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We have discovered six radio millisecond pulsars (MSPs) in a search with the Arecibo telescope of 34 unidentified gamma-ray sources from the Fermi Large Area Telescope (LAT) 4-year point source catalog. Among the 34 sources, we also…

High Energy Astrophysical Phenomena · Physics 2016-03-16 H. T. Cromartie , F. Camilo , M. Kerr , J. S. Deneva , S. M. Ransom , P. S. Ray , E. C. Ferrara , P. F. Michelson , K. S. Wood

Millisecond pulsars (MSPs) have been firmly established as a class of gamma-ray emitters via the detection of pulsations above 0.1 GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using thirteen months of LAT data significant…

High Energy Astrophysical Phenomena · Physics 2015-05-18 The Fermi LAT Collaboration , Pulsar Timing Consortium

We have used the Green Bank Telescope at 350MHz to search 50 faint, unidentified Fermi Gamma-ray sources for radio pulsations. So far, these searches have resulted in the discovery of 10 millisecond pulsars, which are plausible counterparts…

We report our analysis of the Fermi Large Area Telescope data for 39 millisecond pulsars (MSPs) listed in the second $\gamma$-ray pulsar catalog. Spectra of the pulsars are obtained. We fit the spectra with a function of a power law with…

High Energy Astrophysical Phenomena · Physics 2016-11-09 Yi Xing , Zhongxiang Wang

We report on the discovery of gamma-ray pulsations from five millisecond pulsars (MSPs) using the Fermi Large Area Telescope (LAT) and timing ephemerides provided by various radio observatories. We also present confirmation of the gamma-ray…

We report the results of searching pulsar-like candidates from the unidentified objects in the $3^{\rm rd}$ Catalog of Hard Fermi-LAT sources (3FHL). Using a machine-learning based classification scheme with a nominal accuracy of…

High Energy Astrophysical Phenomena · Physics 2020-05-01 C. Y. Hui , Jongsu Lee , K. L. Li , Sangin Kim , Kwangmin Oh , Shengda Luo , Alex P. Leung , A. K. H. Kong , J. Takata , K. S. Cheng

The Fermi Large Area Telescope (Fermi-LAT) has recently revealed a large population of gamma-ray emitting millisecond pulsars (MSPs) in our Galaxy. We aim to infer the properties of the Galactic population of gamma-ray emitting MSPs from…

Astrophysics of Galaxies · Physics 2015-06-15 Tristan Grégoire , Jürgen Knödlseder

The existence of a population of millisecond pulsars in the Galactic bulge is supported, along with other evidence, by the Fermi GeV excess, an anomalous {\gamma}-ray emission detected almost 15 years ago in the direction of the Galactic…

High Energy Astrophysical Phenomena · Physics 2025-12-19 J. Berteaud , F. Calore , M. Clavel , J. Marvil , S. Hyman , F. K. Schinzel , M. Kerr

The Large Area Telescope (LAT) on Fermi has detected ~150 gamma-ray pulsars, about a third of which were discovered in blind searches of the $\gamma$-ray data. Because the angular resolution of the LAT is relatively poor and blind searches…

High Energy Astrophysical Phenomena · Physics 2015-06-17 P. M. Saz Parkinson , A. Belfiore , P. Caraveo , A. De Luca , M. Marelli

Millisecond pulsars (MSPs) have been established as a class of high-energy ($\geq$0.1 GeV) emitters with the Large Area Telescope (LAT) aboard the \emph{Fermi Gamma-ray Space Telescope}. Most MSP gamma-ray light curves display sharp peaks…

High Energy Astrophysical Phenomena · Physics 2012-09-19 T. J. Johnson

This catalog summarizes 117 high-confidence > 0.1 GeV gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite. Half are neutron stars discovered using LAT data, through…

High Energy Astrophysical Phenomena · Physics 2013-09-25 LAT collaboration

The latest source catalog of the Fermi-LAT telescope contains more than 7000 $\gamma$-ray sources at GeV energies, with the two dominant source classes thought to be blazars and rotation-powered pulsars. Our target is the identification of…

High Energy Astrophysical Phenomena · Physics 2024-02-09 Martin G. F. Mayer , Werner Becker

The wealth of detections of millisecond pulsars (MSPs) in $\gamma$-rays by {\em Fermi} has spurred searches for these objects among the several unidentified $\gamma$-ray sources. Interesting targets are a sub-class of binary MSPs, dubbed…

High Energy Astrophysical Phenomena · Physics 2020-08-19 C. Braglia , R. P. Mignani , A. Belfiore , M. Marelli , G. L. Israel , G. Novara , A. De Luca , A. Tiengo , P. M. Saz Parkinson

We report on the results of deep X-ray follow-up observations of four unidentified Fermi/LAT gamma-ray sources at high Galactic latitudes using Suzaku. The studied objects were detected with high significance during the first 3 months of…

The population of $\gamma$-ray emitting millisecond pulsars (MSPs) is studied by using Monte-Carlo techniques. We simulate the Galactic distributions of the MSPs, and apply the outer gap model for the $\gamma$-ray emission from each…

High Energy Astrophysical Phenomena · Physics 2017-02-22 J. Takata , Y. Wang , K. S. Cheng

We present a summary of the Fermi Pulsar Search Consortium (PSC), an international collaboration of radio astronomers and members of the Large Area Telescope (LAT) collaboration, whose goal is to organize radio follow-up observations of…

Fermi has detected over 200 pulsars above 100 MeV. In a previous work, using 3 years of LAT data (1FHL catalog) we reported that 28 of these pulsars show emission above 10 GeV; only three of these, however, were millisecond pulsars (MSPs).…

High Energy Astrophysical Phenomena · Physics 2017-12-20 Pablo M. Saz Parkinson , Andrea Belfiore , David Carreto Fidalgo , Colin J. Clark , Matthew Kerr , Lars Nieder

Excess of gamma rays around the Galactic center (GC) observed in the Fermi Large Area Telescope (LAT) data is one of the most intriguing features in the gamma-ray sky. The spherical morphology and the spectral energy distribution with a…

High Energy Astrophysical Phenomena · Physics 2025-03-13 Dmitry V. Malyshev

We report the Fermi Large Area Telescope (LAT) detection of a $\gamma$-ray source at the position of SAX J1808.4$-$3658. This transient low-mass X-ray binary contains an accreting millisecond puslar, which is only seen during its month-long…

High Energy Astrophysical Phenomena · Physics 2015-02-04 Yi Xing , Zhongxiang Wang , V. Jithesh

Millisecond Pulsars are second most abundant source population discovered by the Fermi-LAT. They might contribute non-negligibly to the diffuse emission measured at high latitudes by Fermi-LAT, the IDGRB. Gamma-ray sources also contribute…

High Energy Astrophysical Phenomena · Physics 2014-11-05 F. Calore , M. Di Mauro , F. Donato