TYPING SUPERNOVA REMNANTS USING X-RAY LINE EMISSION MORPHOLOGIES
نویسندگان
چکیده
منابع مشابه
X-ray synchrotron emission from supernova remnants
X-ray synchrotron emission tells us of the highest energy reached by accelerated electrons. In a few supernova remnants (SN 1006, G347.3−0.5) this is the dominant form of X-ray radiation, but in most it is superposed to the dominant thermal emission. Thanks to the spectro-imaging capability of Chandra and XMM-Newton, X-ray synchrotron emission has now been unambiguously detected in most young s...
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Recent studies of narrow, X-ray synchrotron radiating filaments surrounding young supernova remnants indicate that magnetic fields strengths are relatively high, B ∼ 0.1 mG, or even higher, and that diffusion is close to the Bohm limit. I illustrate this using Cas A as an example. Also older remnants such as RCW 86 appear to emit X-ray synchrotron radiation, but the emission is more diffuse, an...
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This paper provides detailed descriptions of the X-ray emission from supernova remnants evolving in warm, low density, nonthermal pressure dominated regions (To = 10 4 K, n = 0.001 cm, Pnt = 1800 or 7200 K cm ). Non-equilibrium ionization hydrocode simulations are used to predict the high resolution spectra, 1/4 and 3/4 keV ROSAT PSPC countrates, spatial appearance, color temperatures, and rati...
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This brief review of recent X-ray observations of young supernova remnants highlights results obtained by the Chandra and XMM Newton Observatories since their launch last year. Their impressive capabilities are illustrated by results for spectral imaging, and for spatially resolved spectroscopy that isolates emission from individual ejecta knots and from the forward shock. I also review X-ray d...
متن کاملSupernova remnants: the X-ray perspective
Supernova remnants are beautiful astronomical objects that are also of high scientific interest, because they provide insights into supernova explosion mechanisms, and because they are the likely sources of Galactic cosmic rays. X-ray observations are an important means to study these objects. And in particular the advances made in X-ray imaging spectroscopy over the last two decades has greatl...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2009
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/706/1/l106