearby galaxies reveal a strong correlation between the mass of the central dark object M and the velocity dispersion sigma of the host galaxy, of the form log(M/M_sun) = a +...
The Epochs of Early-Type Galaxy Formation in Clusters and in the Field (2002)
Thomas, Daniel, Maraston, Claudia, Bender, Ralf
We compute new population synthesis models of Lick absorption line indices with variable alpha/Fe ratios and use them to derive average ages, metallicities, and alpha/Fe element enhancements for a...
The puzzling small Ca II triplet absorption in elliptical galaxies (2002)
Saglia, R.P., Maraston, Claudia, Thomas, Daniel, Bender, Ralf, Colless, Matthew
not available
The puzzlingly small Ca II triplet absorption in elliptical galaxies (2002)
Saglia, R. P., Maraston, Claudia, Thomas, Daniel, Bender, Ralf, Colless, Matthew
We measure the central values (within R-e/8) of the Ca II triplet line indices CaT* and CaT and the Paschen index PaT at 8600 Angstrom for a 93% complete sample of 75 nearby early-type galaxies with...
The puzzling small Ca II triplet absorption in elliptical galaxies (2002)
Saglia, R.P., Maraston, Claudia, Thomas, Daniel, Bender, Ralf, Colless, Matthew
not available
The puzzling small Ca II triplet absorption in elliptical galaxies (2002)
Saglia, R.P., Maraston, Claudia, Thomas, Daniel, Bender, Ralf, Colless, Matthew
not available
Tod Lauer National, Tod R. Lauer, Karl Gebhardt, Scott Tremaine, Ralf Bender, Gary Bower, ...
We used Hubble Space Telescope WFPC2 images to identify six early-type galaxies with surface-brightness profiles that decrease inward over a limited range of radii near their centers. The implied...
The Slope of the Black-Hole Mass versus Velocity Dispersion Correlation (2002)
Scott Tremaine, Karl Gebhardt, Ralf Bender, Gary Bower, Alan Dressler, S. M. Faber, ...
Observations of nearby galaxies reveal a strong correlation between the mass of the central dark object M . and the velocity dispersion # of the host galaxy, of the form log(M . /M# ) = # + # log(#/#...
The Astrophysical Journal, R. P. Saglia, Claudia Maraston, Daniel Thomas, Ralf Bender, Matthew Colless
We measure the central values (within ) of the Ca ii triplet line indices CaT* and CaT and the Paschen R /8 e index PaT at 8600 A for a 93% complete sample of 75 nearby early-type galaxies with mag...
Galaxy-galaxy lensing in the FORS Deep Field (2002)
Stella Seitz Thomas, Thomas Erben, Ralf Bender
We demonstrate the presence of a galaxy-galaxy lensing signal of z = 0.5 1.0 foreground galaxies by analyzing the distortion of z = 2.5 4.5 background galaxies in the FORS Deep Field. The signal...
Body Weight, Blood Pressure, and Mortality in a Cohort of Obese Patients (2002)
Bender, Ralf, Jöckel, Karl-Heinz, Richter, Bernd, Spraul, Maximilian, Berger, Michael
The associations between body weight, raised blood pressure, and mortality remain controversial. The authors examined these relations by considering all degrees of obesity in the Düsseldorf Obesity...
The puzzling small Ca II triplet absorption in elliptical galaxies (2002)
Saglia, R.P., Maraston, Claudia, Thomas, Daniel, Bender, Ralf, Colless, Matthew
not available
Riffeser, Arno, Fliri, Juergen, Goessl, Claus A., Bender, Ralf, Hopp, Ulrich, Baernbantner, Otto, ...
We present WeCAPP, a long term monitoring project searching for microlensing events towards M 31. Since 1997 the bulge of M 31 was monitored in two different wavebands with the Wendelstein 0.8 m...
The Nuclear dynamics of M32. I. Data and stellar kinematics (2001)
Joseph, Charles, Merritt, David, Olling, Rob, Valluri, Monica, Bender, Ralf, Bower, Gary, ...
Archived in: arXiv:astro-ph/0005530 v2 28 May 2000 AND Rutgers Astrophysics Preprint Series No. 273
The nuclear dynamics of M32. I. Data and stellar kinematics (2001)
Joseph, Charles, Merritt, David, Olling, Rob, Valluri, Monica, Bender, Ralf, Bower, Gary, ...
Archived in: arXiv:astro-ph/0005530 v2 28 May 2000 AND Rutgers Astrophysics Preprint Series No. 273
Line-of-sight velocity distributions of low-luminosity elliptical galaxies (2001)
Halliday, C., Davies, Roger L., Kuntschner, Harald, Birkinshaw, M., Bender, Ralf, Saglia, R. P., ...
