Sánchez-Ramírez, R;
de Ugarte Postigo, A;
Gorosabel, J;
Hankcock, P;
Murphy, T;
Lundgren, A;
Kann, DA;
... Greiner, J; + view all
(2013)
GRB110715A: Multifrequency study of the first gamma-ray burst observed with ALMA.
In: Guirado, JC and Lara, LM and Quilis, V and Gorgas, J, (eds.)
Highlights of Spanish Astrophysics VII: Proceedings of the X Scientific Meeting of the Spanish Astronomical Society (SEA).
(pp. pp. 399-404).
Spanish Society of Astronomy (SEA)
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Abstract
GRB 110715A had a bright afterglow that was obscured by a high Galactic extinction. We discovered the submillimetre counterpart with APEX and followed it in radio with ATCA for over 2 months. Additional submillimetre observations were performed with ALMA as a test of the ToO procedures during commissioning. UV, optical and NIR observations were performed with UVOT/Swift and GROND at the 2.2 m telescope in La Silla and X-ray data was obtained by XRT/Swift. The dataset is complemented with spectroscopic data from the X-shooter spectrograph at the VLT. From a broadband model we derive a peculiar density profile in the environment of the progenitor, with a discontinuity that produces a break in the light curve at ∼ 1 day after the burst onset. The absorption features present in the intermediate resolution optical/nIR spectra reveal a redshift of 0.8224 and a host galaxy environment with low ionisation and no velocity components beyond 30 km s−1 . These preliminary results will be published elsewhere.
| Type: | Proceedings paper |
|---|---|
| Title: | GRB110715A: Multifrequency study of the first gamma-ray burst observed with ALMA |
| Event: | X Scientific Meeting of the Spanish Astronomical Society (SEA), 9-13 July 2012, Valencia, Spain |
| ISBN-13: | 9788469576144 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | http://www.sea-astronomia.es/drupal/content/procee... |
| Language: | English |
| Additional information: | This is the published version of record. For information on re-use, please refer to the publisher's terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1420672 |
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