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Spectoscopic evidence for SN 2010ma associated with GRB 101219B
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(2011) Spectoscopic evidence for SN 2010ma associated with GRB 101219B. The Astrophysical Journal, Vol.735 (No.1). L24. doi:10.1088/2041-8205/735/1/L24 ISSN 0004-637X.
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Official URL: http://dx.doi.org/10.1088/2041-8205/735/1/L24
Abstract
We report on the spectroscopic detection of supernova SN 2010ma associated with the long gamma-ray burst GRB 101219B. We observed the optical counterpart of the GRB on three nights with the X-shooter spectrograph at the Very Large Telescope. From weak absorption lines, we measure a redshift of z = 0.55. The first-epoch UV-near-infrared afterglow spectrum, taken 11.6 hr after the burst, is well fit by a power law consistent with the slope of the X-ray spectrum. The second-and third-epoch spectra (obtained 16.4 and 36.7 days after the burst), however, display clear bumps closely resembling those of the broad-lined type-Ic SN 1998bw if placed at z = 0.55. Apart from demonstrating that spectroscopic SN signatures can be observed for GRBs at these large distances, our discovery makes a step forward in establishing a general connection between GRBs and SNe. In fact, unlike most previous unambiguous GRB-associated SNe, GRB 101219B has a large gamma-ray energy (E(iso) = 4.2x10(51) erg), a bright afterglow, and obeys the "Amati" relation, thus being fully consistent with the cosmological population of GRBs
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QB Astronomy | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Supernovae, Supernovae -- Spectra, Gamma ray bursts | ||||
| Journal or Publication Title: | The Astrophysical Journal | ||||
| Publisher: | Institute of Physics Publishing, Inc. | ||||
| ISSN: | 0004-637X | ||||
| Official Date: | July 2011 | ||||
| Dates: |
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| Volume: | Vol.735 | ||||
| Number: | No.1 | ||||
| Page Range: | L24 | ||||
| DOI: | 10.1088/2041-8205/735/1/L24 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Funder: | Danmarks Grundforskningsfond [Danish National Research Foundation], Carlsbergfondet (Copenhagen, Denmark) [Carlsberg Foundation], European Research Council (ERC), Icelandic Research Fund (IRF) | ||||
| Grant number: | 247450 (ERC) |
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