The Fermi Gamma-ray Space Telescope was launched from the Kennedy Space Center on June 11, 2008. The verification phase was completed on August 11, 2008, and Fermi is now in nominal science operations. Since then, the Fermi-LAT collaboration has published several hundred papers on the high energy phenomenology of the transient and steady sky.
Fermi has two gamma-ray instruments: the Large Area Telescope (LAT) and the Gamma-ray Burst Monitor (GBM). The LAT is a wide-field gamma-ray telescope (covering from ~30 MeV to ~300 GeV). From the start of regular observations, LAT scans the sky, providing all-sky coverage every two orbits, and accumulating integration time in all directions. LAT observations may also be interrupted by target of opportunity observations, follow up of GRB, or pointed observations. The GBM is an all-sky monitor (10 keV - 25 MeV) that detects transient events such as occultations and gamma-ray bursts.
The PI is P. Michelson (SLAC & Stanford), earlier leading a constructing consortium of 5 nations and currently a scientific consortium of 13 (including Spain). Our institute is the only institute in Spain with full members in the Fermi-LAT collaboration (since 2007, before launch). We are devoted to the study of the high-energy Galactic sky, focusing on binaries and the pulsar/pulsar-wind nebula/supernova remnant complex.
As members of the collaboration we have participated in the day-to-day running of the experiment, and conducted a variety of tasks such as being Internal referees for papers, participating in Committees / meetings / thinkshops / collaboration meetings / etc. and helped in preparations for several NASA Senior Science Reviews
We have also had the following technical involvement
- Definition of mock population for data challenges
- Development of algorithms for source class identification
- Acted as Flare advocates & daily running checks (similar to an observational shift, a couple per year)
- Participated on the On-orbit calibration & development of responses
- Validation of the time-difference analysis technique for radio-quiet pulsars
Highlights of our the Institute's contribution to the mission include leading the collaboration work when publishing Fermi's first paper on SNR observations, or the first ever detection of orbital GeV variability, or the first search for magnetar emission in gamma-rays, or the first detection of starburst galaxies, among many others.
A Search for Transitions between States in Redbacks and Black Widows Using Seven Years of Fermi-LAT Observations
Torres, Diego F.; Ji, Long; Li, Jian; Papitto, Alessandro; Rea, Nanda; de O–a Wilhelmi, Emma; Zhang, Shu
The Astrophysical Journal, Volume 836, Issue 1, article id. 68, 10 pp. (2017).
GeV Detection of HESS J0632+057
Li, Jian; Torres, Diego F.; Cheng, K.-S.; de O–a Wilhelmi, Emma; Kretschmar, Peter; Hou, Xian; Takata, Jumpei
The Astrophysical Journal, Volume 846, Issue 2, article id. 169, 7 pp. (2017).
Fermi Observations of the LIGO Event GW170104
The Fermi-LAT collaboration
The Astrophysical Journal Letters, Volume 846, Issue 1, article id. L5, 6 pp. (2017)
3FHL: The Third Catalog of Hard Fermi-LAT Sources
The Fermi-LAT collaboration
The Astrophysical Journal Supplement Series, Volume 232, Issue 2, article id. 18, 23 pp. (2017).
Senior Institute members involved
D. F. Torres
, N. Rea, E. de Oña