GRB050904 at redshift 6.3:: observations of the oldest cosmic explosion after the Big Bang

被引：115

作者：

Tagliaferri, G

Antonelli, LA

Chincarini, G

Fernández-Soto, A

Malesani, D

Della Valle, M

D'Avanzo, P

Grazian, A

Testa, V

Campana, S

Covino, S

Fiore, F

Stella, L

Castro-Tirado, AJ

Gorosabel, J

Burrows, DN

Capalbi, M

Cusumano, G

Conciatore, ML

D'Elia, V

Filliatre, P

Fugazza, D

Gehrels, N

Guetta, D

Guziy, S

Held, EV

Hurley, K

Israel, GL

Jelínek, M

Lazzati, D

López-Echarri, A

Melandri, A

Mirabel, IF

Moles, M

Moretti, A

Mason, KO

Nousek, J

Osborne, J

Pellizza, LJ

Perna, R

Piranomonte, S

Piro, L

Postigo, AD

Romano, P

机构：

[1] INAF, Osservatorio Astron Brera, I-23807 Merate, Lc, Italy

[2] INAF, Osservatorio Astron Roma, I-00040 Rome, Italy

[3] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy

[4] Univ Valencia, Astron Observ, Valencia 46071, Spain

[5] ISAS, SISSA, I-34014 Trieste, Italy

[6] INAF, Osservatorio Astrofis Arcetri, I-50125 Florence, Italy

[7] Univ Insubria, Dipartimento Matemat & Fis, I-22100 Como, Italy

[8] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain

[9] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[10] ASI Sci Data Ctr, I-00044 Frascati, Roma, Italy

[11] INAF, IASF, Sez Palermo, I-90146 Palermo, Italy

[12] Lab Astroparticule & Cosmol, UMR 7164, F-75231 Paris, France

[13] CEA Saclay, DAPNIA, DSM, Serv Astrophys, F-91911 Gif Sur Yvette, France

[14] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[15] INAF, Osservatorio Astron Padova, I-35122 Padua, Italy

[16] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[17] Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA

[18] Inst Astrofis Canarias, Tenerife 38200, Spain

[19] Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, Ca, Italy

[20] European So Observ Vitacura, Santiago 19, Chile

[21] UCL, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[22] Univ Leicester, Dept Phys & Astron, Xray & Observat Astron Grp, Leicester LE1 7RH, Leics, England

[23] Univ Paris 07, CEA Saclay, Serv Astrophys, AIM,CNRS,UMR 7158, F-91191 Gif Sur Yvette, France

[24] INAF, IASF, Sez Roma, I-00133 Rome, Italy

来源：

ASTRONOMY & ASTROPHYSICS | 2005年 / 443卷 / 01期

关键词：

cosmology : observations; early Universe; gamma rays : bursts; gamma rays : individual : GRB 050904;

D O I：

10.1051/0004-6361:200500196

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present optical and near-infrared observations of the afterglow of the gamma-ray burst GRB050904. We derive a photometric redshift z = 6.3, estimated from the presence of the Lyman break falling between the I and J filters. This is by far the most distant GRB known to date. Its isotropic-equivalent energy is 3.4 x 10(53) erg in the rest- frame 110 110- 1100 keV energy band. Despite the high redshift, both the prompt and the afterglow emission are not peculiar with respect to other GRBs. We find a break in the J-band light curve at - t(b) = 2.6 +/- 1.0 d ( observer frame). If we assume this is the jet break, we derive a beaming-corrected energy E-gamma similar to (4 divided by 12) x 10(51) erg. This limit shows that GRB050904 is consistent with the Amati and Ghirlanda relations. This detection is consistent with the expected number of GRBs at z > 6 and shows that GRBs are a powerful tool to study the star formation history up to very high redshift.

引用

页码：L1 / L5

页数：5

共 54 条

[1] Intrinsic spectra and energetics of BeppoSAX Gamma-Ray Bursts with known redshifts [J].

Amati, L ;

Frontera, F ;

Tavani, M ;

in't Zand, JJM ;

Antonelli, A ;

Costa, E ;

Feroci, M ;

Guidorzi, C ;

Heise, J ;

Masetti, N ;

Montanari, E ;

Nicastro, L ;

Palazzi, E ;

Pian, E ;

Piro, L ;

Soffitta, P .

ASTRONOMY & ASTROPHYSICS, 2002, 390 (01) :81-89

[2]

Andersen MI, 2000, ASTRON ASTROPHYS, V364, pL54

[3]

ANTONELLI LA, 2005, GCN, V3924

[4]

BARTHELMY SD, 2005, IN PRESS SPACE SCI R

[5] SExtractor: Software for source extraction [J].

Bertin, E ;

Arnouts, S .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1996, 117 (02) :393-404

[6]

BROMM V, 2005, UNPUB APJ

[7]

CHEN HW, 2005, UNPUB APJ

[8]

Chincarini G., 2003, MESSENGER, V113, P40

[9]

CUCCHIARA A, 2005, GCN, V3923

[10]

CUMMINGS J, 2005, GCN, V3910

← 1 2 3 4 5 6 →