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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.author Thöne C.
dc.contributor.author Kann D.
dc.contributor.author Jóhannesson G.
dc.contributor.author Selj J.
dc.contributor.author Jaunsen A.
dc.contributor.author Fynbo J.
dc.contributor.author Akerlof C.
dc.contributor.author Baliyan K.
dc.contributor.author Bartolini C.
dc.contributor.author Bikmaev I.
dc.contributor.author Bloom J.
dc.contributor.author Burenin R.
dc.contributor.author Cobb B.
dc.contributor.author Covino S.
dc.contributor.author Curran P.
dc.contributor.author Dahle H.
dc.contributor.author Ferrero A.
dc.contributor.author Foley S.
dc.contributor.author French J.
dc.contributor.author Fruchter A.
dc.contributor.author Ganesh S.
dc.contributor.author Graham J.
dc.contributor.author Greco G.
dc.contributor.author Guarnieri A.
dc.contributor.author Hanlon L.
dc.contributor.author Hjorth J.
dc.contributor.author Ibrahimov M.
dc.contributor.author Israel G.
dc.contributor.author Jakobsson P.
dc.contributor.author Jelínek M.
dc.contributor.author Jensen B.
dc.contributor.author Jørgensen U.
dc.contributor.author Khamitov I.
dc.contributor.author Koch T.
dc.contributor.author Levan A.
dc.contributor.author Malesani D.
dc.contributor.author Masetti N.
dc.contributor.author Meehan S.
dc.contributor.author Melady G.
dc.contributor.author Nanni D.
dc.contributor.author Näränen J.
dc.contributor.author Pakstiene E.
dc.contributor.author Pavlinsky M.
dc.contributor.author Perley D.
dc.contributor.author Piccioni A.
dc.contributor.author Pizzichini G.
dc.contributor.author Pozanenko A.
dc.contributor.author Roming P.
dc.contributor.author Rujopakarn W.
dc.contributor.author Rumyantsev V.
dc.contributor.author Rykoff E.
dc.contributor.author Sharapov D.
dc.contributor.author Starr D.
dc.contributor.author Sunyaev R.
dc.contributor.author Swan H.
dc.contributor.author Tanvir N.
dc.contributor.author Terra F.
dc.contributor.author De Ugarte Postigo A.
dc.contributor.author Vreeswijk P.
dc.contributor.author Wilson A.
dc.contributor.author Yost S.
dc.contributor.author Yuan F.
dc.date.accessioned 2018-09-18T20:01:37Z
dc.date.available 2018-09-18T20:01:37Z
dc.date.issued 2010
dc.identifier.issn 0004-6361
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/135852
dc.description.abstract Aims: 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 and Fe of [S/H] = -0.57 ±0.25 and [Fe/H] = -1.09±0.24 is relatively high for a galaxy at that redshift but ii ii 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 Å) > -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. © ESO 2010.
dc.relation.ispartofseries Astronomy and Astrophysics
dc.subject galaxies: high-redshift
dc.subject gamma rays bursts: individual: GRB 060526
dc.subject ISM: abundances
dc.title Photometry and spectroscopy of GRB 060526: A detailed study of the afterglow and host galaxy of a z = 3.2 gamma-ray burst
dc.type Article
dc.relation.ispartofseries-issue 5
dc.relation.ispartofseries-volume 523
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS00046361-2010-523-5-SID78549243755

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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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