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The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope routinely detects the highly dust-absorbed, reddened, and MeV-peaked flat spectrum radio quasar PKS 1830-211 (z=2.507). Its apparent isotropic gamma-ray luminosity…

High Energy Astrophysical Phenomena · Physics 2015-06-23 The Fermi LAT Collaboration , A. A. Abdo , M. Ackermann , M. Ajello , A. Allafort , M. A. Amin , L. Baldini , G. Barbiellini , D. Bastieri , K. Bechtol , R. Bellazzini , R. D. Blandford , E. Bonamente , A. W. Borgland , J. Bregeon , M. Brigida , R. Buehler , D. Bulmash , S. Buson , G. A. Caliandro , R. A. Cameron , P. A. Caraveo , E. Cavazzuti , C. Cecchi , E. Charles , C. C. Cheung , J. Chiang , G. Chiaro , S. Ciprini , R. Claus , J. Cohen-Tanugi , J. Conrad , R. H. D. Corbet , S. Cutini , F. D'Ammando , A. de Angelis , F. de Palma , C. D. Dermer , P. S. Drell , A. Drlica-Wagner , C. Favuzzi , J. Finke , W. B. Focke , Y. Fukazawa , P. Fusco , F. Gargano , D. Gasparrini , N. Gehrels , N. Giglietto , F. Giordano , M. Giroletti , T. Glanzman , I. A. Grenier , J. E. Grove , S. Guiriec , D. Hadasch , M. Hayashida , E. Hays , R. E. Hughes , Y. Inoue , M. S. Jackson , T. Jogler , G. Jòhannesson , A. S. Johnson , T. Kamae , J. Knödlseder , M. Kuss , J. Lande , S. Larsson , L. Latronico , F. Longo , F. Loparco , B. Lott , M. N. Lovellette , P. Lubrano , G. M. Madejski , M. N. Mazziotta , J. Mehault , P. F. Michelson , T. Mizuno , M. E. Monzani , A. Morselli , I. V. Moskalenko , S. Murgia , R. Nemmen , E. Nuss , M. Ohno , T. Ohsugi , D. Paneque , J. S. Perkins , M. Pesce-Rollins , F. Piron , G. Pivato , T. A. Porter , S. Rainò , R. Rando , M. Razzano , A. Reimer , O. Reimer , L. C. Reyes , S. Ritz , C. Romoli , M. Roth , P. M. Saz Parkinson , C. Sgrò , E. J. Siskind , G. Spandre , P. Spinelli , H. Takahashi , Y. Takeuchi , T. Tanaka , J. G. Thayer , J. B. Thayer , D. J. Thompson , L. Tibaldo , M. Tinivella , D. F. Torres , G. Tosti , E. Troja , V. Tronconi , T. L. Usher , J. Vandenbroucke , V. Vasileiou , G. Vianello , V. Vitale , A. P. Waite , M. Werner , B. L. Winer , K. S. Wood

We report on the first year of Fermi gamma-ray observations of pulsed high-energy emission from the old PSR J2043+2740. The study of the gamma-ray efficiency of such old pulsars gives us an insight into the evolution of pulsars' ability to…

