Results 61 to 70 of about 15,098 (205)

BatAnalysis: A Comprehensive Python Pipeline for Swift BAT Survey Analysis

The Astrophysical Journal, 2023
The Swift Burst Alert Telescope (BAT) is a coded-aperture gamma-ray instrument with a large field of view that primarily operates in survey mode when it is not triggering on transient events.
Tyler Parsotan, Sibasish Laha, David M. Palmer, Amy Lien, S. Bradley Cenko, Hans Krimm, Craig Markwardt   +6 more
doaj   +1 more source

Spectroscopy and 3D imaging of the Crab nebula

, 2004
Spectroscopy of the Crab nebula along different slit directions reveals the 3 dimensional structure of the optical nebula. On the basis of the linear radial expansion result first discovered by Trimble (1968), we make a 3D model of the optical emission ...
Alberto Carraminana, Andrej Čadež, Caraveo P. A., Clark D. H., Simon Vidrih, Velusamy T., Veron-Cetty M. P., Wyckoff S.   +7 more
core   +1 more source

Generation of Cosmic rays in Historical Supernova Remnants

EPJ Web of Conferences, 2013
We present the results of observations of two types of Galactic supernova remnants with the SHALON mirror Cherenkov telescope of Tien-Shan high-mountain Observatory: the shell-type supernova remnants Tycho, Cas A and IC 443; plerions Crab Nebula, 3c58 ...
Sinitsyna V.Y., Sinitsyna V.G.
doaj   +1 more source

Multidimensional relativistic MHD simulations of Pulsar Wind Nebulae: dynamics and emission

, 2017
Pulsar Wind Nebulae, and the Crab nebula in particular, are the best cosmic laboratories to investigate the dynamics of magnetized relativistic outflows and particle acceleration up to PeV energies.
A.M. Atoyan, B. Cerutti, B. Vaidya, C.F. Kennel, E. Swaluw van der, F. Pacini, F. Pacini, F. Pacini, F.C. Michel, F.V. Coroniti, G.B. Rybicki, J.D. Scargle, J.J. Hester, J.J. Hester, M.C. Begelman, M.J. Rees, N. Bucciantini, O.C. Jager de, S.P. Reynolds, S.S. Komissarov, S.S. Komissarov, T. Gold, Y.E. Lyubarsky   +22 more
core   +1 more source

MAGIC highlights

EPJ Web of Conferences, 2016
The present generation of Imaging Air Cherenkov Telescopes (IACTs) has greatly improved our knowledge on the Very High Energy (VHE) side of our Universe. The MAGIC IACTs operate since 2004 with one telescope and since 2009 as a two telescope stereoscopic
López-Coto Rubén
doaj   +1 more source

Impact of H.E.S.S. Lidar profiles on Crab Nebula data

EPJ Web of Conferences, 2019
The H.E.S.S. experiment in Namibia is a high-energy gamma-ray telescope sensitive in the energy range from 30 GeV to a several tens of TeV, that uses the atmospheric Cherenkov technique to detect showers developed within the atmosphere. The elastic lidar,
Devin Justine, Bregeon Johan, Vasileiadis Georges, Gallant Yves   +3 more
doaj   +1 more source

Small scale turbulence in the Crab Nebula: Evidence of lower hybrid parametric instabilities driven by the pulsar wave [PDF]

Strong small scale turbulence is observed in the Crab Nebula from the temporal pulse broadening data. It is shown that the strong 30 Hz pulsar wave can parametrically excite instabilities near the lower hybrid frequency in the thermal plasma of the Crab ...
Lee, L. C.
core   +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
openalex   +1 more source

Chandra Phase-Resolved Spectroscopy of the Crab Pulsar

, 2003
We present the first phase-resolved study of the X-ray spectral properties of the Crab Pulsar that covers all pulse phases. The superb angular resolution of the Chandra X-ray Observatory enables distinguishing the pulsar from the surrounding nebulosity ...
Allyn F. Tennant, Band I. M., Douglas A. Swartz, Frits Paerels, Keenan F. P., Lyne A. G., Martin C. Weisskopf, Massaro E., Pavlov G. G., Predehl P., Ronald F. Elsner, Stephen L. O’Dell, Verner D. A., Werner Becker, Zavlin V. E.   +14 more
core   +1 more source

Spatially Resolved Polarization Variation of the Crab Nebula

The Astrophysical Journal
We examined the spatially resolved polarization variations in the Crab Nebula over 2 yr, using observational data from the Imaging X-ray Polarimetry Explorer, and offer key insights into its magnetic field structures and evolution.
Chao Zuo, Fei Xie, Mingyu Ge, Wei Deng, Kuan Liu, Fabio La Monaca, Alessandro Di Marco, Wenhao Wei, Wei Chen   +8 more
doaj   +1 more source