scholarly journals Diagnostic Signatures of Radio and Hard X‐Ray Emission on Particle Acceleration Processes in the Coma Cluster

2003 ◽  
Vol 594 (2) ◽  
pp. 732-740 ◽  
Author(s):  
Ping‐Hung Kuo ◽  
Chorng‐Yuan Hwang ◽  
Wing‐Huen Ip
Keyword(s):  
Particle Acceleration ◽  
Coma Cluster ◽  
X Ray

scholarly journals X-ray observations of a subhalo associated with the NGC 4839 group infalling toward the Coma cluster

2016 ◽  
Vol 68 (5) ◽  
pp. 85 ◽  
Author(s):  
Toru Sasaki ◽  
Kyoko Matsushita ◽  
Kosuke Sato ◽  
Nobuhiro Okabe
Keyword(s):  
Coma Cluster ◽  
X Ray

80 MHz Survey of Extra-Galactic X-ray Sources

1979 ◽  
Vol 3 (5) ◽  
pp. 332-341 ◽  
Author(s):  
O. B. Slee ◽  
P. J. Quinn
Keyword(s):  
Angular Size ◽  
Virgo Cluster ◽  
Relativistic Electrons ◽  
Clusters Of Galaxies ◽  
Coma Cluster ◽  
Microwave Background ◽  
Significant Information ◽  
X Ray ◽  
Inverse Compton Scattering ◽  
Bremsstrahlung Emission

The completion of the Uhuru (Forman et al. 1978) and Ariel V (Cooke et al. 1978) surveys of the sky for X-ray emission has resulted in many proposed identifications with individual galaxies and clusters of galaxies. The X-ray positions are not usually accurate enough to enable a positive identification to be made of the X-ray sources with optical or radio objects, and hence the identification is often based on statistical arguments — viz., the unexpected occurrence of unusual galaxies, radio sources or clusters of galaxies within or near the X-ray error boxes. There is usually no significant information available on the angular size of the X-ray emitter but in two or three cases (e.g. Perseus cluster, Coma cluster and Virgo cluster) the angular resolution is good enough to identify a broad component with dimensions approaching those of the whole cluster. This extended X-ray emission has been ascribed to either inverse Compton scattering of the 3° microwave background by relativistic electrons in the intra-cluster medium or to thermal-bremsstrahlung emission by an optically thin plasma at - 10s K.

scholarly journals HIGH-ENERGY X-RAY IMAGING OF THE PULSAR WIND NEBULA MSH 15–52: CONSTRAINTS ON PARTICLE ACCELERATION AND TRANSPORT

2014 ◽  
Vol 793 (2) ◽  
pp. 90 ◽  
Author(s):  
Hongjun An ◽  
Kristin K. Madsen ◽  
Stephen P. Reynolds ◽  
Victoria M. Kaspi ◽  
Fiona A. Harrison ◽  
...  
Keyword(s):  
Particle Acceleration ◽  
High Energy ◽  
X Ray ◽  
X Ray Imaging ◽  
Pulsar Wind

Simultaneous study of optical and X-ray properties of the Coma Cluster by multi-mass models

1984 ◽  
Vol 280 ◽  
pp. 15 ◽  
Author(s):  
G. Des Forets ◽  
R. Dominguez-Tenreiro ◽  
D. Gerbal ◽  
G. Mathez ◽  
A. Mazure ◽  
...  
Keyword(s):  
Coma Cluster ◽  
X Ray ◽  
Simultaneous Study

Observations of Energetic Electrons in Solar Flares

1990 ◽  
Vol 142 ◽  
pp. 438-438
Author(s):  
B. Lokanadham
Keyword(s):  
Particle Acceleration ◽  
Energy Release ◽  
Observational Data ◽  
Solar Flares ◽  
Energetic Electrons ◽  
X Ray

A study of the simultaneous observations of solar flares in optical, radio and X-ray bands is important in understanding the process of energy release and particle acceleration in the explosive phenomena of solar flares. In order to determine the characteristics of such energetic electrons in solar flares, a total number of 50 two-ribbon flares have been carefully selected during the period 1979-89 having simultaneous observational data in the optical, X-ray and radio bands.

Hard X-ray Emission and Efficient Particle Acceleration by Supernova Remnants

2009 ◽  
Author(s):  
Jacco Vink ◽  
Jéro^me Rodriguez ◽  
Phillippe Ferrando
Keyword(s):  
Particle Acceleration ◽  
Supernova Remnants ◽  
X Ray

Sky survey of high-energy cosmic X-rays and spectral information on sources in the Crab nebula, Cygnus, and Scorpius

1968 ◽  
Vol 46 (10) ◽  
pp. S409-S413 ◽  
Author(s):  
Walter H. G. Lewin ◽  
George W. Clark ◽  
William B. Smith
Keyword(s):  
Crab Nebula ◽  
High Energy ◽  
X Rays ◽  
Coma Cluster ◽  
X Ray ◽  
Sky Survey ◽  
Upper Limits ◽  
Intensity Ratios ◽  
The Crab Nebula ◽  
Made In

A complete X-ray survey of the northern sky has been made in the energy range 20–100 keV. Spectra are given for Cyg X-1 and Tau X-1. Intensity ratios (Cyg X-1/Tau X-1) of 0.84 ± 0.10 and 1.30 ± 0.25 were derived in the 20–70 keV range from data obtained on July 19, 1966 and February 13, 1967, respectively. Observations on Sco X-1 and the Coma cluster show upper limits which are quite different from results reported by other groups.

scholarly journals X‐Ray Observations of the Coma Cluster in a Broad Energy Band with theINTEGRAL,RXTE, andROSATObservatories

2008 ◽  
Vol 687 (2) ◽  
pp. 968-975 ◽  
Author(s):  
A. A. Lutovinov ◽  
A. Vikhlinin ◽  
E. M. Churazov ◽  
M. G. Revnivtsev ◽  
R. A. Sunyaev
Keyword(s):  
Energy Band ◽  
Coma Cluster ◽  
X Ray ◽  
Broad Energy
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