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The CHilean Automatic Supernova sEarch (CHASE)
G. Pignata, J. Maza, M. Hamuy +16
The CHASE project started in 2007 with the aim of providing young southern supernovae (SNe) to the Carnegie Supernova Project (CSP) and Millennium Center for Supernova Studies (MCS…
Disentangling age and metallicity in distant unresolved stellar systems
M. Cantiello, E. Brocato, G. Raimondo
We present some results of an observational and theoretical study on unresolved stellar systems based on the Surface Brightness Fluctuations (SBF) technique. It is shown that SBF m…
Integral-field spectroscopy of SLACS lenses
Oliver Czoske, Matteo Barnabe, Leon Koopmans
The combination of two-dimensional kinematics and gravitational lens modelling permits detailed reconstruction of the phase-space structure of early-type galaxies and sets constrai…
Spectral luminosity indicators in SNe Ia - Understanding the R(SiII) line strength ratio and beyond
Stephan Hachinger, Paolo A. Mazzali, Masaomi Tanaka +2
SNe Ia are good distance indicators because the shape of their light curves, which can be measured independently of distance, varies smoothly with luminosity. This suggests that SN…
Optical and NIR Observations of the Afterglow of GRB 020813
S. Covino, D. Malesani, F. Tavecchio +28
We present optical and near-infrared (NIR) photometry of the bright afterglow of GRB 020813. Our data span from 3 hours to 4 days after the GRB event. A rather sharp achromatic bre…
GRB 990704: the most X-ray rich BeppoSAX gamma-ray burst
M. Feroci, L. A. Antonelli, P. Soffitta +8
We present the X- and -ray detection of GRB 990704 and the discovery and study of its X-ray afterglow, 1SAX J1219.5-0350. Two pointed BeppoSAX observations with the narrow field…
The flat X-ray spectrum of the LINER NGC1052
M. Guainazzi, L. A. Antonelli
We report on ROSAT and ASCA observations of the LINER NGC1052, which is the first one where broad optical lines in polarized light have been observed. The 2-10 keV spectrum is very…
BeppoSAX observations of GRB970402
L. Nicastro, L. Amati, L. A. Antonelli +10
GRB970402 is the fourth gamma-ray burst detected by BeppoSAX simultaneously in the Gamma Ray Burst Monitor (GRBM) and one of the two Wide Field Cameras (WFCs). A rapid pointing of…
BeppoSAX follow-up search for the X-ray afterglow of GRB970111
M. Feroci, L. A. Antonelli, M. Guainazzi +17
The BeppoSAX satellite has recently opened a new way towards the solution of the long standing gamma-ray bursts' (GRBs) enigma, providing accurate coordinates few hours after the e…