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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Bibliographic Details
Main Author: Masetti, N.
Format: Report
Language:unknown
Published: arXiv 1999
Subjects:
Astrophysics astro-ph
FOS Physical sciences
Antarc*
Antarctica
Online Access:https://dx.doi.org/10.48550/arxiv.astro-ph/9912423
https://arxiv.org/abs/astro-ph/9912423
id ftdatacite:10.48550/arxiv.astro-ph/9912423
record_format openpolar
spelling 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)
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Astrophysics astro-ph
FOS Physical sciences
spellingShingle 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

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