Dissemin is shutting down on January 1st, 2025

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American Astronomical Society, Astrophysical Journal, 2(958), p. 191, 2023

DOI: 10.3847/1538-4357/acee67

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The Third Fermi Large Area Telescope Catalog of Gamma-Ray Pulsars

Journal article published in 2023 by D. A. Smith ORCID, S. Abdollahi ORCID, M. Ajello ORCID, M. Bailes ORCID, L. Baldini ORCID, J. Ballet ORCID, M. G. Baring ORCID, C. Bassa, J. Becerra Gonzalez ORCID, R. Bellazzini ORCID, A. Berretta ORCID, B. Bhattacharyya ORCID, E. Bissaldi ORCID, R. Bonino ORCID, E. Bottacini and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Preprint: archiving forbidden
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Postprint: archiving forbidden
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Data provided by SHERPA/RoMEO

Abstract

Abstract We present 294 pulsars found in GeV data from the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. Another 33 millisecond pulsars (MSPs) discovered in deep radio searches of LAT sources will likely reveal pulsations once phase-connected rotation ephemerides are achieved. A further dozen optical and/or X-ray binary systems colocated with LAT sources also likely harbor gamma-ray MSPs. This catalog thus reports roughly 340 gamma-ray pulsars and candidates, 10% of all known pulsars, compared to ≤11 known before Fermi. Half of the gamma-ray pulsars are young. Of these, the half that are undetected in radio have a broader Galactic latitude distribution than the young radio-loud pulsars. The others are MSPs, with six undetected in radio. Overall, ≥236 are bright enough above 50 MeV to fit the pulse profile, the energy spectrum, or both. For the common two-peaked profiles, the gamma-ray peak closest to the magnetic pole crossing generally has a softer spectrum. The spectral energy distributions tend to narrow as the spindown power E ̇ decreases to its observed minimum near 1033 erg s−1, approaching the shape for synchrotron radiation from monoenergetic electrons. We calculate gamma-ray luminosities when distances are available. Our all-sky gamma-ray sensitivity map is useful for population syntheses. The electronic catalog version provides gamma-ray pulsar ephemerides, properties, and fit results to guide and be compared with modeling results.