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

D.A Smith (1, 2) , S Abdollahi (3) , M Ajello , M Bailes , L Baldini , J Ballet (4) , M.G Baring , C Bassa , J. Becerra Gonzalez , R Bellazzini , A Berretta , B Bhattacharyya , E Bissaldi , R Bonino , E Bottacini , J Bregeon (5) , P Bruel (6) , M Burgay , T.H Burnett , R.A Cameron , F Camilo , R Caputo , P.A Caraveo , E Cavazzuti , G Chiaro , S Ciprini , C.J Clark , I Cognard (7, 8) , A Corongiu , P. Cristarella Orestano , M Crnogorcevic , A Cuoco , S Cutini , F d'Ammando , A de Angelis , M.E Decesar , S de Gaetano , R de Menezes , J Deneva , F de Palma , N Di Lalla , F Dirirsa , L Di Venere , A Domínguez , D Dumora (1) , S.J Fegan (6) , E.C Ferrara , A Fiori , H Fleischhack , C Flynn , A Franckowiak , P.C.C Freire , Y Fukazawa , P Fusco , G Galanti , V Gammaldi , F Gargano , D Gasparrini , F Giacchino , N Giglietto , F Giordano , M Giroletti , D Green , I.A Grenier (4) , L Guillemot (7, 8) , S Guiriec , M Gustafsson , A.K Harding , E Hays , J.W Hewitt , D Horan (6) , X Hou , F Jankowski (7) , R.P Johnson , T.J Johnson , S Johnston , J Kataoka , M.J Keith , M Kerr , M Kramer , M Kuss , L Latronico , S.-H Lee , D Li , J Li , B Limyansky , F Longo , F Loparco , L Lorusso , M.N Lovellette , M Lower , P Lubrano , A.G Lyne , Y Maan , S Maldera , R.N Manchester , A Manfreda , M Marelli , G Martí-Devesa , M.N Mazziotta , J.E Mcenery , I Mereu , P.F Michelson , M Mickaliger , W Mitthumsiri , T Mizuno , A.A Moiseev , M.E Monzani , A Morselli , M Negro , R Nemmen , L Nieder , E Nuss (9) , N Omodei , M Orienti , E Orlando , J.F Ormes , M Palatiello , D Paneque , G Panzarini , A Parthasarathy , M Persic , M Pesce-Rollins , R Pillera , H Poon , T.A Porter , A Possenti , G Principe , S Raino , R Rando , S.M Ransom , P.S Ray , M Razzano , S Razzaque , A Reimer , O Reimer , N Renault-Tinacci (4) , R.W Romani , M Sanchez-Conde , P.M. Saz Parkinson , L Scotton (9) , D Serini , C Sgro , R Shannon , V Sharma , Z Shen , E.J Siskind , G Spandre , P Spinelli , B.W Stappers , T.E Stephens , D.J Suson , S Tabassum , H Tajima , D Tak , G Theureau (7, 8) , D.J Thompson , O Tibolla , D.F Torres , J Valverde , C Venter , Z Wadiasingh , N Wang , P Wang , P Weltevrede , K Wood , J Yan , G Zaharijas , C Zhang , W Zhu

1 LP2I - Bordeaux - Laboratoire de Physique des Deux Infinis Bordeaux
2 LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]
3 IRAP - Institut de recherche en astrophysique et planétologie
4 AIM (UMR7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
5 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
6 LLR - Laboratoire Leprince-Ringuet
7 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
8 USN - Unité Scientifique de la Station de Nançay
9 LUPM - Laboratoire Univers et Particules de Montpellier

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 co-located 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 $\leq 11$ 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 6 undetected in radio. Overall, >235 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 $\dot E$ decreases to its observed minimum near $10^{33}$ 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.

Mots clés: X-ray: binary; gamma ray; pulsar; energy spectrum; GeV; synchrotron radiation; sensitivity; pole; spectral energy distribution; GLAST; electron; optical; crossing; rotation; galaxy

Domaines: Astrophysique [astro-ph]

D.A Smith, S Abdollahi, M Ajello, M Bailes, L Baldini, et al.. The Third Fermi Large Area Telescope Catalog of Gamma-ray Pulsars. Astrophys.J., 2023, 958 (2), pp.191. ⟨10.3847/1538-4357/acee67⟩. ⟨hal-04179157⟩