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Significant gamma-ray pulsations have been detected from ~40 millisecond pulsars (MSPs) using 3 years of sky-survey data from the Fermi LAT and radio timing solutions from across the globe. We have fit the radio and gamma-ray pulse profiles…

High Energy Astrophysical Phenomena · Physics 2019-08-14 T. J. Johnson , A. K. Harding , C. Venter , J. E. Grove

(abridged) Thanks to the recent discovery by Fermi of about fifty new gamma-ray pulsars, it becomes possible to look for statistical properties of their pulsed high-energy emission, especially their light-curves and phase-resolved spectra.…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Jérôme Pétri

Since the launch of the Large Area Telescope (LAT) on board the Fermi spacecraft in June 2008, the number of observed gamma-ray pulsars has increased dramatically. A large number of these are also observed at radio frequencies. Constraints…

High Energy Astrophysical Phenomena · Physics 2012-01-24 A. S. Seyffert , C. Venter , T. J. Johnson , A. K. Harding

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

The nine millisecond pulsars (MSPs) that have now been detected by Fermi-LAT are providing an excellent opportunity to probe the emission geometry of these ancient compact objects. As they are radio-loud, one may use the relative phase lags…

High Energy Astrophysical Phenomena · Physics 2009-12-15 C. Venter , A. K. Harding , L. Guillemot

Observing simultaneously pulsed radio and gamma-ray emission from these stars helps to constrain the geometry and radiation mechanisms within their magnetosphere and to localize the multiple photon production sites. In this paper, we fit…

High Energy Astrophysical Phenomena · Physics 2021-10-20 J. Pétri , D. Mitra

Pulsed gamma rays have been detected with the Fermi Large Area Telescope (LAT) from more than 20 millisecond pulsars (MSPs), some of which were discovered in radio observations of bright, unassociated LAT sources. We have fit the radio and…

High Energy Astrophysical Phenomena · Physics 2011-11-04 Tyrel J. Johnson , Alice K. Harding , Christo Venter

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

The dramatic increase in the number of known gamma-ray pulsars since the launch of the Fermi Gamma-ray Space Telescope (formerly GLAST) offers the first opportunity to study a population of these high-energy objects. This catalog summarizes…

High Energy Astrophysical Phenomena · Physics 2019-08-13 A. A. Abdo

The Fermi Gamma-Ray Space Telescope has discovered many gamma-ray pulsars, both as radio-loud objects and radio-quiet or radio-weak pulsars that have been identified through blind period searches. The latter presumably have gamma-ray beams…

High Energy Astrophysical Phenomena · Physics 2010-02-02 Marco Pierbattista , Isabelle Grenier , Alice Harding , Peter Gonthier

The Fermi Large Area Telescope (LAT) has recently reported the detection of pulsed gamma-rays from 6 young pulsars (J0631+1036, J0659+1414, J0742-2822, J1420-6048, J1509-5850, and J1718-3825), all exhibiting single-peaked pulse profiles…

High Energy Astrophysical Phenomena · Physics 2011-05-23 A. S. Seyffert , C. Venter , O. C. de Jager , A. K. Harding

Context: GeV gamma-ray pulsations from over 140 pulsars have been characterized using the Fermi Large Area Telescope, enabling improved understanding of the emission regions within the neutron star magnetospheres, and the contributions of…

Millisecond pulsars (MSPs) are a growing class of gamma-ray emitters. Pulsed gamma-ray signals have been detected from more than 40 MSPs with the Fermi Large Area Telescope (LAT). The wider radio beams and more compact magnetospheres of…

High Energy Astrophysical Phenomena · Physics 2014-06-24 T. J. Johnson , C. Venter , A. K. Harding , L. Guillemot , D. A. Smith , M. Kramer , O. Celik , P. R. den Hartog , E. C. Ferrara , X. Hou , J. Lande , P. S. Ray

