Results 41 to 50 of about 43,788 (263)

Multi-wavelength studies of the gamma-ray pulsar PSR J1907+0602

open access: yes, 2012
PSR J1907+0602 is a radio-faint, 107-ms GeV gamma-ray pulsar that was discovered with the Fermi LAT in a blind pulsar search. PSR J1907+0602 is located near the bright, extended TeV gamma-ray source MGRO J1908+06 which may be an associated pulsar wind ...
Pandel, Dirk, Scott, Robert
core   +1 more source

Analysing X-ray pulsar profiles [PDF]

open access: yesAstronomy & Astrophysics, 2012
Aims. By analysing the asymmetric pulse profiles of the transient Be/X-ray binaries 4U 0115+63 and V 0332+53 we aim to identify the origin of the pulsed emission to understand the geometry of the accretion onto the neutron star. Methods. We have applied the pulse-profile decomposition method, which enabled us to find two symmetric pulse profiles for ...
M. Sasaki   +4 more
openaire   +1 more source

Probing the Pulsar Wind Nebula of PSR B0355+54 [PDF]

open access: yes, 2006
We present XMM-Newton and Chandra X-ray observations of the middle-aged radio pulsar PSR B0355+54. Our X-ray observations reveal emission not only from the pulsar itself, but also from a compact diffuse component extending ~50'' in the opposite direction
Becker W.   +9 more
core   +2 more sources

The Anomalous X-Ray Pulsars

open access: yesAIP Conference Proceedings, 2001
The observational properties of the six known Anomalous X-ray Pulsars are described in the context of the main theoretical models for this enigmatic class of objects.
openaire   +2 more sources

Nuclear-Powered X-ray Millisecond Pulsars

open access: yes, 2021
Nuclear-powered X-ray millisecond pulsars are the third type of millisecond pulsars, which are powered by thermonuclear fusion processes. The corresponding brightness oscillations, known as burst oscillations, are observed during some thermonuclear X-ray bursts, when the burning and cooling accreted matter gives rise to an azimuthally asymmetric ...
openaire   +2 more sources

X-ray Pulsar-Based Navigation Using Pulse Phase Delay between Spacecraft and Verification with Real Data

open access: yesApplied Sciences
Pulsars are neutron stars with high rotation speeds and have extraordinary long-term rotational stability. X-ray pulsar-based navigation (XNAV) is a navigation method that estimates the position and velocity of a spacecraft using the X-ray radiation from
Kun Jiang   +3 more
doaj   +1 more source

XMM-Newton observations of PSr B1259-63 near the 2004 periastron passage

open access: yes, 2006
PSR B1259-63 is in a highly eccentric 3.4 year orbit with a Be star and crosses the Be star disc twice per orbit, just prior to and just after periastron.
Chernyakova, M.   +4 more
core   +1 more source

Comprehensive Measurement of Position and Velocity in the Transverse Direction Using the Crab Pulsar

open access: yesAerospace
Traditional X-ray pulsar ranging and velocity measurement methods only estimate the radial position and velocity information of the pulsar. For non-linear orbits, errors in the transverse position and velocity of the pulsar lead to errors in the radial ...
Yuan Feng   +4 more
doaj   +1 more source

Young Crab-like pulsars and luminous X-ray sources in starbursts and optically dull galaxies

open access: yes, 2004
Recent Chandra observations of nearby galaxies have revealed a number of ultraluminous X-ray sources (ULXs) with super-Eddington luminosities, away from the central regions of non-active galaxies. The nature of these sources is still debated.
Becker W.   +8 more
core   +2 more sources

Radio-quiet and radio-loud pulsars: similar in Gamma-rays but different in X-rays [PDF]

open access: yes, 2015
We present new Chandra and XMM-Newton observations of a sample of eight radio-quiet Gamma-ray pulsars detected by the Fermi Large Area Telescope. For all eight pulsars we identify the X-ray counterpart, based on the X-ray source localization and the best
De Luca, A.   +6 more
core   +3 more sources

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