Astrophysics of Galaxies · Physics 2015-05-20 A. Noutsos , A. A. Abdo , M. Ackermann , M. Ajello , J. Ballet , G. Barbiellini , M. G. Baring , D. Bastieri , K. Bechtol , R. Bellazzini , B. Berenji , E. Bonamente , A. W. Borgland , J. Bregeon , A. Brez , M. Brigida , P. Bruel , R. Buehler , G. Busetto , G. A. Caliandro , R. A. Cameron , F. Camilo , P. A. Caraveo , J. M. Casandjian , C. Cecchi , O. Celik , S. Chaty , A. Chekhtman , J. Chiang , S. Ciprini , R. Claus , I. Cognard , J. Cohen-Tanugi , S. Colafrancesco , S. Cutini , C. D. Dermer , F. de Palma , P. S. Drell , D. Dumora , C. M. Espinoza , C. Favuzzi , E. C. Ferrara , W. B. Focke , M. Frailis , P. C. C. Freire , Y. Fukazawa , S. Funk , P. Fusco , F. Gargano , S. Germani , N. Giglietto , F. Giordano , M. Giroletti , G. Godfrey , P. Grandi , I. A. Grenier , J. E. Grove , L. Guillemot , S. Guiriec , A. K. Harding , R. E. Hughes , M. S. Jackson , G. Johannesson , A. S. Johnson , T. J. Johnson , W. N. Johnson , S. Johnston , T. Kamae , H. Katagiri , J. Kataoka , J. Knoedlseder , M. Kramer , M. Kuss , J. Lande , S. -H. Lee , F. Longo , F. Loparco , M. N. Lovellette , P. Lubrano , A. G. Lyne , A. Makeev , M. Marelli , M. N. Mazziotta , J. E. McEnery , J. Mehault , P. F. Michelson , T. Mizuno , C. Monte , M. E. Monzani , A. Morselli , I. V. Moskalenko , S. Murgia , M. Naumann-Godo , P. L. Nolan , E. Nuss , T. Ohsugi , A. Okumura , N. Omodei , E. Orlando , J. F. Ormes , J. H. Panetta , D. Parent , V. Pelassa , M. Pepe , M. Persic , M. Pesce-Rollins , F. Piron , T. A. Porter , S. Rain , P. S. Ray , M. Razzano , A. Reimer , O. Reimer , T. Reposeur , R. W. Romani , H. F. -W. Sadrozinski , A. Sander , P. M. Saz Parkinson , C. Sgro , E. J. Siskind , D. A. Smith , P. D. Smith , G. Spandre , P. Spinelli , B. W. Stappers , M. S. Strickman , D. J. Suson , H. Takahashi , T. Tanaka , G. Theureau , D. J. Thompson , S. E. Thorsett , O. Tibolla , D. F. Torres , A. Tramacere , T. L. Usher , J. Vandenbroucke , G. Vianello , N. Vilchez , M. Villata , V. Vitale , A. von Kienlin , A. P. Waite , P. Wang , K. Watters , P. Weltevrede , B. L. Winer , K. S. Wood , M. Ziegler

The Fermi Large Area Telescope, in collaboration with several groups from the radio community, have had marvellous success at uncovering new gamma-ray millisecond pulsars (MSPs). In fact, MSPs now make up a sizable fraction of the total…

High Energy Astrophysical Phenomena · Physics 2015-05-19 C. Venter , A. K. Harding , T. J. Johnson

We analyzed the globular cluster M5 (NGC 5904) using 15 years of gamma-ray data from the Fermi Large Area Telescope (LAT). Using rotation ephemerides generated from Arecibo and FAST radio telescope observations, we searched for gamma-ray…

High Energy Astrophysical Phenomena · Physics 2024-03-26 X. Hou , W. Zhang , P. C. C. Freire , D. F. Torres , J. Ballet , D. A. Smith , T. J. Johnson , M. Kerr , C. C. Cheung , L. Guillemot , J. Li , L. Zhang , A. Ridolfi , P. Wang , D. Li , J. Yuan , N. Wang

We report the discovery of gamma-ray pulsations from the nearby isolated millisecond pulsar PSR J0030+0451 with the Large Area Telescope (LAT) on the \emph{Fermi} Gamma-ray Space Telescope (formerly GLAST). This discovery makes PSR…

High Energy Astrophysical Phenomena · Physics 2009-07-22 LAT Collaboration

Pulsars are the most numerous class of Galactic gamma-ray sources detected by the Fermi Large Area Telescope (LAT). Young pulsars occasionally experience sudden timing discontinuities called glitches, characterized by rapid changes in…

High Energy Astrophysical Phenomena · Physics 2026-01-08 Giovanni Cozzolongo , Alessio Fiori , Massimiliano Razzano , Pablo M. Saz Parkinson

We present a catalog of gamma-ray sources at energies above 10 GeV based on data from the Large Area Telescope (LAT) accumulated during the first three years of the Fermi Gamma-ray Space Telescope mission. The first Fermi-LAT catalog of…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 LAT Collaboration

