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EPJ Web of Conferences, 2017 The last six years have witnessed major revisions of our knowledge about the Crab Pulsar. The consensus scenario for the origin of the high-energy pulsed emission has been challenged with the discovery of a very-high-energy power law tail extending up to
Zanin Roberta
doaj +6 more sources
The Radio Parallax of the Crab Pulsar: A First VLBI Measurement Calibrated with Giant Pulses [PDF]
The Astrophysical Journal, 2023 We use four observations with the European very long baseline interferometry (VLBI) network to measure the first precise radio parallax of the Crab Pulsar. We found two in-beam extragalactic sources just outside the Crab Nebula, with one bright enough to
Rebecca Lin +4 more
doaj +2 more sources
Evolution of Spin Period and Magnetic Field of the Crab Pulsar: Decay of the Braking Index by the Particle Wind Flow Torque [PDF]
Universe, 2022 The evolutions of a neutron star’s rotation and magnetic field (B-field) have remained unsolved puzzles for over half a century. We ascribe the rotational braking torques of pulsar to both components, the standard magnetic dipole radiation (MDR) and ...
Cheng-Min Zhang +10 more
doaj +2 more sources
POLAR measurements of the Crab pulsar [PDF]
Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017), 2017 POLAR is a Compton polarimeter sensitive in the 50 to 500 keV energy range. The Crab pulsar is a scientific target for POLAR on board the Chinese space laboratory Tiangong-2 (TG-2). With its large Field of View (FoV), POLAR detected significant pulsed signals from the Crab pulsar which is visible by POLAR in about half of observation time. In this work,
POLAR collaboration +3 more
semanticscholar +5 more sources
Resolving the Emission Regions of the Crab Pulsar’s Giant Pulses. II. Evidence for Relativistic Motion [PDF]
The Astrophysical Journal, 2023 The Crab Pulsar is the prime example of an emitter of giant pulses. These short, very bright pulses are thought to originate near the light cylinder, at ∼1600 km from the pulsar.
Rebecca Lin +5 more
doaj +2 more sources
The Crab Pulsar and Nebula as Seen in Gamma-Rays [PDF]
Universe, 2021 Slightly more than 30 years ago, Whipple detection of the Crab Nebula was the start of Very High Energy gamma-ray astronomy. Since then, gamma-ray observations of this source have continued to provide new surprises and challenges to theories, with the ...
Elena Amato, Barbara Olmi
doaj +2 more sources
Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar [PDF]
Science, 2021 X-rays from giant radio pulses Pulsars are spinning, magnetized neutron stars that are observed as a regular sequence of radio pulses. Most pulses are of consistent intensity, but occasionally one is brighter by orders of magnitude.
T. Enoto +36 more
semanticscholar +3 more sources
Two-dimensional positioning of the crab pulsar with avoidance of non-sensitive direction [PDF]
Scientific ReportsIn the surrounding orbits, the position error of the spacecraft causes the distortion of the accumulative pulsar profile. Through theoretical analysis, a non-sensitive direction exists in three-dimensional space.
Jianfeng Chen +4 more
doaj +2 more sources
Pulsar Emissions, Signal Modeling and Passive ISAR Imaging [PDF]
Sensors, 2019 The present work addresses pulsar Crab Nebula emissions from point of view of their modeling and applications for asteroid detection and imaging by applying inverse synthetic aperture radar (ISAR) principles.
Andon Lazarov
doaj +2 more sources
Parametrization of Crab pulsar spectrum [PDF]
, 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.
Ashok Razdan
openaire +3 more sources