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…

High Energy Astrophysical Phenomena · Physics 2023-11-29 David A. Smith , Philippe Bruel , Colin J. Clark , Lucas Guillemot , Matthew T. Kerr , Paul Ray , Soheila Abdollahi , Marco Ajello , Luca Baldini , Jean Ballet , Matthew Baring , Cees Bassa , Josefa Becerra Gonzalez , Ronaldo Bellazzini , Alessandra Berretta , Bhaswati Bhattacharyya , Elisabetta Bissaldi , Raffaella Bonino , Eugenio Bottacini , Johan Bregeon , Marta Burgay , Toby Burnett , Rob Cameron , Fernando Camilo , Regina Caputo , Patrizia Caraveo , Elisabetta Cavazzuti , Graziano Chiaro , Stefano Ciprini , Ismael Cognard , Paolo Cristarella Orestano , Milena Crnogorcevic , Alessandro Cuoco , Sara Cutini , Filippo D'Ammando , Alessandro de Angelis , Salvatore De Gaetano , Raniere de Menezes , Francesco de Palma , Megan DeCesar , Julia Deneva , Niccola Di Lalla , Leonardo Di Venere , Feraol Fana Dirirsa , Alberto Dominguez , Denis Dumora , Stephen Fegan , Elizabeth Ferrara , Alessio Fiori , Henrike Fleischhack , Chris Flynn , Anna Franckowiak , Paulo Freire , Yasushi Fukazawa , Piergiorgio Fusco , Giorgio Galanti , Viviana Gammaldi , Fabio Gargano , Dario Gasparrini , Federica Giacchino , Nico Giglietto , Francesco Giordano , Marcello Giroletti , David Green , Isabelle Grenier , Sylvain Guiriec , Michael Gustafsson , Alice Harding , Liz Hays , John Hewitt , Deirdre Horan , Xian Hou , Fabian Jankowski , Tyrel Johnson , Robert Johnson , Simon Johnston , Jun Kataoka , Michael J. Keith , Michael Kramer , Michael Kuss , Luca Latronico , Shiu-Hang Lee , Di Li , Jian Li , Brent Limyansky , Francesco Longo , Francesco Loparco , Leonarda Lorusso , Michael Lovellette , Marcus Lower , Pasquale Lubrano , Andrew Lyne , Simone Maldera , Richard Manchester , Alberto Manfreda , Martino Marelli , Guillem Marta-Devesa , Mario Nicola Mazziotta , Julie McEnery , Isabella Mereu , Peter Michelson , Warit Mitthumsiri , Tsunefumi Mizuno , Alex Moiseev , Maria Elena Monzani , Aldo Morselli , Michela Negro , Rodrigo Nemmen , Lars Nieder , Eric Nuss , Nicola Omodei , Monica Orienti , Elena Orlando , Jonathan F. Ormes , Michele Palatiello , David Paneque , Giuliana Panzarini , Massimo Persic , Melissa Pesce-Rollins , Roberta Pillera , Helen Poon , Troy Porter , Giacomo Principe , Silvia Raino , Riccardo Rando , Scott Ransom , Massimiliano Razzano , Soebur Razzaque , Anita Reimer , Olaf Reimer , Nicolas Renault-Tinacci , Roger Romani , Miguel A. Sanchez-Conde , Pablo Saz Parkinson , Lorenzo Scotton , Davide Serini , Carmelo Sgro , Ryan Shannon , Vidushi Sharma , Eric J. Siskind , Gloria Spandre , Paolo Spinelli , Ben Stappers , Tom Stephens , Dan Suson , Hiro Tajima , Dongguen Tak , Gilles Theureau , David Thompson , Omar Tibolla , Diego F. Torres , Janeth Valverde , Christo Venter , Zorawar Wadiasingh , Nina Wang , Pei Wang , Patrick Weltevrede , Kent Wood , Gabrijela Zaharijas

The Large Area Telescope aboard the Fermi spacecraft has detected more than 200 $\gamma$-ray pulsars since its launch in 2008. By concurrently fitting standard geometric model light curves onto Fermi and radio data, researchers have…

High Energy Astrophysical Phenomena · Physics 2018-08-30 M. C. Bezuidenhout , C. Venter , A. S. Seyffert , A. K. Harding

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…

The launch of the Fermi Gamma-ray Space Telescope has heralded a new era in the study of gamma-ray pulsars. The population of confirmed gamma-ray pulsars has gone from 6-7 to more than 60, and the superb sensitivity of the Large Area…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Paul S. Ray , Pablo M. Saz Parkinson

An interesting new high-energy pulsar sub-population is emerging following early discoveries of gamma-ray millisecond pulsars (MSPs) by the Fermi Large Area Telescope (LAT). We present results from 3D emission modeling, including the…

High Energy Astrophysical Phenomena · Physics 2014-11-20 C. Venter , A. K. Harding , L. Guillemot

Since its launch in 2008, the Fermi Large Area Telescope (LAT) has detected over 200 -ray pulsars above 100 MeV. This population of pulsars is characterised by a rich diversity of light curve morphologies. Researchers have been using both…

High Energy Astrophysical Phenomena · Physics 2017-12-25 M. C. Bezuidenhout , C. Venter , A. S. Seyffert , A. K. Harding

We report the detection of pulsed gamma-rays for PSRs J0631+1036, J0659+1414, J0742-2822, J1420-6048, J1509-5850 and J1718-3825 using the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope (formerly known as GLAST).…

Solar and Stellar Astrophysics · Physics 2010-01-06 The Fermi LAT collaboration , the Fermi Pulsar Timing Consortium
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