418 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Space Telescope Science InstituteUS19 papers
- Johns Hopkins UniversityUS10 papers
- Université de MontréalCA9 papers
- Center for Astrophysics Harvard & SmithsonianUS7 papers
- Goddard Space Flight CenterUS7 papers
- Instituto de Astrofísica de AndalucíaES7 papers
- Centre National de la Recherche ScientifiqueFR6 papers
- European Space AgencyFR6 papers
- Centre for Research in Astrophysics of QuébecCA5 papers
- Instituto de Astrofísica de CanariasES5 papers
- University of ArizonaUS5 papers
- California Institute of TechnologyUS4 papers
12 papers · 1 filter
The Host Galaxy of the Quasar HE 0450-2958
Minjin Kim, Luis C. Ho, Chien Y. Peng +1
A recent study suggests that the quasar HE 0450-2958 is hosted by a galaxy substantially fainter than that inferred from the correlation between black hole mass and bulge luminosit…
Remarks on statistical errors in equivalent widths
Klaus Vollmann, Thomas Eversberg
Equivalent width measurements for rapid line variability in atomic spectral lines are degraded by increasing error bars with shorter exposure times. We derive an expression for the…
Probing the Coevolution of Supermassive Black Holes and Galaxies Using Gravitationally Lensed Quasar Hosts
C. Y. Peng, C. D. Impey, H. -W. Rix +5
In the present-day universe, supermassive black hole masses (MBH) appear to be strongly correlated with their galaxy's bulge luminosity, among other properties. In this study, we e…
Stellar Population in LLAGN.I: Ground-based observations
Roberto Cid Fernandes, Rosa M. Gonzalez Delgado, Henrique Schmitt +6
(Abridge): We present a spectroscopic study of the stellar populations of Low Luminosity AGN (LLAGN). Our main goal is to determine whether the stars who live in the innermost (100…
Stellar Population in LLAGN.II: STIS observations
Rosa M. Gonzalez Delgado, Roberto Cid Fernandes, Enrique Perez +5
We present a study of the stellar population in Low Luminosity AGN (LLAGN). Our goal is to search for spectroscopic signatures of young and intermediate age stars, and to investiga…
Is a minor-merger driving the nuclear activity in the Seyfert 2 galaxy NGC 2110?
Rosa M. Gonzalez Delgado, Santiago Arribas, Enrique Perez +1
We report on a detailed morphological and kinematic study of the isolated non-barred nearby Seyfert 2 galaxy NGC 2110. We combine Integral Field optical spectroscopy, with long-sli…
The Nuclei of Nearby Radio-Loud Ellipticals
G. A. Verdoes Kleijn, P. T. de Zeeuw, S. A. Baum +5
We have observed a complete sample of 21 nearby (D < 70h^{-1} Mpc) Fanaroff & Riley Type I galaxies with HST/WFPC2 and detected dust disks and lanes in 19 of them. The radio jets a…
The Nuclear and Circum-nuclear Stellar Population in Seyfert 2 Galaxies: Implications for the Starburst-AGN Connection
R. M. Gonzalez Delgado, T. Heckman, C. Leitherer
We report the results of a spectroscopic investigation of a sample of 20 of the brightest type 2 Seyfert nuclei. Our goal is to search for the direct spectroscopic signature of mas…
The black hole mass distribution in early-type galaxies: cusps in HST photometry interpreted through adiabatic black hole growth
R. P. van der Marel
The surface brightness profiles of early-type galaxies have central cusps. Two characteristic profile types are observed with HST: `core' profiles have a break at a resolved radius…
Ultraviolet-Optical observations of the Seyfert 2 Galaxies NGC 7130, NGC 5135 and IC 3639: Implications for the Starburst-AGN Connection
Rosa M. Gonzalez Delgado, Timothy Heckman, Claus Leitherer +5
We present and discuss HST (WFPC2 and FOC) images and UV GHRS spectra plus ground-based near UV through to near IR spectra of three Seyfert 2 nuclei (NGC 7130, NGC 5135 and IC 3639…
Astrometric Microlensing of Stars
Martin Dominik, Kailash C. Sahu
Due to dramatic improvements in the precision of astrometric measurements, the observation of light centroid shifts in observed stars due to intervening massive compact objects (`a…
Evidence for a 3 x 10^8 solar mass black hole in NGC 7052 from HST observations of the nuclear gas disk
R. P. van der Marel, F. C. van den Bosch
We present an HST study of the nuclear region of the E4 radio galaxy NGC 7052, which has a nuclear disk of dust and gas. The WFPC2 was used to obtain B, V and I broad-band images a…