Results 51 to 60 of about 1,910,738 (272)
Effect of Ephemeris on Pulsar Timing and Navigation Accuracy Based on X-ray Pulsar Navigation-I Data
Solar system ephemeris is very important for pulsar timing and navigation. In order to explore the effect of different precision ephemerides on X-ray pulsar timing and navigation, the differences between timing and navigation results with four JPL ...
Yongtao Deng, Shuanggen Jin
doaj +1 more source
SEXTANT X-Ray Pulsar Navigation Demonstration: Additional On-Orbit Results
The Station Explorer for X-ray Timing and Navigation Technology (SEXTANT) is a technology demonstration enhancement to the Neutron-star Interior Composition Explorer (NICER) mission.
Luke B. Winternitz+16 more
semanticscholar +1 more source
Suzaku Detection of Diffuse Hard X-Ray Emission outside Vela X [PDF]
Vela X is a large, 3x2 degrees, radio-emitting pulsar wind nebula (PWN) powered by the Vela pulsar in the Vela supernova remnant. Using four Suzaku/XIS observations pointed just outside Vela X, we find hard X-ray emission extending throughout the fields ...
Bamba, Aya+11 more
core +3 more sources
Unpulsed X-rays from Pulsars [PDF]
The radio emission from pulsars is energetically insignificant, yet its distinctive character led to their discovery and subsequent identification with rotating magnetized neutron stars. In the intervening thirteen years, a wealth of radio data have been accumulated from which we have learned something of the magnetospheric properties, stellar ...
openaire +2 more sources
X-RAY EVOLUTION OF PULSAR WIND NEBULAE [PDF]
During the search for counterparts of very-high-energy gamma-ray sources, we serendipitously discovered large, extended, low surface brightness emission from PWNe around pulsars with the ages up to ~100 kyrs, a discovery made possible by the low and stable background of the Suzaku X-ray satellite.
Bamba, A.+6 more
openaire +4 more sources
Multi-wavelength studies of the gamma-ray pulsar PSR J1907+0602
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
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 +3 more sources
XMM-Newton and Chandra Observations of the Candidate Fermi-LAT Pulsar 4FGL J1015.5-6030
4FGL J1015.5-6030 is an unidentified Fermi-LAT source hosting a bright, extended X-ray source whose X-ray spectrum is consistent with that of a young pulsar, yet no pulsations have been found.
Jeremy Hare+4 more
doaj +1 more source
Transient X-ray pulsar V 0332+53: pulse-phase-resolved spectroscopy and the reflection model [PDF]
We present the results of the pulse phase- and luminosity-resolved spectroscopy of the transient X-ray pulsar V0332+53, performed for the first time in a wide luminosity range (1-40)x10^{37} erg/s during a giant outburst observed by the RXTE observatory ...
A. Lutovinov+21 more
semanticscholar +1 more source
Accreting magnetars: linking ultraluminous X-ray pulsars and the slow pulsation X-ray pulsars [PDF]
Possible manifestations of accreting magnetars are discussed. It is shown that the four ultra-luminous X-ray pulsars can be understood in the accreting low magnetic field magnetar scenario. The NGC300 ULX1 pulsar may have a higher dipole magnetic field than other sources.
W. S. Wang, W. S. Wang, Hao Tong
openaire +3 more sources