%0 Journal Article
%4 dpi.inpe.br/plutao/2012/11.28.19.11.17
%2 dpi.inpe.br/plutao/2012/11.28.19.11.18
%@doi 10.1088/0067-0049/203/2/28
%@issn 0067-0049
%@issn 1538-4365
%F lattes: 2701172317925881 15 EvansFGHOSBHGKSZC:2012:FOOBCA
%T Swift follow-up observations of candidate gravitational-wave transient events
%D 2012
%8 Dec.
%A Evans, P. A.,
%A Fridriksson, J. K.,
%A Gehrels, N.,
%A Homan, J.,
%A Osborne, J. P.,
%A Siegel, M.,
%A Beardmore, A.,
%A Handbauer, P.,
%A Gelbord, J.,
%A Kennea, J. A.,
%A Smith, M.,
%A Zhu, Q.,
%A The LIGO Scientific Collaboration,
%A Virgo Collaboration,
%A Costa, César Augusto,
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%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
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%@electronicmailaddress cesar.costa@das.inpe.br
%B Astrophysical Journal Supplement Series
%V 203
%N 2
%P 28 (14pp)
%K gravitational waves, ultraviolet, X-Rays.
%X We present the first multi-wavelength follow-up observations of two candidate gravitational-wave (GW) transient events recorded by LIGO and Virgo in their 20092010 science run. The events were selected with low latency by the network of GW detectors (within less than 10 minutes) and their candidate sky locations were observed by the Swift observatory (within 12 hr). Image transient detection was used to analyze the collected electromagnetic data, which were found to be consistent with background. Off-line analysis of the GWdata alone has also established that the selected GW events show no evidence of an astrophysical origin; one of them is consistent with background and the other one was a test, part of a blind injection challenge.With this work we demonstrate the feasibility of rapid follow-ups of GW transients and establish the sensitivity improvement joint electromagnetic and GW observations could bring. This is a first step toward an electromagnetic follow-up program in the regime of routine detections with the advanced GW instruments expected within this decade. In that regime, multi-wavelength observations will play a significant role in completing the astrophysical identification of GW sources. We present the methods and results from this first combined analysis and discuss its implications in terms of sensitivity for the present and future instruments.
%@language en
%U http://iopscience.iop.org/0067-0049/203/2/28/
%O Setores de Atividade: Pesquisa e desenvolvimento científico.