Photometry And Spectroscopy Of GRB 060526: A Detailed Study Of The Afterglow And Host Galaxy Of A Z=3.2 Gamma-Ray Burst

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dc.contributor.utaustinauthorWilson, A. C.en_US
dc.creatorThone, C. C.en_US
dc.creatorKann, D. A.en_US
dc.creatorJohannesson, G.en_US
dc.creatorSelj, J. H.en_US
dc.creatorJaunsen, A. O.en_US
dc.creatorFynbo, J. P. U.en_US
dc.creatorAkerlof, C. W.en_US
dc.creatorBaliyan, K. S.en_US
dc.creatorBartolini, C.en_US
dc.creatorBikmaev, I. F.en_US
dc.creatorBloom, J. S.en_US
dc.creatorBurenin, R. A.en_US
dc.creatorCobb, B. E.en_US
dc.creatorCovino, S.en_US
dc.creatorCurran, P. A.en_US
dc.creatorDahle, H.en_US
dc.creatorFerrero, A.en_US
dc.creatorFoley, S.en_US
dc.creatorFrench, J.en_US
dc.creatorFruchter, A. S.en_US
dc.creatorGanesh, S.en_US
dc.creatorGraham, J. F.en_US
dc.creatorGreco, G.en_US
dc.creatorGuarnieri, A.en_US
dc.creatorHanlon, L.en_US
dc.creatorHjorth, J.en_US
dc.creatorIbrahimov, M.en_US
dc.creatorIsrael, G. L.en_US
dc.creatorJakobsson, P.en_US
dc.creatorJelinek, M.en_US
dc.creatorJensen, B. L.en_US
dc.creatorJorgensen, U. G.en_US
dc.creatorKhamitov, I. M.en_US
dc.creatorKoch, T. S.en_US
dc.creatorLevan, A. J.en_US
dc.creatorMalesani, D.en_US
dc.creatorMasetti, N.en_US
dc.creatorMeehan, S.en_US
dc.creatorMelady, G.en_US
dc.creatorNanni, D.en_US
dc.creatorNaranen, J.en_US
dc.creatorPakstiene, E.en_US
dc.creatorPavlinsky, M. N.en_US
dc.creatorPerley, D. A.en_US
dc.creatorPiccioni, A.en_US
dc.creatorPizzichini, G.en_US
dc.creatorPozanenko, A.en_US
dc.creatorRoming, P. W. A.en_US
dc.creatorRujopakarn, W.en_US
dc.creatorRumyantsev, V.en_US
dc.creatorRykoff, E. S.en_US
dc.creatorSharapov, D.en_US
dc.creatorStarr, D.en_US
dc.creatorSunyaev, R. A.en_US
dc.creatorSwan, H.en_US
dc.creatorTanvir, N. R.en_US
dc.creatorTerra, F.en_US
dc.creatorPostigo, A. D.en_US
dc.creatorVreeswijk, P. M.en_US
dc.creatorWilson, A. C.en_US
dc.creatorYost, S. A.en_US
dc.creatorYuan, F.en_US
dc.date.accessioned2016-04-22T19:45:12Z
dc.date.available2016-04-22T19:45:12Z
dc.date.issued2010en
dc.description.abstractAims. With this paper we want to investigate the highly variable afterglow light curve and environment of gamma-ray burst (GRB) 060526 at z = 3.221. Methods. We present one of the largest photometric datasets ever obtained for a GRB afterglow, consisting of multi-color photometric data from the ultraviolet to the near infrared. The data set contains 412 data points in total to which we add additional data from the literature. Furthermore, we present low-resolution high signal-to-noise spectra of the afterglow. The afterglow light curve is modeled with both an analytical model using broken power law fits and with a broad-band numerical model which includes energy injections. The absorption lines detected in the spectra are used to derive column densities using a multi-ion single-component curve-of-growth analysis from which we derive the metallicity of the host of GRB 060526. Results. The temporal behaviour of the afterglow follows a double broken power law with breaks at t = 0.090 +/- 0.005 and t = 2.401 +/- 0.061 days. It shows deviations from the smooth set of power laws that can be modeled by additional energy injections from the central engine, although some significant microvariability remains. The broadband spectral-energy distribution of the afterglow shows no significant extinction along the line of sight. The metallicity derived from S II and Fe II of [S/H] = -0.57 +/- 0.25 and [Fe/H] = -1.09 +/- 0.24 is relatively high for a galaxy at that redshift but comparable to the metallicity of other GRB hosts at similar redshifts. At the position of the afterglow, no host is detected to F775W(AB) = 28.5 mag with the HST, implying an absolute magnitude of the host M(1500 angstrom) > -18.3 mag which is fainter than most long-duration hosts, although the GRB may be associated with a faint galaxy at a distance of 11 kpc.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipDNRFen_US
dc.description.sponsorshipResearch Council of Norwayen_US
dc.description.sponsorshipScience Foundation Ireland 07/RFP/PHYF295en_US
dc.description.sponsorshipEuropean Communityen_US
dc.description.sponsorshipIcelandic Research Funden_US
dc.description.sponsorshipRFFI 09-02-97013-povolzheen_US
dc.description.sponsorshipNWO 639.043.302en_US
dc.description.sponsorshipUniversity of Bolognaen_US
dc.description.sponsorshipIrish Research Council for Science, Engineering and Technologyen_US
dc.identifierdoi:10.15781/T2T78Z
dc.identifier.citationThöne, C. C., D. A. Kann, G. Jóhannesson, J. H. Selj, A. O. Jaunsen, J. P. U. Fynbo, C. W. Akerlof et al. >Photometry and spectroscopy of GRB 060526: a detailed study of the afterglow and host galaxy of az= 3.2 gamma-ray burst.> Astronomy & Astrophysics, Vol. 523 (Jul., 2010): A70.en_US
dc.identifier.doi10.1051/0004-6361/200810340en_US
dc.identifier.issn0004-6361en_US
dc.identifier.urihttp://hdl.handle.net/2152/34379
dc.language.isoEnglishen_US
dc.relation.ispartofserialAstronomy & Astrophysicsen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.subjectgamma rays bursts: individual: grb 060526en_US
dc.subjectgalaxies: high-redshiften_US
dc.subjectism:en_US
dc.subjectabundancesen_US
dc.subjectcosmic chemical evolutionen_US
dc.subjectmass-metallicity relationen_US
dc.subjecthubble-space-telescopeen_US
dc.subjectswift-xrt observationsen_US
dc.subjectfollow-up observationsen_US
dc.subjectstar-formation historyen_US
dc.subjectdamped ly-alphaen_US
dc.subjectx-rayen_US
dc.subjectoptical afterglowen_US
dc.subjecthigh-redshiften_US
dc.subjectastronomy & astrophysicsen_US
dc.titlePhotometry And Spectroscopy Of GRB 060526: A Detailed Study Of The Afterglow And Host Galaxy Of A Z=3.2 Gamma-Ray Bursten_US
dc.typeArticleen_US

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