Results 121 to 130 of about 120,893 (256)
I. Inverse Compton origin of pulsar γ-ray emission. II. Reconnection model of Crab flares [PDF]
, 2013 I. There is growing evidence that pulsars' high energy emission is generated via Inverse Compton mechanism. II. The particles producing Crab flares, and possibly most of the Crab Nebula's high energy emission, are accelerated via reconnection events, and not at shock via Fermi mechanisms.
arxiv +1 more source
On the role of rotation in the outflows of the Crab pulsar [PDF]
International Journal of Modern Physics D, 2015 In order to study constraints imposed on kinematics of the Crab pulsar's jet, we consider motion of particles along co-rotating field lines in the magnetosphere of the Crab pulsar. It is shown that particles following the co-rotating magnetic field lines may attain velocities close to observable values.
Zaza Osmanov +2 more
openaire +3 more sources
The Crab optical and ultraviolet polarimetry [PDF]
arXiv, 2009 Polarisation measurements of pulsars and of their pulsar wind nebulae (PWNe) are uniquely able to provide deep insights into the highly magnetised relativistic environment of young, rotation-powered isolated neutron stars (INSs). Besides the radio band, optical observations are primarily suited to providing such insights.
arxiv
A LOW FREQUENCY SURVEY OF GIANT PULSES FROM THE CRAB PULSAR [PDF]
, 2016 We present a large survey of giant pulses from the Crab Pulsar as observed with the first station of the Long Wavelength Array. Automated methods for detecting giant pulses at low frequencies where scattering becomes prevalent are also explored.
T. Eftekhari +4 more
semanticscholar +1 more source
X-ray pulsar in the Crab Nebula [PDF]
Symposium - International Astronomical Union, 1970 Prof. Friedman did not communicate any text or Summary of his communication.
openaire +5 more sources
The effects of magnetic field, age, and intrinsic luminosity on Crab-like pulsar wind nebulae [PDF]
, 2013 We investigate the time-dependent behavior of Crab-like pulsar wind nebulae (PWNe) generating a set of models using 4 different initial spin-down luminosities ($L_0 =\{1,0.1,0.01,0.001\} \times L_{0, {\rm Crab}}$), 8 values of magnetic fraction ($\eta =$ 0.001, 0.01, 0.03, 0.1, 0.5, 0.9, 0.99, and 0.999, i.e., from fully particle dominated to fully ...
arxiv +1 more source
Detection of bridge emission above 50 GeV from the Crab pulsar with the MAGIC telescopes [PDF]
, 2014 Context. The Crab pulsar is the only astronomical pulsed source detected at very high energy (VHE, E > 100 GeV) gamma rays. The emission mechanism of VHE pulsation is not yet fully understood, although several theoretical models have been proposed. Aims.
J. Aleksic +157 more
semanticscholar +1 more source
The Crab Nebula flaring activity
Physics Letters B, 2014 The discovery made by AGILE and Fermi of a short time scale flaring activity in the gamma-ray energy emission of the Crab Nebula is a puzzling and unexpected feature, challenging particle acceleration theory.
G. Montani, M.G. Bernardini
doaj
On the overall properties of young neutron stars: an application to the Crab pulsar
Frontiers in Astronomy and Space SciencesIn this brief report, we present a model that complements the well-established canonical model for the spin evolution of rotation-powered pulsars, which is typically used to estimate ages, spin-down luminosity, and surface magnetic fields of middle-aged ...
Cristian G. Bernal +8 more
doaj +1 more source
Curvature radiation and giant subpulses in the Crab pulsar [PDF]
arXiv, 2003 It is argued that the nanosecond giant subpulses detected recently in the Crab pulsar are generated by means of the coherent curvature radiation of charged relativistic solitons associated with sparking discharges of the inner gap potential drop above the polar cap.
arxiv