The Fermi-LAT Lightcurve Repository
Abstract
The Fermi Large Area Telescope (LAT) lightcurve repository (LCR) is a publicly available, continually updated library of gamma-ray lightcurves of variable Fermi-LAT sources generated over multiple timescales. The Fermi-LAT LCR aims to provide publication-quality lightcurves binned on timescales of 3, 7, and 30 days for 1525 sources deemed variable in the source catalog of the first 10 yr of Fermi-LAT observations. The repository consists of lightcurves generated through full likelihood analyses that model the sources and the surrounding region, providing fluxes and photon indices for each time bin. The LCR is intended as a resource for the time-domain and multimessenger communities by allowing users to search LAT data quickly to identify correlated variability and flaring emission episodes from gamma-ray sources. We describe the sample selection and analysis employed by the LCR and provide an overview of the associated data access portal. *For any questions about this work, contact in order: M. Negro, D. Kocevski, J. Valverde, A. Brill, S. Garrappa.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- April 2023
- DOI:
- 10.3847/1538-4365/acbb6a
- arXiv:
- arXiv:2301.01607
- Bibcode:
- 2023ApJS..265...31A
- Keywords:
-
- Gamma-ray astronomy;
- Active galactic nuclei;
- Light curves;
- 628;
- 16;
- 918;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- Accepted for publication in ApJ Supplement Series