Observations using the Fermi Large Area Telescope (Fermi-LAT) have found a significant gamma-ray excess surrounding the center of the Milky Way (GC). One possible interpretation of this excess invokes gamma-ray emission from an undiscovered…

High Energy Astrophysical Phenomena · Physics 2016-03-23 Tim Linden

We report on gamma-ray observations of the Crab Pulsar and Nebula using 8 months of survey data with the Fermi Large Area Telescope (LAT). The high quality light curve obtained using the ephemeris provided by the Nancay and Jodrell Bank…

High Energy Astrophysical Phenomena · Physics 2012-08-27 The Fermi LAT collaboration , the Fermi Pulsar Timing Consortium , : , A. A. Abdo

We report on the analysis of 13 gamma-ray pulsars discovered in the Einstein@Home blind search survey using Fermi Large Area Telescope (LAT) Pass 8 data. The 13 new gamma-ray pulsars were discovered by searching 118 unassociated LAT sources…

We use recent population synthesis results to investigate the distribution of pulsars in the frequency space, having a gravitational strain high enough to be detected by the future generations of laser beam interferometers. We find that…

Astrophysics · Physics 2008-11-26 Tania Regimbau , Jose Antonio de Freitas Pacheco

Recent studies have found a positive correlation between the star-formation rate of galaxies and their gamma-ray luminosity. Galaxies with a high star-formation rate are expected to produce a large amount of high-energy cosmic rays, which…

High Energy Astrophysical Phenomena · Physics 2016-08-17 Cesar Rojas-Bravo , Miguel Araya

Using archival as well as freshly acquired data, we assess the X-ray behaviour of the Fermi/LAT gamma-ray pulsars listed in the First Fermi source catalog. After revisiting the relationships between the pulsars' rotational energy losses and…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Martino Marelli , Andrea De Luca , Patrizia A. Caraveo

We announce the discovery of 1 - 100 GeV gamma-ray emission from the archetypal TeV pulsar wind nebula HESS J1825-137 using 20 months of survey data from the Fermi Large Area Telescope (LAT). The gamma-ray emission detected by the LAT is…

Some pulsars have their maximum observable energy output in the gamma-ray band, offering the possibility of using these high-energy photons as probes of the particle acceleration and interaction processes in pulsar magnetospheres. After an…

Astrophysics · Physics 2009-06-23 D. J. Thompson

$\gamma$-ray spectra of pulsars have been mostly studied in a phenomenological way, by fitting them to a cut-off power-law function. Here, we analyze a model where pulsed emission comes from synchro-curvature processes in a gap. We…

High Energy Astrophysical Phenomena · Physics 2015-06-24 Daniele Viganò , Diego F. Torres

We compare radio profile widths of young, energetic gamma-ray-detected and non-gamma-ray-detected pulsars. We find that the latter typically have wider radio profiles, with the boundary between the two samples exhibiting a dependence on the…

High Energy Astrophysical Phenomena · Physics 2016-11-15 Simon C. Rookyard , Patrick Weltevrede , Simon Johnston , Matthew Kerr

The Fermi Large Area Telescope has revolutionised the $\gamma$-ray pulsar field, increasing the population to over 250 detected pulsars. The majority display spectra with exponential cutoffs in a narrow range around a few GeV. Models…

High Energy Astrophysical Phenomena · Physics 2021-03-22 M. Barnard

Pulsars play a crucial astrophysical role as the highly energetic compact radio, X-ray, and gamma-ray sources. Our previous works show that the radio pulsars found as the pulsing gamma sources by the Large Area Telescope (LAT) on the board…

High Energy Astrophysical Phenomena · Physics 2018-08-29 I. F. Malov , M. A. Timirkeeva

The Large Area Telescope (LAT) aboard the $Fermi$ spacecraft routinely observes high-energy emission from gamma-ray bursts (GRBs). Here we present the second catalog of LAT-detected GRBs, covering the first 10 years of operations, from 2008…

High Energy Astrophysical Phenomena · Physics 2019-06-28 M. Axelsson , E. Bissaldi , N. Omodei , G. Vianello
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