FERMI-LAT observations of the ligo event GW150914

Markus Ackermann Marco Ajello 1 A. Albert 2 B. Anderson 3 M. Arimoto William B. Atwood 4 Magnus Axelsson Luca Baldini Jean Ballet 5 Guido Barbiellini Matthew G. Baring D. Bastieri J. Becerra Gonzalez R. Bellazzini E. Bissaldi R. D. Blandford E. D. Bloom R. Bonino E. Bottacini T. J. Brandt J. Bregeon R. J. Britto 6 Pascal Bruel 7, 8 R. Buehler T. H. Burnett S. Buson G. A. Caliandro R. A. Cameron R. Caputo M. Caragiulo P. A. Caraveo J. M. Casandjian 9 E. Cavazzuti E. Charles 10 A. Chekhtman J. Chiang G. Chiaro S. Ciprini J. Cohen-Tanugi L. R. Cominsky B. Condon F. Costanza A. Cuoco S. Cutini F. D’ammando F. De Palma R. Desiante S. W. Digel 11 N. Di Lalla 12 M. Di Mauro 13 L. Di Venere A. Domínguez P. S. Drell R. Dubois 14 D. Dumora 15 C. Favuzzi S. J. Fegan E. C. Ferrara 16 A. Franckowiak Y. Fukazawa S. Funk 17 P. Fusco 18 F. Gargano D. Gasparrini N. Gehrels N. Giglietto M. Giomi P. Giommi F. Giordano M. Giroletti 19 T. Glanzman G. Godfrey G. A. Gomez-Vargas J. Granot D. Green I. A. Grenier 20 M.-H. Grondin J. E. Grove Lucas Guillemot 21, 22 S. Guiriec D. Hadasch A. K. Harding 23 E. Hays J. W. Hewitt A. B. Hill D. Horan 24 T. Jogler G. Jóhannesson T. Kamae S. Kensei D. Kocevski M. Kuss 25 G. La Mura 26 S. Larsson 27 L. Latronico M. Lemoine-Goumard J. Li 28 L. Li 29 F. Longo F. Loparco 30 M. N. Lovellette P. Lubrano G. M. Madejski J. Magill S. Maldera A. Manfreda M. Marelli M. Mayer 31 M. N. Mazziotta J. E. Mcenery M. Meyer P. F. Michelson 32 N. Mirabal T. Mizuno A. A. Moiseev M. E. Monzani E. Moretti A. Morselli I. V. Moskalenko S. Murgia M. Negro 33 E. Nuss 30 T. Ohsugi N. Omodei M. Orienti E. Orlando J. F. Ormes D. Paneque J. S. Perkins 34 M. Pesce-Rollins F. Piron 30 G. Pivato T. A. Porter 35 J. L. Racusin S. Rainò R. Rando S. Razzaque A. Reimer O. Reimer T. Reposeur 36 S. Ritz 37, 38 L. S. Rochester R. W. Romani P. M. Saz Parkinson 4 C. Sgrò 39 D. Simone 40 E. J. Siskind D. A. Smith 41 F. Spada G. Spandre P. Spinelli 42 D. J. Suson H. Tajima 43 J. G. Thayer J. B. Thayer D. J. Thompson 44 L. Tibaldo D. F. Torres E. Troja Y. Uchiyama 45 T. M. Venters G. Vianello K. S. Wood 46 M. Wood G. Zaharijas S. Zhu 47 S. Zimmer 48
15 GLAST
CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
Abstract : The Fermi Large Area Telescope (LAT) has an instantaneous field of view (FoV) covering $\sim 1/5$ of the sky and it completes a survey of the entire sky in high-energy gamma-rays every 3 hr. It enables searches for transient phenomena over timescales from milliseconds to years. Among these phenomena could be electromagnetic counterparts to gravitational wave (GW) sources. In this paper, we present a detailed study of the LAT observations relevant to Laser Interferometer Gravitational-wave Observatory (LIGO) event GW150914, which is the first direct detection of gravitational waves and has been interpreted as being due to the coalescence of two stellar-mass black holes. The localization region for GW150914 was outside the LAT FoV at the time of the GW signal. However, as part of routine survey observations, the LAT observed the entire LIGO localization region within ~70 minutes of the trigger and thus enabled a comprehensive search for a γ-ray counterpart to GW150914. The study of the LAT data presented here did not find any potential counterparts to GW150914, but it did provide limits on the presence of a transient counterpart above 100 MeV on timescales of hours to days over the entire GW150914 localization region.
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Submitted on : Thursday, September 8, 2016 - 11:20:19 AM
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Markus Ackermann, Marco Ajello, A. Albert, B. Anderson, M. Arimoto, et al.. FERMI-LAT observations of the ligo event GW150914. The Astrophysical journal letters, Bristol : IOP Publishing, 2016, 823 (1), 13 p. ⟨10.3847/2041-8205/823/1/L2⟩. ⟨insu-01362128⟩

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