The Fermi-LAT Light Curve Repository: A resource for the time-domain and multi-messenger communities

dc.contributor.authorValverde, Janeth
dc.contributor.authorKocevski, D.
dc.contributor.authorNegro, M.
dc.contributor.authorGarrappa, S.
dc.contributor.authorBrill, A.
dc.contributor.authorFermi-LAT collaboration
dc.date.accessioned2023-09-08T21:35:48Z
dc.date.available2023-09-08T21:35:48Z
dc.date.issued2023-08-18
dc.description38th International Cosmic Ray Conference (ICRC2023), Nagoya, Japan, 26 July - 3 August, 2023.en
dc.description.abstractFor over 14 years the Fermi Large Area Telescope (Fermi-LAT) has been monitoring the entire high-energy gamma-ray sky providing the best sampled 0.1– >1TeV photons to this day. As a result, the Fermi-LAT has been serving the time-domain and multi-messenger (TDAMM) community as the main source of gamma-ray activity alerts. All of this makes the Fermi-LAT a key instrument towards understanding the underlying physics behind the most extreme objects in the universe. However, generating mission-long LAT light curves can be very computationally expensive. The Fermi-LAT light curve repository (LCR) tackles this issue. The LCR is a public library of gamma-ray light curves for 1525 Fermi-LAT sources deemed variable in the 4FGL-DR2 catalog. The repository consists of light curves on timescales of days, weeks, and months, generated through a full-likelihood unbinned analysis of the source and surrounding region, providing flux and photon index measurements for each time interval. Hosted at NASA's FSSC, the library provides users with access to this continually updated light curve data, serving as a resource to the TDAMM communities.en
dc.description.sponsorshipThis material is based upon work supported by NASA under award number 80GSFC21M0002. The Fermi-LAT Collaboration acknowledges support for LAT development, operation and data analysis from NASA and DOE (United States), CEA/Irfu and IN2P3/CNRS (France), ASI and INFN (Italy), MEXT, KEK, and JAXA (Japan), and the K.A. Wallenberg Foundation, the Swedish Research Council and the National Space Board (Sweden). Science analysis support in the operations phase from INAF (Italy) and CNES (France) is also gratefully acknowledged. This work performed in part under DOE Contract DE-AC02-76SF00515.en
dc.description.urihttps://pos.sissa.it/444/1547/en
dc.format.extent7 pagesen
dc.genreconference papers and proceedingsen
dc.identifierdoi:10.13016/m24qly-ddex
dc.identifier.citationValverde, Janeth, Daniel Kocevski, Michela Negro, Simone Garrappa, and Aryeh Brill. “The Fermi-LAT Light Curve Repository: A Resource for the Time-Domain and Multi-Messenger Communities.” In Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), 444:1547. SISSA Medialab, 2023. https://doi.org/10.22323/1.444.1547.en
dc.identifier.urihttps://doi.org/10.22323/1.444.1547
dc.identifier.urihttp://hdl.handle.net/11603/29631
dc.language.isoenen
dc.publisherProceedings of Scienceen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Physics Department
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)*
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleThe Fermi-LAT Light Curve Repository: A resource for the time-domain and multi-messenger communitiesen
dc.typeTexten

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