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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ftcern:oai:cds.cern.ch:412561 2023-05-15T13:40:05+02:00 Near-infrared detection and optical follow-up of the GRB990705 afterglow Masetti, N 2000 http://cds.cern.ch/record/412561 eng eng http://cds.cern.ch/record/412561 astro-ph/9912423 oai:cds.cern.ch:412561 Astrophysics and Astronomy 2000 ftcern 2018-07-28T04:19:24Z 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. Other/Unknown Material Antarc* Antarctica CERN Document Server (CDS) |
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Open Polar |
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CERN Document Server (CDS) |
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ftcern |
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English |
topic |
Astrophysics and Astronomy |
spellingShingle |
Astrophysics and Astronomy Masetti, N Near-infrared detection and optical follow-up of the GRB990705 afterglow |
topic_facet |
Astrophysics and Astronomy |
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. |
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 |
publishDate |
2000 |
url |
http://cds.cern.ch/record/412561 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
http://cds.cern.ch/record/412561 astro-ph/9912423 oai:cds.cern.ch:412561 |
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1766127720353234944 |