The shape of the line-of-sight velocity distribution (LOSVD) is measured for a sample of 14 elliptical galaxies, predominantly low-luminosity ellipticals. The sample is dominated by galaxies in the...
Dynamical family properties and dark halo scaling relations of giant elliptical galaxies (2000)
Gerhard, Ortwin, Kronawitter, Andi, Saglia, R. P., Bender, Ralf
Based on a uniform dynamical analysis of line-profile shapes for 21 luminous round elliptical galaxies, we have investigated the dynamical family relations of ellipticals: (i) The circular velocity...
Black Hole Mass Estimates from Reverberation Mapping and from Spatially Resolved Kinematics (2000)
Gebhardt, Karl, Kormendy, John, Ho, Luis, Bender, Ralf, Bower, Gary, Dressler, Alan, ...
Black hole (BH) masses that have been measured by reverberation mapping in active galaxies fall significantly below the correlation between bulge luminosity and BH mass determined from spatially...
A Relationship Between Nuclear Black Hole Mass and Galaxy Velocity Dispersion (2000)
Gebhardt, Karl, Bender, Ralf, Bower, Gary, Dressler, Alan, Faber, S. M., Filippenko, Alexei V., ...
We describe a correlation between the mass M_BH of a galaxy's central black hole and the luminosity-weighted line-of-sight velocity dispersion sigma_e within the half-light radius. The result is...
Black Hole Mass Estimates from Reverberation Mapping and from Spatially Resolved Kinematics (2000)
Karl Gebhardt, John Kormendy, Luis C. Ho, Ralf Bender, Gary Bower, Alan Dressler, ...
Black hole (BH) masses that have been measured by reverberation mapping in active galaxies fall significantly below the correlation between bulge luminosity and BH mass determined from spatially...
A Relationship Between Nuclear Black Hole Mass And Galaxy Velocity Dispersion (2000)
Karl Gebhardt, Ralf Bender, Alan Dressler, S. M. Faber, Alexei V, Richard Green, ...
We describe a correlation between the mass M of a galaxy's central black hole and the luminosity-weighted line-of-sight velocity dispersion e within the half-light radius. The result is based on...
Stellar yields and chemical evolution - The solar neighborhood as a calibrator (1999)
Thomas, Daniel, Greggio, Laura, Bender, Ralf
Uncertainties in stellar nucleosynthesis and their impact on models of chemical evolution are discussed. Comparing the Type II supernova nucleosynthesis prescriptions from Woosley & Weaver (1995) and...
Axisymmetric, 3-Integral Models of Galaxies: A Massive Black Hole in NGC3379 (1999)
Gebhardt, Karl, Richstone, Douglas, Kormendy, John, Lauer, Tod, Ajhar, Edward, Bender, Ralf, ...
We fit axisymmetric 3-integral dynamical models to NGC3379 using the line-of-sight velocity distribution obtained from HST/FOS spectra of the galaxy center and ground-based long-slit spectroscopy...
The orbital structure and potential of NGC 1399 (1999)
Saglia, R. P., Kronawitter, Andi, Gerhard, Ortwin, Bender, Ralf
Accurate and radially extended stellar kinematic data reaching R=97'' from the center are presented for the cD galaxy of Fornax, NGC 1399. The stellar rotation is small (
Elliptical Galaxies: Detailed Structure, Scaling Relations and Formation (1998)
Bender, Ralf, Saglia, Roberto P.
The last decade of research on elliptical galaxies has produced a wealth of new information concerning both their detailed structure and their global scaling relations. We review the old and new...
Dynamical analysis of elliptical galaxy halos (1998)
Kronawitter, Andi, Gerhard, Ortwin E., Saglia, R. P., Bender, Ralf
We describe a non-parametric method for determining both the anisotropy and mass profiles of elliptical galaxies from velocity dispersions and velocity profile shapes along the line of sight. In this...
Kormendy, John, Bender, Ralf, Evans, Aaron S., Richstone, Douglas
We have measured the mass distribution in the central 35" = 1.7 kpc of the E5 galaxy NGC 3377. Stellar rotation velocity and velocity dispersion profiles (seeing sigma_* = 0.20 - 0.56 arcsec) and...
Dynamical Mass Determination for Elliptical Galaxies (1998)
Gerhard, Ortwin, Jeske, Gunther, Saglia, R. P., Bender, Ralf
The mass and anisotropy of an elliptical galaxy can be simultaneously determined from velocity dispersion and line profile shape measurements. We describe the principles, techniques, and limitations...
