Fermi Large Area Telescope Fourth Source Catalog
By S. Abdollahi, F. Acero, M. Ackermann, M. Ajello, W. Atwood, M. Axelsson, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri and 159 more. Astrophysical Journal Supplement Series, 2019
1,029 citations recorded by the source corpus.
We present the fourth Fermi Large Area Telescope catalog (4FGL) of γ-ray sources. Based on the first eight years of science data from the Fermi Gamma-ray Space Telescope mission in the energy range from 50 MeV to 1 TeV, it is the deepest yet in this energy range. Relative to the 3FGL catalog, the 4FGL catalog has twice as much exposure as well as a number of analysis improvements, including an updated model for the Galactic diffuse γ-ray emission, and two sets of light curves (one-year and two-month intervals). The 4FGL catalog includes 5064 sources above 4σ significance, for which we provide localization and spectral properties. Seventy-five sources are modeled explicitly as spatially extended, and overall, 358 sources are considered as identified based on angular extent, periodicity, or correlated variability observed at other wavelengths. For 1336 sources, we have not found plausible counterparts at other wavelengths. More than 3130 of the identified or associated sources are active galaxies of the blazar class, and 239 are pulsars.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/3f92132cb88a58e049b0b03289ba3089238f5c98
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In Astronomy and Astrophysics
- E. Orlando
- Anna Franckowiak
- Andrii Y. Neronov
- Troy A. Porter
- Igor V. Moskalenko
- I. Grenier
- G. Zaharijas
- G. Jóhannesson
In Nuclear and High Energy Physics
- E. Orlando
- Anna Franckowiak
- Andrii Y. Neronov
- Troy A. Porter
- I. Grenier
- Igor V. Moskalenko
- G. Zaharijas
- S. Gabici
Citations in the corpus
- Incremental Fermi Large Area Telescope Fourth Source Catalog (2022, methodology): “We have performed the same association procedure as in 4FGL, using the Bayesian method and likelihood-ratio method (see Abdollahi et al. 2020).”
- The First LHAASO Catalog of Gamma-Ray Sources (2023, background): “Additionally, we search for associated high-energy (HE) gamma-ray sources in the 4FGL catalog (Abdollahi et al. 2020), which covers the sources at energies ranging from 0.1 GeV to > 500 GeV.”