Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2011-07-19
Astron.Astrophys. 535 (2011) A127
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
10 pages, 6 figures, accepted for publication in A&A. Major revision on the host metallicity
Scientific paper
10.1051/0004-6361/201117726
We perform a detailed study of the gamma-ray burst GRB091127/SN2009nz host galaxy at z=0.490 using the VLT/X-shooter spectrograph in slit and integral-field unit (IFU). From the analysis of the optical and X-ray afterglow data obtained from ground-based telescopes and Swift-XRT we confirm the presence of a bump associated with SN2009nz and find evidence of a possible jet break in the afterglow lightcurve. The X-shooter afterglow spectra reveal several emission lines from the underlying host, from which we derive its integrated properties. These are in agreement with those of previously studied GRB-SN hosts and, more generally, with those of the long GRB host population. We use the Hubble Space Telescope and ground based images of the host to determine its stellar mass (M_star). Our results extend to lower M_star values the M-Z plot derived for the sample of long GRB hosts at 0.3
Antonelli Lucio Angelo
Campana Sergio
Castro-Tirado Alberto J.
Covino Stefano
D'Avanzo Paolo
No associations
LandOfFree
GRB091127/SN2009nz and the VLT/X-shooter spectroscopy of its host galaxy: probing the faint end of the mass-metallicity relation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with GRB091127/SN2009nz and the VLT/X-shooter spectroscopy of its host galaxy: probing the faint end of the mass-metallicity relation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GRB091127/SN2009nz and the VLT/X-shooter spectroscopy of its host galaxy: probing the faint end of the mass-metallicity relation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-33444