Results 91 to 100 of about 108,919 (255)
A New Fast Silicon Photomultiplier Photometer
Acta Polytechnica, 2011 The Crab pulsar is one of the most intensively studied X-ray/optical objects, but up to now only a small number of research groups have based their photometers on SiPM technology.
F. Meddi +8 more
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Anticorrelation Between Flux and Photon Index of Hard-X-Ray Emission from the Crab
The Astrophysical JournalUsing Swift Burst Alert Telescope event-mode data during gamma-ray burst occurrences, we conduct spectral analysis for the Crab system. From 38 good observations, which span a period of 18 yr from 2006 to 2023, we find that the Crab’s X-ray flux not only
Koothodil Abhijith Augustine +1 more
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Applied SciencesPulsars 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
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Testing Einstein's weak equivalence principle with a 0.4-nanosecond giant pulse of the Crab pulsar [PDF]
, 2016 Einstein's weak equivalence principle (EEP) can be tested through the arrival time delay between photons with different frequencies. Assuming that the arrival time delay is solely caused by the gravitational potential of the Milky Way, we show that a ...
Yuanpei Yang, Bing Zhang
semanticscholar +1 more source
PeV Emission of the Crab Nebula: Constraints on the Proton Content in Pulsar Wind and Implications [PDF]
, 2021 Ruo-Yu Liu, Xiang‐Yu Wang
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Search for a Correlation Between Radio Giant Pulses and VHE Photons of the Crab Pulsar
Acta Polytechnica, 2011 The Crab pulsar is a unique source of pulsar radio emission. Its regular pulse structure is visible over the entire electromagnetic spectrum from radio to GeV ranges.
N. Lewandowska +2 more
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A Statistical Analysis of Crab Pulsar Giant Pulse Rates
The Astrophysical JournalA small number of pulsars are known to emit giant pulses (GPs), single pulses much brighter than average. Among these is PSR J0534+2200, also known as the Crab pulsar, a young pulsar with high GP rates. Long-term monitoring of the Crab pulsar presents an
Graham M. Doskoch +20 more
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EVOLUTION OF THE X-RAY PROFILE OF THE CRAB PULSAR [PDF]
, 2016 Using the archival data from the Rossi X-ray Timing Explorer, we study the evolution of the Crab pulsar’s X-ray profile in a time span of 11 years. The X-ray profiles, as characterized by a few parameters, changed slightly, but with high statistical ...
M. Ge +7 more
semanticscholar +1 more source
High-sensitivity Beamformed Observations of the Crab Pulsar's Radio Emission
The Astrophysical Journal, 2023 We analyzed four epochs of beamformed European VLBI Network data of the Crab Pulsar at 1658.49 MHz. With the high sensitivity resulting from resolving out the Crab Nebula, we are able to detect even the faint high-frequency components in the folded ...
Rebecca Lin, Marten H. van Kerkwijk
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The Astrophysical JournalThe supernova remnant (SNR) 0540–69.3, twin of the Crab Nebula, offers an excellent opportunity to study the continuum emission from a young pulsar and pulsar wind nebula (PWN). We present observations taken with the Very Large Telescope instruments MUSE
L. Tenhu +6 more
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