Results 21 to 30 of about 120,893 (256)
Galactic Shapiro delay to the Crab pulsar and limit on weak equivalence principle violation [PDF]
European Physical Journal C: Particles and Fields, 2018 We calculate the total galactic Shapiro delay to the Crab pulsar by including the contributions from the dark matter as well as baryonic matter along the line of sight. The total delay due to dark matter potential is about 3.4 days.
Shantanu Desai, Emre Kahya
doaj +2 more sources
Glitches and pinned vorticity in the Crab pulsar. [PDF]
Proc Natl Acad Sci U S A, 1981 We suggest that the glitch behavior observed in the Crab pulsar is associated with vorticity jumps induced by a starquake or a comparable external fluctuation in the weakly pinned vortex region expected in the crust of a young neutron star, and that the differences in the glitch behavior of the Crab, Vela, and older pulsars may be explained on ...
Alpar MA +3 more
europepmc +5 more sources
A non-glitch speed-up event in the Crab Pulsar [PDF]
A&A 597, L9 (2017), 2016 Context: The rotation history of the Crab Pulsar is well described by (1) a rotation frequency $\nu$ and a slowdown model that is specified by its first two time derivatives $\dot \nu$ and $\ddot \nu$, known as the secular slowdown model, (2) occasional (once in $\approx 2$ years) significant and abrupt increases in the magnitude of $\nu$ and $\dot \nu$
M. Vivekanand
arxiv +3 more sources
45 years of rotation of the Crab pulsar [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 The 30-Hz rotation rate of the Crab pulsar has been monitored at Jodrell Bank Observatory since 1984 and by other observatories before then. Since 1968, the rotation rate has decreased by about $0.5$\,Hz, interrupted only by sporadic and small spin up events (glitches).
Lyne, A. G. +5 more
openaire +7 more sources
On the Mystery of the Interpulse Shift in the Crab Pulsar [PDF]
Journal of Physical Science and Application, 2017 15 pages, 8 figures; comparing to version 1, the abstract and the list of references are slightly modified, as well as the references in the captions of Fig.3,4,6 and denominations in formulae (12-14); the paper is accepted for publication in JPSA, Vol.7, no.
S.V. Trofymenko, Victor M. Kontorovich
openaire +5 more sources
Parametrization of Crab pulsar spectrum [PDF]
arXiv, 2012 CRAB pulsar data has been parameterized by using exponential function or broken exponential function. we use non extensive form of exponential function to parameterize this data.
arxiv +3 more sources
A glitch in the Crab Pulsar [PDF]
Monthly Notices of the Royal Astronomical Society, 1987 A. G. Lyne, Robert S. Pritchard
openalex +3 more sources
Generation of nanoflares in the Crab pulsar [PDF]
arXiv, 2017 We study dynamics of drift waves in the pair plasma of pulsar magnetosphere. It is shown that nonlinear of the drift waves with plasma particles leads to the formation of small scale structures. We show that cyclotron instability developed within these nonlinear structures can be responsible for the formation of nanoshots discovered in the radio ...
Machabeli, G. +2 more
arxiv +3 more sources
Simultaneous space and phase resolved X-ray polarimetry of the Crab pulsar and nebula [PDF]
Nature Astronomy, 2022 X-ray polarization measurements of the Crab nebula and pulsar by the IXPE satellite reveal a global toroidal magnetic field with large variations in local polarization, suggesting a more complex turbulence distribution than anticipated.
N. Bucciantini +100 more
semanticscholar +1 more source
Ultra-high-energy Gamma-Ray Radiation from the Crab Pulsar Wind Nebula [PDF]
Astrophysical Journal, 2022 It has been long debated whether the high-energy gamma-ray radiation from the Crab Nebula stems from leptonic or hadronic processes. In this work, we investigate the multiband nonthermal radiation from the Crab pulsar wind nebula with the leptonic and ...
Lin Nie, Yang Liu, Zejun Jiang, X. Geng
semanticscholar +1 more source