Results 71 to 80 of about 1,910,738 (272)
Early phases of different types of isolated neutron star
, 2004 Two Galactic isolated strong X-ray pulsars seem to be in the densest environments compared to other types of Galactic pulsar. X-ray pulsar J1846-0258 can be in an early phase of anomalous X-ray pulsars and soft gamma repeaters if its average braking ...
AŞKIN ANKAY +12 more
core +1 more source
Resonant Effect for Breit–Wheeler Process in the Field of an X-ray Pulsar
Universe, 2020 The resonant process of the creation of an ultrarelativistic electron–positron pair by two hard gamma quanta in the field of an X-ray pulsar (the Breit–Wheeler process modified by an external field) was theoretically studied.
Vitalii D. Serov +2 more
doaj +1 more source
Improved Measurements of the IXPE Crab Polarization
The Astrophysical Journal, 2023 X-ray polarization from the Imaging X-ray Polarimetry Explorer (IXPE) provides an important new probe of the geometry of the pulsar emission zone and of particle acceleration in the surrounding pulsar wind nebula.
Josephine Wong +2 more
doaj +1 more source
On the geometry of the X-ray emission from pulsars: the changing aspect of the Be/X-ray pulsar SXP348 [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT The X-ray source SXP348 is a high-mass X-ray binary system in the Small Magellanic Cloud. Since its 1998 discovery by BeppoSAX, this pulsar has exhibited a spin period of ∼340−350 s. In an effort to determine the orientation and magnetic geometry of this source, we used our geometric model Polestar to fit 71 separate pulse ...
Andreas Zezas +8 more
openaire +3 more sources
The emerging population of pulsar wind nebulae in hard X-rays
, 2009 The hard X-ray synchrotron emission from pulsar wind nebulae (PWNe) probes energetic particles, closely related to the pulsar injection power at the present time. INTEGRAL has disclosed the yet poorly known population of hard X-ray pulsar/PWN systems. We
D. Götz +6 more
core +1 more source
Swinging between rotation and accretion power in a binary millisecond pulsar
EPJ Web of Conferences, 2014 We present the discovery of IGR J18245–2452, the first millisecond pulsar observed to swing between a rotation-powered, radio pulsar state, and an accretion-powered X-ray pulsar state [31]. This transitional source represents the most convincing proof of
Papitto A. +3 more
doaj +1 more source
Swift Follow-up of Reported Radio Pulsars at Fermi 4FGL Unassociated Sources
The Astrophysical Journal, 2023 Following the discovery of radio pulsars at the position of Fermi-LAT unassociated sources by the TRAPUM group, we conduct Swift-XRT observations of six of those 4FGL sources to determine if any pulsar-like X-ray sources are present and to confirm the ...
Stephen Kerby +2 more
doaj +1 more source
Outburst of the 2 s Anomalous X-Ray Pulsar 1E 1547.0–5408 [PDF]
, 2007 Following our discovery of radio pulsations from the newly recognized anomalous X-ray pulsar (AXP) 1E 1547.0–5408, we initiated X-ray monitoring with the Swift X-ray telescope and obtained a single target-of-opportunity observation with the Newton X-ray ...
J. Halpern +4 more
semanticscholar +1 more source
Discovery of an Isolated Compact Object at High Galactic Latitude
, 2007 We report discovery of a compact object at high Galactic latitude. The object was initially identified as a ROSAT All-Sky Survey Bright Source Catalog X-ray source, 1RXS J141256.0+792204, statistically likely to possess a high X-ray to optical flux ratio.
Fox, D. B. +2 more
core +1 more source
Ultraluminous X-ray sources as neutrino pulsars [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 7 pages, 3 figures, 1 table, accepted for publication in ...
Valery F. Suleimanov +9 more
openaire +6 more sources