On the Lyα emission from gamma-ray burst host galaxies: Evidence for low metallicities

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On the Lyα emission from gamma-ray burst host galaxies : Evidence for low metallicities. / Fynbo, J. P.U.; Jakobsson, P.; Møller, P.; Hjorth, J.; Thomsen, B.; Andersen, M. I.; Fruchter, A. S.; Gorosabel, J.; Holland, S. T.; Ledoux, C.; Pedersen, H.; Rhoads, J.; Weidinger, M.; Wijers, R. A.M.J.

In: Astronomy and Astrophysics, Vol. 406, No. 3, 08.2003, p. L63-L66.

Research output: Contribution to journalLetterResearchpeer-review

Harvard

Fynbo, JPU, Jakobsson, P, Møller, P, Hjorth, J, Thomsen, B, Andersen, MI, Fruchter, AS, Gorosabel, J, Holland, ST, Ledoux, C, Pedersen, H, Rhoads, J, Weidinger, M & Wijers, RAMJ 2003, 'On the Lyα emission from gamma-ray burst host galaxies: Evidence for low metallicities', Astronomy and Astrophysics, vol. 406, no. 3, pp. L63-L66. https://doi.org/10.1051/0004-6361:20030931

APA

Fynbo, J. P. U., Jakobsson, P., Møller, P., Hjorth, J., Thomsen, B., Andersen, M. I., Fruchter, A. S., Gorosabel, J., Holland, S. T., Ledoux, C., Pedersen, H., Rhoads, J., Weidinger, M., & Wijers, R. A. M. J. (2003). On the Lyα emission from gamma-ray burst host galaxies: Evidence for low metallicities. Astronomy and Astrophysics, 406(3), L63-L66. https://doi.org/10.1051/0004-6361:20030931

Vancouver

Fynbo JPU, Jakobsson P, Møller P, Hjorth J, Thomsen B, Andersen MI et al. On the Lyα emission from gamma-ray burst host galaxies: Evidence for low metallicities. Astronomy and Astrophysics. 2003 Aug;406(3):L63-L66. https://doi.org/10.1051/0004-6361:20030931

Author

Fynbo, J. P.U. ; Jakobsson, P. ; Møller, P. ; Hjorth, J. ; Thomsen, B. ; Andersen, M. I. ; Fruchter, A. S. ; Gorosabel, J. ; Holland, S. T. ; Ledoux, C. ; Pedersen, H. ; Rhoads, J. ; Weidinger, M. ; Wijers, R. A.M.J. / On the Lyα emission from gamma-ray burst host galaxies : Evidence for low metallicities. In: Astronomy and Astrophysics. 2003 ; Vol. 406, No. 3. pp. L63-L66.

Bibtex

@article{ba1cdade81e64b0eac5c8b0cb271798f,
title = "On the Lyα emission from gamma-ray burst host galaxies: Evidence for low metallicities",
abstract = "We report on the results of a search for Lyα emission from the host galaxy of the z = 2.140 GRB 011211 and other galaxies in its surrounding field. We detect Lyα emission from the host as well as from six other galaxies in the field. The restframe equivalent width of the Lyα line from the GRB 011211 host is about 21 {\AA}. This is the fifth detection of Lyα emission out of five possible detections from GRB host galaxies, strongly indicating that GRB hosts, at least at high redshifts, are Lyα emitters. This is intriguing as only ∼25% of the Lyman-Break selected galaxies at similar redshifts have Lyα emission lines with restframe equivalent width larger than 20 {\AA}. Possible explanations are i) a preference for GRB progenitors to be metal-poor as expected in the collapsar model, ii) an optical afterglow selection bias against dusty hosts, and iii) a higher fraction of Lyα emitters at the faint end of the luminosity function for high-z galaxies. Of these, the current evidence seems to favour i).",
keywords = "Galaxies: high redshift, Gamma rays: bursts, Technique: photometric",
author = "Fynbo, {J. P.U.} and P. Jakobsson and P. M{\o}ller and J. Hjorth and B. Thomsen and Andersen, {M. I.} and Fruchter, {A. S.} and J. Gorosabel and Holland, {S. T.} and C. Ledoux and H. Pedersen and J. Rhoads and M. Weidinger and Wijers, {R. A.M.J.}",
year = "2003",
month = aug,
doi = "10.1051/0004-6361:20030931",
language = "English",
volume = "406",
pages = "L63--L66",
journal = "Astronomy and Astrophysics Supplement Series",
issn = "0004-6361",
publisher = "E D P Sciences",
number = "3",

}

RIS

TY - JOUR

T1 - On the Lyα emission from gamma-ray burst host galaxies

T2 - Evidence for low metallicities

AU - Fynbo, J. P.U.

AU - Jakobsson, P.

AU - Møller, P.

AU - Hjorth, J.

AU - Thomsen, B.

AU - Andersen, M. I.

AU - Fruchter, A. S.

AU - Gorosabel, J.

AU - Holland, S. T.

AU - Ledoux, C.

AU - Pedersen, H.

AU - Rhoads, J.

AU - Weidinger, M.

AU - Wijers, R. A.M.J.

PY - 2003/8

Y1 - 2003/8

N2 - We report on the results of a search for Lyα emission from the host galaxy of the z = 2.140 GRB 011211 and other galaxies in its surrounding field. We detect Lyα emission from the host as well as from six other galaxies in the field. The restframe equivalent width of the Lyα line from the GRB 011211 host is about 21 Å. This is the fifth detection of Lyα emission out of five possible detections from GRB host galaxies, strongly indicating that GRB hosts, at least at high redshifts, are Lyα emitters. This is intriguing as only ∼25% of the Lyman-Break selected galaxies at similar redshifts have Lyα emission lines with restframe equivalent width larger than 20 Å. Possible explanations are i) a preference for GRB progenitors to be metal-poor as expected in the collapsar model, ii) an optical afterglow selection bias against dusty hosts, and iii) a higher fraction of Lyα emitters at the faint end of the luminosity function for high-z galaxies. Of these, the current evidence seems to favour i).

AB - We report on the results of a search for Lyα emission from the host galaxy of the z = 2.140 GRB 011211 and other galaxies in its surrounding field. We detect Lyα emission from the host as well as from six other galaxies in the field. The restframe equivalent width of the Lyα line from the GRB 011211 host is about 21 Å. This is the fifth detection of Lyα emission out of five possible detections from GRB host galaxies, strongly indicating that GRB hosts, at least at high redshifts, are Lyα emitters. This is intriguing as only ∼25% of the Lyman-Break selected galaxies at similar redshifts have Lyα emission lines with restframe equivalent width larger than 20 Å. Possible explanations are i) a preference for GRB progenitors to be metal-poor as expected in the collapsar model, ii) an optical afterglow selection bias against dusty hosts, and iii) a higher fraction of Lyα emitters at the faint end of the luminosity function for high-z galaxies. Of these, the current evidence seems to favour i).

KW - Galaxies: high redshift

KW - Gamma rays: bursts

KW - Technique: photometric

UR - http://www.scopus.com/inward/record.url?scp=0043199783&partnerID=8YFLogxK

U2 - 10.1051/0004-6361:20030931

DO - 10.1051/0004-6361:20030931

M3 - Letter

AN - SCOPUS:0043199783

VL - 406

SP - L63-L66

JO - Astronomy and Astrophysics Supplement Series

JF - Astronomy and Astrophysics Supplement Series

SN - 0004-6361

IS - 3

ER -

ID: 243912091