An enigmatic long-lasting γ-ray burst not accompanied by a bright supernova

被引:382
作者
Della Valle, M.
Chincarini, G.
Panagia, N.
Tagliaferri, G.
Malesani, D.
Testa, V.
Fugazza, D.
Campana, S.
Covino, S.
Mangano, V.
Antonelli, L. A.
D'Avanzo, P.
Hurley, K.
Mirabel, I. F.
Pellizza, L. J.
Piranomonte, S.
Stella, L.
机构
[1] Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy
[2] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy
[3] Osserv Astron Brera, INAF, I-23807 Merate, Lc, Italy
[4] Space Telescope Sci Inst, Baltimore, MD 21218 USA
[5] Ist Nazl Astrofis, I-00136 Rome, Italy
[6] Supernova Ltd, Virgin Gorda, VI USA
[7] SISSA, ISAS, I-34014 Trieste, Italy
[8] Osserv Astron Roma, INAF, I-00040 Rome, Italy
[9] Ist Astrofis Spaziale & Fis Cosm, INAF, I-90146 Palermo, Italy
[10] ASI Sci Data Ctr, I-00044 Frascati, Italy
[11] Univ Insubria, Dipartimento Matemat & Fis, I-22100 Como, Italy
[12] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
[13] European So Observ, Santiago 19, Chile
[14] Univ Buenos Aires, CONICET, Inst Astron & Fis Espacio, RA-1428 Buenos Aires, DF, Argentina
关键词
D O I
10.1038/nature05374
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Gamma-ray bursts (GRBs) are short, intense flashes of soft gamma-rays coming from the distant Universe. Long-duration GRBs ( those lasting more than similar to 2 s) are believed to originate from the deaths of massive stars 1, mainly on the basis of a handful of solid associations between GRBs and supernovae(2-7). GRB 060614, one of the closest GRBs discovered, consisted of a 5-s hard spike followed by softer, brighter emission that lasted for similar to 100 s (refs 8, 9). Here we report deep optical observations of GRB 060614 showing no emerging supernova with absolute visual magnitude brighter than M-V = -13.7. Any supernova associated with GRB 060614 was therefore at least 100 times fainter, at optical wavelengths, than the other supernovae associated with GRBs(10). This demonstrates that some long-lasting GRBs can either be associated with a very faint supernova or produced by different phenomena.
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页码:1050 / 1052
页数:3
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