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A photometric redshift of z = 1.8 (+0.4/-0.3) for the AGILE GRB 080514B

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A photometric redshift of z = 1.8 (+0.4/-0.3) for the AGILE GRB 080514B

dc.contributor.author	Rossi, A.
dc.contributor.author	de Ugarte Postigo, A.
dc.contributor.author	Ferrero, P.
dc.contributor.author	Kann, D. A.
dc.contributor.author	Klose, S.
dc.contributor.author	Schulze, S.
dc.contributor.author	Greiner, J.
dc.contributor.author	Schad, P.
dc.contributor.author	Filgas, R.
dc.contributor.author	Gonsalves, E. E.
dc.contributor.author	Küpcü Yoldas, A.
dc.contributor.author	Krühler, T.
dc.contributor.author	Szokoly, G.
dc.contributor.author	Yoldas, A.
dc.contributor.author	Afonso, P. M. J.
dc.contributor.author	Clemens, C.
dc.contributor.author	Bloom, J. S.
dc.contributor.author	Perley, D. A.
dc.contributor.author	Fynbo, J. P. U.
dc.contributor.author	Castro-Tirado, A. J.
dc.contributor.author	Gorosabel, J.
dc.contributor.author	Kubánek, Petr
dc.contributor.author	Updike, A. C.
dc.contributor.author	Hartmann, D. H.
dc.contributor.author	Giuliani, A.
dc.contributor.author	Holland, S. T.
dc.contributor.author	Hanlon, L.
dc.contributor.author	Bremer, M.
dc.contributor.author	French, J.
dc.contributor.author	Melady, G.
dc.contributor.author	García-Hernández, D. A.
dc.date.accessioned	2010-07-13T07:54:31Z
dc.date.available	2010-07-13T07:54:31Z
dc.date.issued	2008
dc.identifier.citation	Rossi, A., de Ugarte Postigo, A., Ferrero, P., Kann, D. A., Klose, S., Schulze, S., Greiner, J., Schad, P., Filgas, R., Gonsalves, E. E., Küpcü Yoldas, A., Krühler, T., Szokoly, G., Yoldas, A., Afonso, P. M. J., Clemens, C., Bloom, J. S., Perley, D. A., Fynbo, J. P. U., Castro-Tirado, A. J., Gorosabel, J., Kubánek, P., Updike, A. C., Hartmann, D. H., Giuliani, A., Holland, S. T., Hanlon, L., Bremer, M., French, J., Melady, G. and García-Hernández, D. A. (2008): A photometric redshift of z = 1.8 (+0.4/-0.3) for the AGILE GRB 080514B, núm. 491 (2), pp. L29-L32	en
dc.identifier.uri	http://hdl.handle.net/10550/15979
dc.description.abstract	The AGILE gamma-ray burst GRB 080514B is the first detected to have emission above 30 MeV and an optical afterglow. However, no spectroscopic redshift for this burst is known. We report on our ground-based optical/NIR and millimeter follow-up observations of this event at several observatories, including the multi-channel imager GROND on La Silla, supplemented by Swift UVOT and Swift XRT data. The spectral energy distribution (SED) of the optical/NIR afterglow is found to decline sharply bluewards to the UV bands, which can be utilized in estimating the redshift. Fitting the SED from the Swift UVOT uvw2 band to the H band, we estimate a photometric redshift of z = 1.8+0.4, which is consistent with the reported pseudo-redshift based on gamma-ray data. We find that the −0.3 afterglow properties of GRB 080514B do not differ from those exhibited by the global sample of long bursts. Compared with the long burst sample, we conclude that this burst was special because of its high-energy emission properties, even though both its afterglow and host galaxy are not remarkable in any way. Obviously, high-energy emission in the gamma-ray band does not automatically correlate with the occurrence of special features in the corresponding afterglow light.	en
dc.language.iso	en	en
dc.subject	Gamma rays: bursts	en
dc.title	A photometric redshift of z = 1.8 (+0.4/-0.3) for the AGILE GRB 080514B	en
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Otras especialidades astronómicas	en
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Astronomía óptica::Otras	en
dc.identifier.doi	10.1051/0004-6361:200810736	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361:200810736&Itemid=129	en