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Related papers: BeppoSAX observations of rotation-powered pulsars

200 papers

We present the discovery of six millisecond pulsars (MSPs) in the High Time Resolution Universe (HTRU) survey for pulsars and fast transients carried out with the Parkes radio telescope. All six are in binary systems with approximately…

In this paper we give the first attempt to model the evolution of the spectrum of PSR B1259$-$63 radio emission while the pulsar orbits the companion Be star. As suggested by Kijak et al. (Mon. Not. R. Astron. Soc. 418:L114, 2011a) this…

Astrophysics of Galaxies · Physics 2016-08-24 M. Dembska , J. Kijak , O. Koralewska , W. Lewandowski , G. Melikidze , K. Rożko

It is commonly believed that millisecond radio pulsars have been spun up by transfer of matter and angular momentum from a low-mass companion during an X-ray active mass transfer phase. A subclass of low-mass X-ray binaries is that of the…

High Energy Astrophysical Phenomena · Physics 2015-05-19 M. N. Iacolina , M. Burgay , L. Burderi , A. Possenti , T. Di Salvo

NICER observed several rotation-powered millisecond pulsars to search for or confirm the presence of X-ray pulsations. When broad and sine-like, these pulsations may indicate thermal emission from hot polar caps at the magnetic poles on the…

Single pulse studies offer vital insights into the emission physics of pulsars, particularly in the case of young, nearby sources where intrinsic variability is often pronounced. PSR~B0656+14, known for its sporadic and sometimes intense…

High Energy Astrophysical Phenomena · Physics 2025-08-20 S. C. Susarla , R. Ferguson , O. A. Johnson , L. Vincetti , D. J. McKenna , E. F. Keane , P. J. McCauley , A. Golden

Optical photometry for the pulsar PSR0531+21 has been extended with new observations that strengthen evidence for a previously observed 60 seconds periodicity. This period is found to be increasing with time at approximately the same rate…

Astrophysics · Physics 2009-11-07 Andrej Cadez , Simon Vidrih , Mirjam Galicic , Alberto Carraminana

Millisecond radio pulsars are neutron stars that have been spun-up by the transfer of angular momentum during the low-mass X-ray binary phase. The transition from an accretion-powered to a rotation-powered pulsar takes place on evolutionary…

Astrophysics · Physics 2009-11-10 S. Campana , P. D'Avanzo , J. Casares , S. Covino , G. L. Israel , G. Marconi , Rob Hynes , P. Charles , L. Stella

We report the discovery and the results of follow-up timing observations of PSR J2045+3633 and PSR J2053+4650, two binary pulsars found in the Northern High Time Resolution Universe pulsar survey being carried out with the Effelsberg radio…

We discovered four millisecond pulsars (MSPs) in searches of 80 $\gamma$-ray sources conducted from 2015 to 2017 with the Murriyang radio telescope of the Parkes Observatory. We provide an overview of the survey and focus on the results of…

We report a 5.4\sigma\ detection of pulsed gamma rays from PSR B1821-24 in the globular cluster M28 using ~44 months of Fermi Large Area Telescope (LAT) data that have been reprocessed with improved instrument calibration constants. We…

We report on the discovery and timing observations of 29 distant long-period pulsars discovered in the ongoing Arecibo PALFA pulsar survey. Following discovery with the Arecibo Telescope, confirmation and timing observations of these…

Results obtained with BeppoSAX observations of blazars within various collaborative programs are presented. The spectral similarity "paradigm", whereby the spectral energy distributions of blazars follow a sequence, leading to a unified…

Astrophysics · Physics 2009-10-31 L. Maraschi , L. Chiappetti , G. Fossati , E. Pian , F. Tavecchio

We report on a long X-ray observation of the slow-rotating binary pulsar GX 1+4. BeppoSAX observed, in the 0.1-200 keV energy range, an event in which the source flux dropped for almost a day, and then recovered. During this event only the…

The pulsar PSR B1259-63 is in a highly eccentric 3.4-yr orbit with the Be star SS 2883. Timing observations of this pulsar, made over a 7-yr period using the Parkes 64-m radio telescope, cover two periastron passages, in 1990 August and…

Astrophysics · Physics 2009-10-30 N. Wex , S. Johnston , R. N. Manchester , A. G. Lyne , B. W. Stappers , M. Bailes

We present X-ray observations of two young energetic radio pulsars, PSRs B1046-58 and B1610-50, and their surroundings, using archival data from the Advanced Satellite for Cosmology and Astrophysics (ASCA). The energetic pulsar PSR B1046-58…

Astrophysics · Physics 2009-10-31 M. J. Pivovaroff , V. M. Kaspi , E. V. Gotthelf

We present the discovery of PSR J1728-4608, a new redback spider pulsar identified in images from the Australian SKA Pathfinder telescope. PSR J1728-4608 is a millisecond pulsar with a spin period of 2.86 ms, in a 5.05 hr orbit with a…

High Energy Astrophysical Phenomena · Physics 2025-12-11 F. Petrou , Y. Wang , N. Hurley-Walker , S. McSweeney , L. Zhang , R. G. Key , J. Freeburn , B. W. Meyers , David L. Kaplan , A. Zic , Tara Murphy , D. Dobie , Y. Maan

We report on the discovery of pulsations at a period of ~47 s in the persistent X-ray source 1RXS J225352.8+624354 (1RXS J2253) using five Chandra observations performed in 2009. The signal was also detected in Swift and ROSAT data,…

High Energy Astrophysical Phenomena · Physics 2013-08-06 P. Esposito , G. L. Israel , L. Sidoli , E. Mason , G. A. Rodríguez Castillo , J. P. Halpern , A. Moretti , D. Götz

We report the discovery of a fairly bright transient during observations with the Wide Field Cameras on board the BeppoSAX satellite in September 1996. It was detected at a peak intensity of 0.1 Crab (2 to 10 keV) and lasted between 6 and…

Astrophysics · Physics 2008-11-26 J. J. M. in 't Zand , J. Heise , J. M. Muller , A. Bazzano , M. Cocchi , L. Natalucci , P. Ubertini

The Crab nebula and its pulsar (referred to together as "Crab") have historically played a central role in astrophysics. True to their legacy, several unique discoveries have been made recently. The Crab was found to emit gamma-ray…

High Energy Astrophysical Phenomena · Physics 2014-06-16 Rolf Buehler , Roger Blandford

Using the Parkes radio telescope we have carried out deep observations of eleven unassociated gamma-ray sources. Periodicity searches of these data have discovered two millisecond pulsars, PSR J1103-5403 (1FGL J1103.9-5355) and PSR…