74 citations · 114 across the 6 of their papers we have counts for
15 papers · 1 filter
Spatial decomposition of on-nucleus spectra of quasar host galaxies
Knud Jahnke, Lutz Wisotzki, Frederic Courbin +1
In order to study the host galaxies of type 1 (broad-line) quasars, we present a semi-analytic modelling method to decompose the on-nucleus spectra of quasars into nuclear and host…
DECPHOT: an optimal deconvolution-based photometric reduction method
M. Gillon, P. Magain, V. Chantry +5
A high accuracy photometric reduction method is needed to take full advantage of the potential of the transit method for the detection and characterization of exoplanets, especiall…
ZEN and the search for high-redshift galaxies
J. P. Willis, F. Courbin, J-P. Kneib +1
We present the ZEN (z equals nine) survey: a deep, narrow J-band search for proto-galactic Lya emission at redshifts z=9. In the first phase of the survey, dubbed ZEN1, we combine…
Discovery of a bright quasar without a massive host galaxy
Pierre Magain, Geraldine Letawe, Frederic Courbin +4
Quasars are thought to be powered by the infall of matter onto a supermassive black hole at the centre of massive galaxies. As the optical luminosity of quasars exceeds that of the…
Quasar Lensing: the Observer's Point of View
F. Courbin
The determination of the Hubble parameter H_0 is probably one of the most important applications of quasar lensing. The method, based on the measurement of the so-called ``time-del…
Quasar Lensing
F. Courbin, P. Saha, P. L. Schechter
Massive structures, such as galaxies, act as strong gravitational lenses on background sources. When the background source is a quasar, several lensed images are seen, as magnified…