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 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 10 N. Di Lalla 11 M. Di Mauro 12 L. Di Venere A. Domínguez P. S. Drell R. Dubois 13 D. Dumora 14 C. Favuzzi S. J. Fegan E. C. Ferrara 15 A. Franckowiak Y. Fukazawa S. Funk 16 P. Fusco 17 F. Gargano D. Gasparrini N. Gehrels N. Giglietto M. Giomi P. Giommi F. Giordano M. Giroletti 18 T. Glanzman G. Godfrey G. A. Gomez-Vargas J. Granot D. Green I. A. Grenier 19 M.-H. Grondin J. E. Grove Lucas Guillemot 20, 21 S. Guiriec D. Hadasch A. K. Harding 22 E. Hays J. W. Hewitt A. B. Hill D. Horan 23 T. Jogler G. Jóhannesson T. Kamae S. Kensei D. Kocevski M. Kuss 24 G. La Mura 25 S. Larsson 26 L. Latronico M. Lemoine-Goumard J. Li 27 L. Li 28 F. Longo F. Loparco 29 M. N. Lovellette P. Lubrano G. M. Madejski J. Magill S. Maldera A. Manfreda M. Marelli M. Mayer 30 M. N. Mazziotta J. E. Mcenery M. Meyer P. F. Michelson 31 N. Mirabal T. Mizuno A. A. Moiseev M. E. Monzani E. Moretti A. Morselli I. V. Moskalenko S. Murgia M. Negro 32 E. Nuss 29 T. Ohsugi N. Omodei M. Orienti E. Orlando J. F. Ormes D. Paneque J. S. Perkins 33 M. Pesce-Rollins F. Piron 29 G. Pivato T. A. Porter 34 J. L. Racusin S. Rainò R. Rando S. Razzaque A. Reimer O. Reimer T. Reposeur 35 S. Ritz 36, 37 L. S. Rochester R. W. Romani P. M. Saz Parkinson 4 C. Sgrò 38 D. Simone 39 E. J. Siskind D. A. Smith 40 F. Spada G. Spandre P. Spinelli 41 D. J. Suson H. Tajima 42 J. G. Thayer J. B. Thayer D. J. Thompson 43 L. Tibaldo D. F. Torres E. Troja Y. Uchiyama 44 T. M. Venters G. Vianello K. S. Wood 45 M. Wood G. Zaharijas S. Zhu 46 S. Zimmer 47
14 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
Last modification on : Wednesday, August 7, 2019 - 12:19:20 PM

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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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