157 citations · 302 across the 7 of their papers we have counts for
7 papers
QSO Selection and Photometric Redshifts with Neural Networks
Ch. Yeche, P. Petitjean, J. Rich +9
Baryonic Acoustic Oscillations (BAO) and their effects on the matter power spectrum can be studied by using the Lyman-alpha absorption signature of the matter density field along q…
A forming, dust enshrouded disk at z=0.43: the first example of a late type disk rebuilt after a major merger?
F. Hammer, H. Flores, Y. B. Yang +4
Abreg: By combining HST/UDF imagery with kinematics from VLT/GIRAFFE we derive a physical model of distant galaxy J033245.11-274724.0 in a way similar to what can be done in the ne…
A giant bar induced by a merger event at z=0.4?
Sébastien Peirani, Francois Hammer, Hector Flores +2
(Aims) We present a physical model of the formation of J033239.72-275154.7, a galaxy observed at z=0.41 and characterized by a big young bar of size 6 kpc. The study of this system…
Numerical investigation of lenses with substructures using the perturbative method
Sébastien Peirani, Christophe Alard, Christophe Pichon +2
We present a statistical study of the effects induced by substructures on the deflection potential of dark matter halos in the strong lensing regime. This investigation is based on…
Dark Matter Accretion into Supermassive Black Holes
Sébastien Peirani, José Antonio De Freitas Pacheco
The relativistic accretion rate of dark matter by a black hole is revisited. Under the assumption that the phase space density indicator, , remains const…
The role of minor mergers in the recent star formation history of early-type galaxies
Sugata Kaviraj, Sebastien Peirani, Sadegh Khochfar +2
We demonstrate that the large scatter in the ultra-violet (UV) colours of intermediate-mass early-type galaxies in the local Universe and the inferred low-level recent star formati…