Fermi Science Support Center

Background on the Fermi Guest Investigator Program

Titles and abstracts of previously Fermi Guest Investigator Programs approved programs are public information and can be obtained here: Fermi Cycles 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10. Additional information summarizing the history of the GI program is also available.

The Fermi Guest Investigator (GI) program solicits proposals for basic research relevant to the Fermi mission. The primary goal of this mission is to perform 20 MeV to >300 GeV gamma-ray measurements over the entire celestial sphere, with sensitivity a factor of 30 or more greater than that obtained by earlier space missions. A secondary goal includes the study of transient gamma-ray sources with energies extending from 8 keV up to 300 GeV.

The Fermi GI program is intended to encourage scientific participation by providing funding to carry out investigations using Fermi data, to conduct correlative observations at other wavelengths, to develop data analysis techniques applicable to the Fermi data, and to carry out theoretical investigations in support of Fermi observations. Opportunities to propose will be announced annually in the NASA ROSES NRA.

Investigators may apply for radio or optical observing time through joint programs with the National Radio Astronomy Observatory (NRAO), National Optical Astronomy Observatory (NOAO), the Arecibo Observatory, or with Suzaku. Proposers may also request the use of high-end computing resources to support their Fermi-related research.

Investigators may propose Fermi pointed observations. While pointed observations can significantly increase the exposure time duty cycle for a given position on the sky, there are many caveats. It is highly recommended that interested proposers read the online documentation regarding this subject.

The Fermi GI program is open to all investigators, but NASA funding is available only to investigators at U.S. institutions.