GRB 080913 at redshift 6.7

J. Greiner; T. Krühler; J. P. U. Fynbo; A. Rossi; R. Schwarz; S. Klose; S. Savaglio; N. R. Tanvir; S. McBreen; T. Totani; B. B. Zhang; X. F. Wu; D. Watson; S. D. Barthelmy; A. P. Beardmore; P. Ferrero; N. Gehrels; D. A. Kann; N. Kawai; A. Küpcü Yoldas; P. Mészáros; B. Milvang-Jensen; S. R. Oates; D. Pierini; P. Schady; K. Toma; P. M. Vreeswijk; A. Yoldas; B. Zhang; P. Afonso; K. Aoki; D. N. Burrows; C. Clemens; R. Filgas; Z. Haiman; D. H. Hartmann; G. Hasinger; J. Hjorth; E. Jehin; A. J. Levan; E. W. Liang; D. Malesani; T.-S. Pyo; S. Schulze; G. Szokoly; K. Terada; K. Wiersema

doi:10.1088/0004-637X/693/2/1610

GRB 080913 at redshift 6.7

J. Greiner, T. Krühler, J. P. U. Fynbo, A. Rossi, R. Schwarz, S. Klose, S. Savaglio, N. R. Tanvir, S. McBreen, T. Totani, B. B. Zhang, X. F. Wu, D. Watson, S. D. Barthelmy, A. P. Beardmore, P. Ferrero, N. Gehrels, D. A. Kann, N. Kawai, A. Küpcü YoldasP. Mészáros, B. Milvang-Jensen, S. R. Oates, D. Pierini, P. Schady, K. Toma, P. M. Vreeswijk, A. Yoldas, B. Zhang, P. Afonso, K. Aoki, D. N. Burrows, C. Clemens, R. Filgas, Z. Haiman, D. H. Hartmann, G. Hasinger, J. Hjorth, E. Jehin, A. J. Levan, E. W. Liang, D. Malesani, T.-S. Pyo, S. Schulze, G. Szokoly, K. Terada, K. Wiersema

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189 Citations (Scopus)

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 ¿ = 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.

Original language	English
Journal	Astrophysical Journal
Volume	693
Issue number	2
Pages (from-to)	1610-1620
Number of pages	10
ISSN	0004-637X
DOIs	https://doi.org/10.1088/0004-637X/693/2/1610
Publication status	Published - 2009

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10.1088/0004-637X/693/2/1610

http://adsabs.harvard.edu/abs/2009ApJ...693.1610G

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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., ... Wiersema, K. (2009). GRB 080913 at redshift 6.7. Astrophysical Journal, 693(2), 1610-1620. https://doi.org/10.1088/0004-637X/693/2/1610

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, Yoldas, AK, Mészáros, P, Milvang-Jensen, B, Oates, SR, Pierini, D, Schady, P, Toma, K, Vreeswijk, PM, Yoldas, 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', Astrophysical Journal, vol. 693, no. 2, pp. 1610-1620. https://doi.org/10.1088/0004-637X/693/2/1610

@article{eb67633069fc11de8bc9000ea68e967b,

title = "GRB 080913 at redshift 6.7",

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 ¿ = 9400 {\AA}, and zero flux for 7500 {\AA}<¿ < 9400 {\AA}, 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.",

author = "J. Greiner and T. Kr{\"u}hler and Fynbo, {J. P. U.} and A. Rossi and R. Schwarz and S. Klose and S. Savaglio and Tanvir, {N. R.} and S. McBreen and T. Totani and Zhang, {B. B.} and Wu, {X. F.} and D. Watson and Barthelmy, {S. D.} and Beardmore, {A. P.} and P. Ferrero and N. Gehrels and Kann, {D. A.} and N. Kawai and Yoldas, {A. K{\"u}pc{\"u}} and P. M{\'e}sz{\'a}ros and B. Milvang-Jensen and Oates, {S. R.} and D. Pierini and P. Schady and K. Toma and Vreeswijk, {P. M.} and A. Yoldas and B. Zhang and P. Afonso and K. Aoki and Burrows, {D. N.} and C. Clemens and R. Filgas and Z. Haiman and Hartmann, {D. H.} and G. Hasinger and J. Hjorth and E. Jehin and Levan, {A. J.} and Liang, {E. W.} and D. Malesani and T.-S. Pyo and S. Schulze and G. Szokoly and K. Terada and K. Wiersema",

note = "Keywords: early universe; gamma rays: bursts; radiation mechanisms: non-thermal",

year = "2009",

doi = "10.1088/0004-637X/693/2/1610",

language = "English",

volume = "693",

pages = "1610--1620",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "Institute of Physics Publishing, Inc",

number = "2",

}

TY - JOUR

T1 - GRB 080913 at redshift 6.7

AU - Greiner, J.

AU - Krühler, T.

AU - Fynbo, J. P. U.

AU - Rossi, A.

AU - Schwarz, R.

AU - Klose, S.

AU - Savaglio, S.

AU - Tanvir, N. R.

AU - McBreen, S.

AU - Totani, T.

AU - Zhang, B. B.

AU - Wu, X. F.

AU - Watson, D.

AU - Barthelmy, S. D.

AU - Beardmore, A. P.

AU - Ferrero, P.

AU - Gehrels, N.

AU - Kann, D. A.

AU - Kawai, N.

AU - Yoldas, A. Küpcü

AU - Mészáros, P.

AU - Milvang-Jensen, B.

AU - Oates, S. R.

AU - Pierini, D.

AU - Schady, P.

AU - Toma, K.

AU - Vreeswijk, P. M.

AU - Yoldas, A.

AU - Zhang, B.

AU - Afonso, P.

AU - Aoki, K.

AU - Burrows, D. N.

AU - Clemens, C.

AU - Filgas, R.

AU - Haiman, Z.

AU - Hartmann, D. H.

AU - Hasinger, G.

AU - Hjorth, J.

AU - Jehin, E.

AU - Levan, A. J.

AU - Liang, E. W.

AU - Malesani, D.

AU - Pyo, T.-S.

AU - Schulze, S.

AU - Szokoly, G.

AU - Terada, K.

AU - Wiersema, K.

N1 - Keywords: early universe; gamma rays: bursts; radiation mechanisms: non-thermal

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

U2 - 10.1088/0004-637X/693/2/1610

DO - 10.1088/0004-637X/693/2/1610

M3 - Journal article

SN - 0004-637X

VL - 693

SP - 1610

EP - 1620

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

ER -

GRB 080913 at redshift 6.7

Abstract

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