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GRB 081203A: Swift UVOT captures the earliest ultraviolet spectrum of a gamma-ray burst

dc.contributor.authorRoming, P. W. A.
dc.contributor.authorCarter, M.
dc.contributor.authorBrown, P. J.
dc.contributor.authorDE PASQUALE, Massımılıano
dc.contributor.authorParsons, A.
dc.contributor.authorKuin, N. P. M.
dc.contributor.authorLandsman, W.
dc.contributor.authorPage, M. J.
dc.contributor.authorSchady, P.
dc.contributor.authorStill, M.
dc.contributor.authorBreeveld, A. A.
dc.contributor.authorPalmer, D. M.
dc.contributor.authorSmith, P. J.
dc.contributor.authorOates, S. R.
dc.contributor.authorMarshall, F. E.
dc.contributor.authorLamoureux, H.
dc.contributor.authorKoch, S.
dc.contributor.authorKennedy, T.
dc.contributor.authorHunsberger, S.
dc.contributor.authorHoversten, E. A.
dc.contributor.authorHolland, S. T.
dc.contributor.authorGronwall, C.
dc.contributor.authorCucchiara, A.
dc.contributor.authorCurran, P. A.
dc.contributor.authorJames, C.
dc.date.accessioned2022-02-18T11:24:13Z
dc.date.available2022-02-18T11:24:13Z
dc.date.issued2009
dc.identifier.citationKuin N. P. M. , Landsman W., Page M. J. , Schady P., Still M., Breeveld A. A. , DE PASQUALE M., Roming P. W. A. , Brown P. J. , Carter M., et al., "GRB 081203A: Swift UVOT captures the earliest ultraviolet spectrum of a gamma-ray burst", MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, cilt.395, sa.1, 2009
dc.identifier.issn0035-8711
dc.identifier.othervv_1032021
dc.identifier.otherav_f40521e3-4bd9-43f9-8ffd-8dad66230a53
dc.identifier.urihttp://hdl.handle.net/20.500.12627/181119
dc.identifier.urihttps://doi.org/10.1111/j.1745-3933.2009.00632.x
dc.description.abstractWe present the earliest ultraviolet (UV) spectrum of a gamma-ray burst (GRB) as observed with the Swift Ultra-Violet/Optical Telescope (UVOT). The GRB 081203A spectrum was observed for 50 s with the UV-grism starting 251 s after the Swift-Burst-Alert-Telescope (BAT) trigger. During this time, the GRB was approximate to 13.4 mag (u filter) and was still rising to its peak optical brightness. In the UV-grism spectrum, we find a damped Ly alpha line, Ly beta and the Lyman continuum break at a redshift z = 2.05 +/- 0.01. A model fit to the Lyman absorption implies a gas column density of log N-HI = 22.0 +/- 0.1 cm(-2), which is typical of GRB host galaxies with damped Ly alpha absorbers. This observation of GRB 081203A demonstrates that for brighter GRBs (v approximate to 14 mag) with moderate redshift (0.5 < z < 3.5) the UVOT is able to provide redshifts, and probe for damped Ly alpha absorbers within 4-6 min from the time of the Swift-BAT trigger.
dc.language.isoeng
dc.subjectSpace and Planetary Science
dc.subjectPhysics and Astronomy (miscellaneous)
dc.subjectTemel Bilimler
dc.subjectAstronomi ve Astrofizik
dc.subjectFizik
dc.subjectTemel Bilimler (SCI)
dc.subjectUzay bilimi
dc.subjectASTRONOMİ VE ASTROFİZİK
dc.subjectPhysical Sciences
dc.subjectAstronomy and Astrophysics
dc.subjectGeneral Physics and Astronomy
dc.titleGRB 081203A: Swift UVOT captures the earliest ultraviolet spectrum of a gamma-ray burst
dc.typeMakale
dc.relation.journalMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
dc.contributor.departmentUniversity Of London , ,
dc.identifier.volume395
dc.identifier.issue1
dc.contributor.firstauthorID3376729


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