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GRB 110715A: Multiwavelength study of the first gamma-ray burst observed with ALMA

Published online by Cambridge University Press:  22 July 2013

R. Sánchez-Ramírez ,
P. Hancock ,
T. Murphy ,
A. de Ugarte Postigo ,
J. Gorosabel ,
D.A. Kann ,
C.C. Thöne ,
A. Lundgren ,
A. Kamble  and
S.R. Oates
...Show all authors
R. Sánchez-Ramírez
Affiliation:
Instituto de Astrofísica de Andalucía, IAA-CSIC, Glorieta de la Astronomía s/n, 18008, Spain
P. Hancock
Affiliation:
Sydney Institute for Astronomy, School of Physics, The University of Sydney, NSW 2006, Australia
T. Murphy
Affiliation:
Sydney Institute for Astronomy, School of Physics, The University of Sydney, NSW 2006, Australia
A. de Ugarte Postigo
Affiliation:
Instituto de Astrofísica de Andalucía, IAA-CSIC, Glorieta de la Astronomía s/n, 18008, Spain Dark Cosmology Centre, Niels Bohr Institute, Juliane Maries Vej 30, 2100 Copenhagen Ø, Danemark
J. Gorosabel
Affiliation:
Instituto de Astrofísica de Andalucía, IAA-CSIC, Glorieta de la Astronomía s/n, 18008, Spain Unidad Asociada Grupo Ciencia Planetarias UPV/EHU-IAA/CSIC, Departamento de Física Aplicada I, E.T.S. Ingeniería, Universidad del País Vasco UPV/EHU, Alameda de Urquijo s/n, 48013 Bilbao, Spain Ikerbasque, Basque Foundation for Science, Alameda de Urquijo 36-5, 48008 Bilbao, Spain
D.A. Kann
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany MPI für extraterrestrische Physik, 85740 Garching, Germany
C.C. Thöne
Affiliation:
Instituto de Astrofísica de Andalucía, IAA-CSIC, Glorieta de la Astronomía s/n, 18008, Spain
A. Lundgren
Affiliation:
European Southern Observatory, Vitacura Casilla 19001, Santiago de Chile 19, Chile Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile
A. Kamble
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA
S.R. Oates
Affiliation:
Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK
J.P.U. Fynbo
Affiliation:
Dark Cosmology Centre, Niels Bohr Institute, Juliane Maries Vej 30, 2100 Copenhagen Ø, Danemark
I. de Gregorio Monsalvo
Affiliation:
European Southern Observatory, Vitacura Casilla 19001, Santiago de Chile 19, Chile Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile
D. Garcia-Appadoo
Affiliation:
European Southern Observatory, Vitacura Casilla 19001, Santiago de Chile 19, Chile Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile
S. Martín
Affiliation:
European Southern Observatory, Vitacura Casilla 19001, Santiago de Chile 19, Chile
N.P.M. Kuin
Affiliation:
Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK
J. Greiner
Affiliation:
MPI für extraterrestrische Physik, 85740 Garching, Germany
A.J. Castro-Tirado
Affiliation:
Instituto de Astrofísica de Andalucía, IAA-CSIC, Glorieta de la Astronomía s/n, 18008, Spain
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Abstract

GRB 110715A had a bright afterglow that was obscured in the optical by a high Galactic extinction. We discovered the submillimeter counterpart with APEX and followed it in radio with ATCA for over 2 months. Additional submm observations were performed with ALMA as a test of the ToO procedures during commissioning, becoming the first GRB afterglow to be detected by the observatory. UV, optical and NIR observations were performed with Swift/UVOT and 2.2 m/GROND in La Silla and X-ray data were obtained by Swift/XRT. The dataset is complemented with spectroscopic data from the VLT/X-shooter spectrograph. The absorption features present in the intermediate resolution optical/nIR spectra reveal a redshift of 0.8224 and a host galaxy environment with low ionization. We fit in the host galaxy absorption features two velocity components separated by 30 km/s, implying a host galaxy with low dynamical activity.

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. 267 - 269
Copyright
© EAS, EDP Sciences 2013

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References

de Ugarte Postigo, A., Lundgren, A., Mac-Auliffe, F., et al., 2011, GCN 12168
de UgartePostigo, A., Lundgren, A., Martín, S., et al., 2012, A&A, 538, A44
de Ugarte Postigo, A., Fynbo, J.P.U., Thoene, C.C., et al., 2012, A&A, 548, A11
Evans, P.A., Beardmore, A.P., Page, K.L., et al., 2009, MNRAS, 397, 1177 CrossRef
Hancock, P.J., Murphy, T., & Schmidt, B.P., 2011, GCN 12171
Sonbas, E., Barthelmy, S.D., Baumgartner, W.H., et al., 2011, GCN 12158