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GRB 080913 at redshift 6.7
- Source :
- Greiner , J , Krühler , T , Fynbo , J P U , Rossi , A , Schwarz , R , Klose , S , Savaglio , S , Tanvir , N R , McBreen , S , Totani , T , Zhang , B B , Wu , X F , Watson , D , Barthelmy , S D , Beardmore , A P , Ferrero , P , Gehrels , N , Kann , D A , Kawai , N , Yoldas , A K , Mészáros , P , Milvang-Jensen , B , Oates , S R , Pierini , D , Schady , P , Toma , K , Vreeswijk , P M , Yoldas , A , Zhang , B , Afonso , P , Aoki , K , Burrows , D N , Clemens , C , Filgas , R , Haiman , Z , Hartmann , D H , Hasinger , G , Hjorth , J , Jehin , E , Levan , A J , Liang , E W , Malesani , D , Pyo , T-S , Schulze , S , Szokoly , G , Terada , K & Wiersema , K 2009 , ' GRB 080913 at redshift 6.7 ' , Astrophysical Journal , vol. 693 , no. 2 , pp. 1610-1620 .
- Publication Year :
- 2009
-
Abstract
- Udgivelsesdato: March 10<br />We report on the detection by Swift of GRB 080913, and subsequent optical/near-infrared follow-up observations by GROND, which led to the discovery of its optical/NIR afterglow and the recognition of its high-z nature via the detection of a spectral break between the i' and z' bands. Spectroscopy obtained at the ESO-VLT revealed a continuum extending down to ¿ = 9400 Å, and zero flux for 7500 Å<¿ < 9400 Å, which we interpret as the onset of a Gunn-Peterson trough at z = 6.695± 0.025 (95.5% confidence level), making GRB 080913 the highest-redshift gamma-ray burst (GRB) to date, and more distant than the highest-redshift QSO. We note that many redshift indicators that are based on promptly available burst or afterglow properties have failed for GRB 080913. We report on our follow-up campaign and compare the properties of GRB 080913 with bursts at lower redshift. In particular, since the afterglow of this burst is fainter than typical for GRBs, we show that 2 m class telescopes can identify most high-redshift GRBs.
Details
- Database :
- OAIster
- Journal :
- Greiner , J , Krühler , T , Fynbo , J P U , Rossi , A , Schwarz , R , Klose , S , Savaglio , S , Tanvir , N R , McBreen , S , Totani , T , Zhang , B B , Wu , X F , Watson , D , Barthelmy , S D , Beardmore , A P , Ferrero , P , Gehrels , N , Kann , D A , Kawai , N , Yoldas , A K , Mészáros , P , Milvang-Jensen , B , Oates , S R , Pierini , D , Schady , P , Toma , K , Vreeswijk , P M , Yoldas , A , Zhang , B , Afonso , P , Aoki , K , Burrows , D N , Clemens , C , Filgas , R , Haiman , Z , Hartmann , D H , Hasinger , G , Hjorth , J , Jehin , E , Levan , A J , Liang , E W , Malesani , D , Pyo , T-S , Schulze , S , Szokoly , G , Terada , K & Wiersema , K 2009 , ' GRB 080913 at redshift 6.7 ' , Astrophysical Journal , vol. 693 , no. 2 , pp. 1610-1620 .
- Notes :
- English
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1348988713
- Document Type :
- Electronic Resource