Near-infrared detection and optical follow-up of the GRB990705 afterglow
Optical and near-infrared observations of the GRB990705 error box were carried out with ESO telescopes at La Silla and Paranal in Chile and with the NOAO SPIREX 0.6-meter telescope in Antarctica. We detected the counterpart of this GRB in the near-infrared H band and optical V band. The power-law de...
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ftdatacite:10.48550/arxiv.astro-ph/9912423 2023-05-15T14:04:07+02:00 Near-infrared detection and optical follow-up of the GRB990705 afterglow Masetti, N. 1999 https://dx.doi.org/10.48550/arxiv.astro-ph/9912423 https://arxiv.org/abs/astro-ph/9912423 unknown arXiv Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004 http://arxiv.org/licenses/assumed-1991-2003/ Astrophysics astro-ph FOS Physical sciences Preprint Article article CreativeWork 1999 ftdatacite https://doi.org/10.48550/arxiv.astro-ph/9912423 2022-04-01T17:20:57Z Optical and near-infrared observations of the GRB990705 error box were carried out with ESO telescopes at La Silla and Paranal in Chile and with the NOAO SPIREX 0.6-meter telescope in Antarctica. We detected the counterpart of this GRB in the near-infrared H band and optical V band. The power-law decline of the near-infrared lightcurve is rather steep with a decay index alpha ~ 1.7 in the first hours, and a possible steepening after one day. Broadband spectral analysis of the optical/near-infrared afterglow suggests that this GRB took place in a high density environment. A deep optical image obtained at Antu (VLT-UT1) about 5 days after the GRB trigger shows at the position of the transient an extended object which might be the host galaxy of GRB990705. : 7 pages, 3 figures, 1 table, accepted for publication on Astronomy & Astrophysics, Main Journal Report Antarc* Antarctica DataCite Metadata Store (German National Library of Science and Technology) |
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Astrophysics astro-ph FOS Physical sciences |
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Astrophysics astro-ph FOS Physical sciences Masetti, N. Near-infrared detection and optical follow-up of the GRB990705 afterglow |
topic_facet |
Astrophysics astro-ph FOS Physical sciences |
description |
Optical and near-infrared observations of the GRB990705 error box were carried out with ESO telescopes at La Silla and Paranal in Chile and with the NOAO SPIREX 0.6-meter telescope in Antarctica. We detected the counterpart of this GRB in the near-infrared H band and optical V band. The power-law decline of the near-infrared lightcurve is rather steep with a decay index alpha ~ 1.7 in the first hours, and a possible steepening after one day. Broadband spectral analysis of the optical/near-infrared afterglow suggests that this GRB took place in a high density environment. A deep optical image obtained at Antu (VLT-UT1) about 5 days after the GRB trigger shows at the position of the transient an extended object which might be the host galaxy of GRB990705. : 7 pages, 3 figures, 1 table, accepted for publication on Astronomy & Astrophysics, Main Journal |
format |
Report |
author |
Masetti, N. |
author_facet |
Masetti, N. |
author_sort |
Masetti, N. |
title |
Near-infrared detection and optical follow-up of the GRB990705 afterglow |
title_short |
Near-infrared detection and optical follow-up of the GRB990705 afterglow |
title_full |
Near-infrared detection and optical follow-up of the GRB990705 afterglow |
title_fullStr |
Near-infrared detection and optical follow-up of the GRB990705 afterglow |
title_full_unstemmed |
Near-infrared detection and optical follow-up of the GRB990705 afterglow |
title_sort |
near-infrared detection and optical follow-up of the grb990705 afterglow |
publisher |
arXiv |
publishDate |
1999 |
url |
https://dx.doi.org/10.48550/arxiv.astro-ph/9912423 https://arxiv.org/abs/astro-ph/9912423 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_rights |
Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004 http://arxiv.org/licenses/assumed-1991-2003/ |
op_doi |
https://doi.org/10.48550/arxiv.astro-ph/9912423 |
_version_ |
1766275124514783232 |