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GRB 091127/SN 2009n...
GRB 091127/SN 2009nz and the VLT/X-shooter spectroscopy of its host galaxy : probing the faint end of the mass-metallicity relation
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Vergani, S. D. (author)
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Flores, H. (author)
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Covino, S. (author)
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Fugazza, D. (author)
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Gorosabel, J. (author)
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Levan, A. J. (author)
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Puech, M. (author)
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Salvaterra, R. (author)
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Tello, J. C. (author)
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de Ugarte Postigo, A. (author)
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D'Avanzo, P. (author)
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D'Elia, V. (author)
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Fernández, M. (author)
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Fynbo, J. P. U. (author)
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Ghirlanda, G. (author)
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Jelínek, M. (author)
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Lundgren, A. (author)
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Malesani, D. (author)
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Palazzi, E. (author)
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Piranomonte, S. (author)
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Rodrigues, M. (author)
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Sánchez-Ramírez, R. (author)
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Terrón, V. (author)
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Thöne, C. C. (author)
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Antonelli, L. A. (author)
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Campana, S. (author)
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Castro-Tirado, A. J. (author)
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Goldoni, P. (author)
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Hammer, F. (author)
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Hjorth, J. (author)
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Jakobsson, P. (author)
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Kaper, L. (author)
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Melandri, A. (author)
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Milvang-Jensen, B. (author)
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- Sollerman, Jesper (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Tagliaferri, G. (author)
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Tanvir, N. R. (author)
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Wiersema, K. (author)
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Wijers, R. A. M. J. (author)
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(creator_code:org_t)
- 2011-11-30
- 2011
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 535, s. A127-
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https://www.aanda.or...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We perform a detailed study of the gamma-ray burst GRB 091127/SN 2009nz host galaxy at z = 0.490 using the VLT/X-shooter spectrograph in slit and integral-field unit (IFU) mode. From the analysis of the optical and X-ray afterglow data obtained from ground-based telescopes and Swift-XRT, we confirm the presence of a bump associated with SN 2009nz and find evidence of a possible jet break in the afterglow lightcurve. The X-shooter afterglow spectra reveal several emission lines from the underlying host, from which we derive its integrated properties. These properties agree with those of previously studied GRB-SN hosts and, more generally, with those of the long GRB host population. We use the Hubble Space Telescope and ground-based images of the host to determine its stellar mass (M⋆). Our results extend to lower M⋆ values the M-Z plot derived for the sample of long GRB hosts at 0.3 < z < 1.0 adding new information to probe the faint end of the M-Z relation and the shift of the LGRB host M-Z relation from that found from emission-line galaxy surveys. Thanks to the IFU spectroscopy, we can build the two-dimensional (2D) velocity, velocity dispersion, and star formation rate (SFR) maps. They show that the host galaxy has perturbed rotation kinematics with evidence of a SFR enhancement consistent with the afterglow position. Based on observations made with ESO Telescopes at Paranal Observatory under programmes ID 084.A-0260 and 086.A-0874.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- gamma-ray burst: individual: GRB 091127
- supernovae: individual: SN 2009nz
- galaxies: ISM
- galaxies: evolution
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Vergani, S. D.
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Flores, H.
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Covino, S.
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Fugazza, D.
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Gorosabel, J.
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Levan, A. J.
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show more...
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Puech, M.
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Salvaterra, R.
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Tello, J. C.
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de Ugarte Postig ...
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D'Avanzo, P.
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D'Elia, V.
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Fernández, M.
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Fynbo, J. P. U.
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Ghirlanda, G.
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Jelínek, M.
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Lundgren, A.
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Malesani, D.
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Palazzi, E.
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Piranomonte, S.
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Rodrigues, M.
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Sánchez-Ramírez, ...
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Terrón, V.
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Thöne, C. C.
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Antonelli, L. A.
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Campana, S.
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Castro-Tirado, A ...
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Goldoni, P.
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Hammer, F.
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Hjorth, J.
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Jakobsson, P.
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Kaper, L.
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Melandri, A.
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Milvang-Jensen, ...
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Sollerman, Jespe ...
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Tagliaferri, G.
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Tanvir, N. R.
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Wiersema, K.
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Wijers, R. A. M. ...
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show less...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Stockholm University