Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-09-23
Astron.Astrophys. 425 (2004) L33-L36
Astronomy and Astrophysics
Astrophysics
5 pages
Scientific paper
10.1051/0004-6361:200400058
The hard X-ray (2-10keV) luminosity of a star-forming galaxy tracks its population of high mass X-ray binaries and is essentially unobscured. It is therefore a practically unbiased measure of star-formation in the host galaxies of gamma-ray bursts (GRBs). Using recent and archival observations of GRBs with the XMM-Newton and Chandra X-ray observatories, limits are placed on the underlying X-ray emission from GRB hosts. Useful limits on the current massive star-formation rates (SFRs), unaffected by obscuration, are obtained for the hosts of three low redshift GRBs: GRB980425, GRB030329 and GRB031203. These limits show that though the specific SFRs may be high (as in dwarf starburst galaxies), none have massive obscured star-formation at the levels implied by the sub-mm detection of some GRB hosts. It is also shown that in cases where the faint luminosities of the late time afterglow or supernova emission are of interest, the contribution of the host galaxy to the X-ray flux may be significant.
Hjorth Jens
Jakobsson Páll
Kouveliotou Chryssa
Patel Sandeep
Pedersen Karsten
No associations
LandOfFree
Massive star-formation rates of gamma-ray burst host galaxies: an unobscured view in X-rays 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 Massive star-formation rates of gamma-ray burst host galaxies: an unobscured view in X-rays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Massive star-formation rates of gamma-ray burst host galaxies: an unobscured view in X-rays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-77170