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INTEGRAL U.S. Guest Observer Facility

The INTErnational Gamma-Ray Astrophysics Laboratory

INTEGRAL, was launched in October 2002 aboard a Russian Proton rocket,  and is providing a new insight into the most violent and exotic objects of the Universe,  such as neutron stars, active galactic nuclei and supernovae. INTEGRAL is also helping us to understand processes such as the formation of new chemical elements and the mysterious gamma-ray bursts, the most energetic phenomena in the Universe. Environments of extreme temperature and density, near the event-horizons of black holes, are a major topic of study with INTEGRAL.

These studies are possible thanks to INTEGRAL's combination of fine spectroscopy and imaging of gamma-ray emissions in the energy range of 15 keV to 10 MeV (using the SPI and IBIS instruments) and concurrent monitoring in the X-ray band (4-35 keV) using JEM-X, and in the optical (500-600 nm) band, using the OMC.

A project of the European Space Agency INTEGRAL, serves an international Guest Observer community. Participation by U.S. astronomers was supported by a Guest Observer Facility (GOF) at the NASA/Goddard Space Flight Center (GSFC) from the mission start until October 2010. Since then, the mirroring of the European INTEGRAL Public Data Archive into the HEASARC has been continued by the HEASARC.

Picture of the Month

Integral Picture of the Month

INTEGRAL News & Science Results

Transient IGR J17591-2342 is a new accreting millisecond X-ray pulsar
(September 14, 2018)

Donor star breathes life into zombie companion
(March 6, 2018)

Happy birthday - INTEGRAL celebrates 15 successful years in orbit
(October 17, 2017)

INTEGRAL sees blast travelling with gravitational waves
(October 16, 2017)

Integral in orbit

Latest INTEGRAL News

  • 12th INTEGRAL Workshop and 1st AHEAD Gamma-Ray Workshop (19 Sep 2018)
    The 12th INTEGRAL Conference will be organized together with the 1st AHEAD Gamma-Ray Workshop on 11-15 February 2019: "INTEGRAL looks AHEAD to Multi-Messenger Astrophysics". It will be hosted by the Campus Biotech, in Geneva (Switzerland). This conference will discuss recent developments in high-energy astronomy, with particular emphasis on its role in multi-messenger astronomy. Further information including deadlines can be found at the above link.
  • INTEGRAL AO-16 General Program Approved (27 Jun 2018)
    The INTEGRAL AO-16 General Program, as recommended by the Time Allocation Committee (TAC) and approved by ESA's Director of Science (Prof. Gunther Hasinger), has been released and the observers have been informed.
  • 16th INTEGRAL Announcement of Opportunity (06 Mar 2018)
    ESA invites you to submit proposals to the International Gamma-ray Astrophysics Laboratory (INTEGRAL) 16th "Announcement of Opportunity" (AO-16) call for proposals, for observations to be performed during 2019. As previously, ESA also provides the opportunity to propose for coordinated observations with XMM-Newton, NuSTAR, and/or Swift with a total of 300 ks, 100 ks, and 150 ks, respectively, of their available time. Documentation, proposal submission and support software for this Announcement are being made available via the ESA INTEGRAL website. The deadline for proposal submission is Friday, April 13, 2018, 14:00 CEST.
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    INTEGRAL Picture of the Month archive
    Latest INTEGRAL Newsletter
    Latest ISDC Newsletter
    INTEGRAL News & Science Results
    INTEGRAL Publications (ESA list)

    INTEGRAL Public Data Archive Status
  • The HEASARC mirror to the INTEGRAL Public Data Archive now contains data through the August 25, 2018 public data release (revolution 1843). It also contains all data from recent observations for which the PI has allowed the data to be made public earlier than the 1 year proprietary period.

  • The next scheduled public data release is September 25, 2018.

    ISDC Public Data Release Schedule.

  • This page is intended for members of the scientific community. For members of the general public, or those interested in general astronomy/astrophysics information please go to our Education and Public Outreach site.