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 R. Buehler T. H. Burnett S. Buson G. A. Caliandro R. A. Cameron R. Caputo M. Caragiulo P. A. Caraveo J. M. Casandjian 7 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 8 N. Di Lalla 9 M. Di Mauro 10 L. Di Venere A. Domínguez P. S. Drell R. Dubois 11 D. Dumora 12 C. Favuzzi S. J. Fegan E. C. Ferrara 13 A. Franckowiak Y. Fukazawa S. Funk 14 P. Fusco 15 F. Gargano D. Gasparrini N. Gehrels N. Giglietto M. Giomi P. Giommi F. Giordano M. Giroletti 16 T. Glanzman G. Godfrey G. A. Gomez-Vargas J. Granot D. Green I. A. Grenier 17 M.-H. Grondin J. E. Grove Lucas Guillemot 18, 19 S. Guiriec D. Hadasch A. K. Harding 20 E. Hays J. W. Hewitt A. B. Hill D. Horan 21 T. Jogler G. Jóhannesson T. Kamae S. Kensei D. Kocevski M. Kuss 22 G. La Mura 23 S. Larsson 24 L. Latronico M. Lemoine-Goumard J. Li 25 L. Li 26 F. Longo F. Loparco 27 M. N. Lovellette P. Lubrano G. M. Madejski J. Magill S. Maldera A. Manfreda M. Marelli M. Mayer 28 M. N. Mazziotta J. E. Mcenery M. Meyer P. F. Michelson 29 N. Mirabal T. Mizuno A. A. Moiseev M. E. Monzani E. Moretti A. Morselli I. V. Moskalenko S. Murgia M. Negro 30 E. Nuss 27 T. Ohsugi N. Omodei M. Orienti E. Orlando J. F. Ormes D. Paneque J. S. Perkins 31 M. Pesce-Rollins F. Piron 27 G. Pivato T. A. Porter 32 J. L. Racusin S. Rainò R. Rando S. Razzaque A. Reimer O. Reimer T. Reposeur 33 S. Ritz 34, 35 L. S. Rochester R. W. Romani P. M. Saz Parkinson 4 C. Sgrò 36 D. Simone 37 E. J. Siskind D. A. Smith 38 F. Spada G. Spandre P. Spinelli 39 D. J. Suson H. Tajima 40 J. G. Thayer J. B. Thayer D. J. Thompson 41 L. Tibaldo D. F. Torres E. Troja Y. Uchiyama 42 T. M. Venters G. Vianello K. S. Wood 43 M. Wood G. Zaharijas S. Zhu 44 S. Zimmer 45
12 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 : Saturday, December 21, 2019 - 1:03:31 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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