Assessment of Excess Mortality in Obesity (1998)
Bender, Ralf, Trautner, Christoph, Spraul, Maximilian, Berger, Michael
Quantification of the excess mortality from all causes associated with obesity remains controversial. In this paper, 6,193 obese patients, those with a body mass index (weight (kg)/height (m)2 (BMI))...
Mehlert, Doerte, Saglia, Roberto P., Bender, Ralf, Wegner, Gary
The Coma cluster is one of the richest known cluster of galaxies, spanning about 4 dex in density. Hence it is the ideal place to study the structure of galaxies as a function of environmental...
M32-like galaxies: still very rare -- M32 analogues do not exist in the Leo group (1997)
Ziegler, Bodo L., Bender, Ralf
New observations of galaxies in the direction of the Leo group, which were classified as being candidates for M32-like dwarf galaxies by Ferguson & Sandage (1990), show that these galaxies are normal...
Breaking the degeneracy between anisotropy and mass: The dark halo of the E0 galaxy NGC 6703 (1997)
Gerhard, Ortwin, Jeske, Gunther, Saglia, R. P., Bender, Ralf
(abridged) We have measured line-of-sight velocity profiles (VPs) in the E0 galaxy NGC 6703 out to 2.6 R_e. From these data we constrain the mass distribution and the anisotropy of the stellar orbits...
Spectroscopic Gradients in Early -- Type Galaxies and Implications on Galaxy Formation (1997)
Mehlert, Dörte, Bender, Ralf, Saglia, Roberto P., Wegner, Gary
The Coma cluster is the ideal place to study galaxy structure as a function of environmental density in order to constrain theories of galaxy formation and evolution. Here we present the spectroscopy...
The Demography of Massive Dark Objects in Galaxy Centres (1997)
Magorrian, John, Tremaine, Scott, Richstone, Douglas, Bender, Ralf, Bower, Gary, Dressler, Alan, ...
We construct dynamical models for a sample of 36 nearby galaxies with Hubble Space Telescope photometry and ground-based kinematics. The models assume that each galaxy is axisymmetric, with a...
Global Relationships Among the Physical Properties of Stellar Systems (1997)
Burstein, David, Bender, Ralf, Faber, Sandra, Nolthenius, Richard
The kappa-space three-dimensional parameter system was originally defined for the physical properties of dynamically hot galaxies. Here we define self-consistent kappa-parameters for disk galaxies,...
The Mgb-sigma Relation of Elliptical Galaxies at z=0.37 (1997)
Ziegler, Bodo L., Bender, Ralf
We derive absorption indices of ellipticals in clusters at z=0.37 from medium-resolution spectroscopy together with kinematical parameters. These galaxies exhibit a relationship between the Mgb...
Spectroscopic Evidence for a Supermassive Black Hole in NGC 4486B (1997)
Kormendy, John, Bender, Ralf, Magorrian, John, Tremaine, Scott, Gebhardt, Karl, Richstone, Douglas, ...
The stellar kinematics of the dwarf elliptical galaxy NGC 4486B have been measured in seeing sigma_* = .22 arcsec with the Canada-France-Hawaii Telescope. Lauer et al. 1996, ApJ, 471, L79 have shown...
The Mg-sigma Relation of Elliptical Galaxies at Various Redshifts (1997)
Ziegler, Bodo L., Bender, Ralf
The correlation between the Mg absorption index and the velocity dispersion (sigma) of local elliptical galaxies is very tight. Because the Mg absorption depends on both metallicity and age of the...
The Redshift Evolution of the Stellar Populations in Elliptical Galaxies (1996)
Bender, Ralf, Ziegler, Bodo, Bruzual, Gustavo
Velocity dispersions $\sigma$ and Mg absorption line-strengths Mg$_b$ have been measured for a sample of 16 ellipticals in 3 clusters at a redshift of 0.37. Like local cluster ellipticals, these...
Thesis (doctoral)--Rheinische Friedrich-Wilhelms-Universität zu Bonn, 1995.
Morphologie und Kinematik elliptischer Galaxien. (1987)
Heidelberg, Univ., Diss., 1987 (Nicht f.d. Austausch).
Calculating confidence intervals for impact numbers
Hildebrandt, Mandy, Bender, Ralf, Gehrmann, Ulrich, Blettner, Maria
Calculating confidence intervals for impact numbers
Hildebrandt, Mandy, Bender, Ralf, Gehrmann, Ulrich, Blettner, Maria