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Millimetre Observations of Gamma-ray Bursts atIRAM

Published online by Cambridge University Press:  22 July 2013

A.J. Castro-Tirado ,
M. Bremer ,
J. M. Winters ,
J. C. Tello ,
S. B. Pandey ,
A. de Ugarte Postigo ,
J. Gorosabel ,
S. Guziy ,
M. Jelinek  and
R. Sánchez-Ramírez
...Show all authors
A.J. Castro-Tirado
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain
M. Bremer
Affiliation:
Institute de Radioastronomie Milimetrique (IRAM), Saint Martin d'Hères, France
J. M. Winters
Affiliation:
Institute de Radioastronomie Milimetrique (IRAM), Saint Martin d'Hères, France
J. C. Tello
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain
S. B. Pandey
Affiliation:
Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, India
A. de Ugarte Postigo
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
J. Gorosabel
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain Unidad Asociada CSIC-UPV/EHU, Departamento de Física Aplicada I, Escuela T. Superior de Ingeniería, Bilbao, Spain Ikerbasque, Basque Foundation for Science, Alameda de Urquijo 36-5, 48008 Bilbao, Spain
S. Guziy
Affiliation:
Nikolaev Astronomical Observatory, University of Nikolaev, Ukraine
M. Jelinek
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain
R. Sánchez-Ramírez
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain
D. Pérez-Ramírez
Affiliation:
Universidad de Jaén, Spain
J.M. Castro Cerón
Affiliation:
ESAC, Robledo de Chavela, Madrid, Spain
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Abstract

Since 1997, and following our detection of the first mm afterglow, we have followed-up 70GRBs, mainly with the IRAMś Plateau de Bure Interferometer, what can be considered as theIRAM Legacy GRB Sample. 66 events were observed at 3 mm, with 19 of them being detected(with another 3 having marginal detections). 32 GRBs were followed up at 1 mm, with 6 ofthem being detected. Redshifts for the GRB afterglows lie in the range z = 0.03–8.3, withmeasured flux densities (at 3 mm) varying between 0.25 and 60 mJy (but usually <1.5mJy) with first observations taking place around 1–2 days after the GRB. Forward shockemission expleains the observations with the exception of one particular case (GRB 090423at z = 8.2) for which reverse shock emission is required.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 61: Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe , 2013 , pp. 279 - 281
Copyright
© EAS, EDP Sciences 2013

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References

Bremer, M., Krichbaum, T.P., Galama, T.J., et al., 1998, A&A 332, L13
Castro-Tirado, A.J., Bremer, M., Winters, J.-M., et al., 2013, in press
Guilloteau, S., Delannoy, J., Downes, D., et al., 1992, A&A 262, 624
de Ugarte Postigo, A., Lundgren, A., Martín, S., et al., 2012, A&A, 538, A44