Results 31 to 40 of about 43,788 (263)
X-ray Polarimetry of X-ray Pulsars
GalaxiesRadiation from X-ray pulsars (XRPs) was expected to be strongly linearly polarized owing to a large difference in their ordinary and extraordinary mode opacities. The launch of IXPE allowed us to check this prediction. IXPE observed a dozen X-ray pulsars, discovering pulse-phase dependent variation of the polarization degree (PD) and polarization angle
Juri Poutanen +2 more
openaire +4 more sources
A new nearby pulsar wind nebula overlapping the RX J0852.0-4622 supernova remnant [PDF]
, 2012 Energetic pulsars can be embedded in a nebula of relativistic leptons which is powered by the dissipation of the rotational energy of the pulsar.
Acero, F. +4 more
core +4 more sources
Resolving the Bow Shock and Tail of the Cannonball Pulsar PSR J0002+6216
The Astrophysical Journal, 2023 We present X-ray and radio observations of the recently discovered bow-shock pulsar wind nebula (PWN) associated with PSR J0002+6216, characterizing the PWN morphology, which was unresolved in previous studies.
P. Kumar +6 more
doaj +1 more source
On X-Ray Pulsar Radiation Mechanisms [PDF]
Symposium - International Astronomical Union, 1981 In this report we shall discuss the origin of radiation from the neutron star component of X-ray binary systems whose spectra contain cyclotron lines (Her X-1 and 4U0115+63). A relevant model of the polar region of a neutron star is presented in Figure 1.
openaire +1 more source
A Bayesian Classifier for X-Ray Pulsars Recognition
International Journal of Aerospace Engineering, 2016 Recognition for X-ray pulsars is important for the problem of spacecraft’s attitude determination by X-ray Pulsar Navigation (XPNAV). By using the nonhomogeneous Poisson model of the received photons and the minimum recognition error criterion, a ...
Hao Liang, Yafeng Zhan, Chaowei Duan
doaj +1 more source
Shedding new light on the Crab with polarized X-rays
Scientific Reports, 2017 Strong magnetic fields, synchrotron emission, and Compton scattering are omnipresent in compact celestial X-ray sources. Emissions in the X-ray energy band are consequently expected to be linearly polarized. X-ray polarimetry provides a unique diagnostic
M. Chauvin +15 more
doaj +1 more source
The Polarized Cosmic Hand: IXPE Observations of PSR B1509−58/MSH 15−52
The Astrophysical Journal, 2023 We describe IXPE polarization observations of the pulsar wind nebula (PWN) MSH 15−5 ^2 , the “Cosmic Hand.” We find X-ray polarization across the PWN, with B -field vectors generally aligned with filamentary X-ray structures.
Roger W. Romani +102 more
doaj +1 more source
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
Characterization of the optical and X-ray properties of the northwestern wisps in the Crab Nebula [PDF]
, 2013 We have studied the wisps to the north-west of the Crab pulsar as part of a multi-wavelength campaign in the visible and in X-rays. Optical observations were obtained using the Nordic Optical Telescope in La Palma and X-ray observations were made with ...
Bucciantini, Niccolo +6 more
core +3 more sources
Multi-Wavelength Properties of the 2021 Periastron Passage of PSR B1259-63
Universe, 2021 PSR B1259-63 is a gamma-ray binary system hosting a radio pulsar orbiting around a O9.5Ve star, LS 2883, with a period of ∼3.4 years. The interaction of the pulsar wind with the LS 2883 outflow leads to unpulsed broadband emission in the radio, X-ray ...
Maria Chernyakova +11 more
doaj +1 more source