GRB 080913 at redshift 6.7
Greiner J, Krühler T, Fynbo JPU, Rossi A, Schwarz R, Klose S, Savaglio S, Tanvir NR, McBreen S, Totani T, Zhang BB, Wu XF, Watson D, Barthelmy SD, Beardmore AP, Ferrero P, Gehrels N, Kann DA, Kawai N, Yoldaş AK, Mészáros P, Milvang-Jensen B, Oates SR, Pierini D, Schady P, Toma K, Vreeswijk PM, Yoldaş A, Zhang B, Afonso P, Aoki K, Burrows DN, Clemens C, Filgas R, Haiman Z, Hartmann DH, Hasinger G, Hjorth J, Jehin E, Levan AJ, Liang EW, Malesani D, Pyo T-S, Schulze S, Szokoly G, Terada K, Wiersema K. 2009. GRB 080913 at redshift 6.7. The Astrophysical Journal. 693(2), 1610–1620.
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Author
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.
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All
Abstract
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 λ = 9400 Å, and zero flux for 7500 Å<λ < 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.
Publishing Year
Date Published
2009-03-10
Journal Title
The Astrophysical Journal
Publisher
American Astronomical Society
Volume
693
Issue
2
Page
1610-1620
ISSN
eISSN
IST-REx-ID
Cite this
Greiner J, Krühler T, Fynbo JPU, et al. GRB 080913 at redshift 6.7. The Astrophysical Journal. 2009;693(2):1610-1620. doi:10.1088/0004-637x/693/2/1610
Greiner, J., Krühler, T., Fynbo, J. P. U., Rossi, A., Schwarz, R., Klose, S., … Wiersema, K. (2009). GRB 080913 at redshift 6.7. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.1088/0004-637x/693/2/1610
Greiner, J., T. Krühler, J. P. U. Fynbo, A. Rossi, R. Schwarz, S. Klose, S. Savaglio, et al. “GRB 080913 at Redshift 6.7.” The Astrophysical Journal. American Astronomical Society, 2009. https://doi.org/10.1088/0004-637x/693/2/1610.
J. Greiner et al., “GRB 080913 at redshift 6.7,” The Astrophysical Journal, vol. 693, no. 2. American Astronomical Society, pp. 1610–1620, 2009.
Greiner J, Krühler T, Fynbo JPU, Rossi A, Schwarz R, Klose S, Savaglio S, Tanvir NR, McBreen S, Totani T, Zhang BB, Wu XF, Watson D, Barthelmy SD, Beardmore AP, Ferrero P, Gehrels N, Kann DA, Kawai N, Yoldaş AK, Mészáros P, Milvang-Jensen B, Oates SR, Pierini D, Schady P, Toma K, Vreeswijk PM, Yoldaş A, Zhang B, Afonso P, Aoki K, Burrows DN, Clemens C, Filgas R, Haiman Z, Hartmann DH, Hasinger G, Hjorth J, Jehin E, Levan AJ, Liang EW, Malesani D, Pyo T-S, Schulze S, Szokoly G, Terada K, Wiersema K. 2009. GRB 080913 at redshift 6.7. The Astrophysical Journal. 693(2), 1610–1620.
Greiner, J., et al. “GRB 080913 at Redshift 6.7.” The Astrophysical Journal, vol. 693, no. 2, American Astronomical Society, 2009, pp. 1610–20, doi:10.1088/0004-637x/693/2/1610.
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