Please use this identifier to cite or link to this item:
|Title:||Discovery of the afterglow and host galaxy of the low-redshift short GRB 080905A|
Tanvir, N. R.
O'Brien, P. T.
Levan, A. J.
Fynbo, J. P. U.
Thöne, C. C.
De Ugarte Postigo A.
|Publisher:||Oxford University Press (OUP)|
|Citation:||Monthly Notices of the Royal Astronomical Society, 2010, 408 (1), pp. 383-391|
|Abstract:||We present the discovery of short GRB 080905A, its optical afterglow and host galaxy. Initially discovered by Swift, our deep optical observations enabled the identification of a faint optical afterglow, and subsequently a face-on spiral host galaxy underlying the GRB position, with a chance alignment probability of <1 per cent. There is no supernova component present in the afterglow to deep limits. Spectroscopy of the galaxy provides a redshift of z= 0.1218, the lowest redshift yet observed for a short GRB. The GRB lies offset from the host galaxy centre by ∼ 18.5 kpc, in the northern spiral arm which exhibits an older stellar population than the southern arm. No emission lines are visible directly under the burst position, implying little ongoing star formation at the burst location. These properties would naturally be explained were the progenitor of GRB 080905A a compact binary merger.|
|Rights:||This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2010 the authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. Deposited with reference to the publisher’s archiving policy available on the SHERPA/RoMEO website.|
|Appears in Collections:||Published Articles, Dept. of Physics and Astronomy|
Files in This Item:
|MNRAS-2010-Rowlinson-383-91.pdf||Published (publisher PDF)||20.22 MB||Adobe PDF||View/Open|
Items in LRA are protected by copyright, with all rights reserved, unless otherwise indicated.