GCN CIRCULAR 24139: LIGO/Virgo S190408an: INTEGRAL follow-up observations

Research output: Other contributionNet publication - Internet publication – Annual report year: 2019Research

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  • Author: Lutovinov, Alexander A.

    Russian Academy of Sciences, Russian Federation

  • Author: Molkov, S.

    Russian Academy of Sciences, Russian Federation

  • Author: Savchenko, V.

    University of Geneva, France

  • Author: Ferrigno, C.

    University of Geneva

  • Author: Bozzo, E.

    University of Geneva

  • Author: Courvoisier, T.

    University of Geneva, Switzerland

  • Author: Kuulkers, E.

    European Space Agency - ESA, Netherlands

  • Author: Sanchez, C.

    European Space Astronomy Centre and European Space Agency, Spain

  • Author: Mereghetti, S.

    National Institute for Astrophysics

  • Author: Gotz, D.

    French Alternative Energies and Atomic Energy Commission, France

  • Author: Laurent, P

    French Alternative Energies and Atomic Energy Commission, France

  • Author: Schanne, S.

    Alternative Energies and Atomic Energy Commission, France

  • Author: Cordier, B.

    Alternative Energies and Atomic Energy Commission, France

  • Author: Antier, S.

    Institute of Research into the Fundamental Laws of the Universe, France

  • Author: Coleiro, A.

    Institute of Research into the Fundamental Laws of the Universe, France

  • Author: Goldwurm, A.

    French Alternative Energies and Atomic Energy Commission, France

  • Author: Rodi, James C

    National Institute for Astrophysics, Italy

  • Author: Bazzano, A.

    National Institute for Astrophysics, Italy

  • Author: Natalucci, L.

    National Institute for Astrophysics, Italy

  • Author: Panessa, F.

    National Institute for Astrophysics, Italy

  • Author: Onori, F.

    National Institute for Astrophysics, Italy

  • Author: Ubertini, P.

    National Institute for Astrophysics

  • Author: Chenevez, J.

    Astrophysics and Atmospheric Physics, National Space Institute, Technical University of Denmark, Elektrovej, 2800, Kgs. Lyngby, Denmark

  • Author: Brandt, S.

    Astrophysics and Atmospheric Physics, National Space Institute, Technical University of Denmark, Elektrovej, 2800, Kgs. Lyngby, Denmark

  • Author: Diehl, R.

    Max Planck Institute for Extraterrestrial Physics, Germany

  • Author: von Kienlin, A.

    Max Planck Institute for Extraterrestrial Physics, Germany

  • Author: Domingo, A.

    CSIC, Spain

  • Author: Hesse, M. M.

    CSIC, Spain

  • Author: Hanlon, L.

    University College Dublin, Ireland

  • Author: Martin-Carrillo, A.

    University College Dublin, Ireland

  • Author: Doyle , M.

    University College Dublin, Ireland

  • Author: Sunyaev, R.

    Russian Academy of Sciences

  • Author: Roques, J.P.

    IRAP, France

  • Author: Jourdain, E.

    IRAP, France

  • Author: von Ballmoos, P.

    IRAP, France

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The INTEGRAL observatory performed follow-up observations of the LIGO/Virgo compact binary merger candidate S190408an (GCN #24069) in the form of the fast TOO operational test.

The observations were carried out from 2019-04-10 11:13:07 to 2019-04-10 17:10:47 in the staring and hexagonal dithering modes with a total observing time of approximately 18 ks. They were centred on the coordinates RA=350.2, Dec=-56.0 and covered ~42% of the LIGO/Virgo localization probability with the highest sensitivity.

We do not detect any new sources in the complete IBIS/ISGRI (25-60 keV) mosaicked image with the best sensitivity of 16.5 mCrab (1.6e-10 erg/cm2/s, 3-sigma upper level) in this energy range.
Original languageEnglish
Publication date21 Apr 2019
Number of pages1
Publication statusPublished - 21 Apr 2019

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