Other
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.7008m&link_type=abstract
American Astronomical Society, 181st AAS Meeting, #70.08; Bulletin of the American Astronomical Society, Vol. 24, p.1233
Other
Scientific paper
Recent developments in the theoretical understanding of an isolated Type I supernova remnant (SNR) in a magnetized medium and observations of nearby spiral galaxies at X-ray and EUV wavelengths stress the importance of investigating how SNRs radiate their energy as a function of both time and wavelength over the course of their existence. The addition of interstellar magnetic fields to remnant models has drastically altered our view of how SNRs evolve, in the process changing the expected radiative history and properties of these events. Previous upper limits to the X-ray surface brightness of nearby spiral galaxies at levels below 1% of the available supernova power have now been augmented by similar limits in the EUV, suggesting that supernovae dispense of their energy in other wavelength regions or by other means (e.g. magnetic compression and rebound). As a prelude to exploring this issue in great detail, we are calculating the integrated spectrum in the X-ray, EUV, optical, IR, and radio of a typical SNR over its entire lifetime as a function of ambient gas density and ambient magnetic field strength using a one-dimensional (spherical) hydrodynamic code. The code includes the effects of electron and ion thermal conduction, dust cooling and destruction with dynamic elemental depletions, non-equilibrium ionization evolution, and radiative cooling. A non-thermal pressure term that simulates one dimensional magnetic fields is also used. The results of this work over a wide range of parameter space will be combined with estimates of the rate, space density, and lifetime of supernova remnants in selected galaxies to estimate the power contribution to the observed surface brightnesses of these galaxies from the population of SNRs. We present preliminary results of this investigation.
Cox Donald P.
Edgar Richard J.
Miller Walter Warren III
No associations
LandOfFree
The Time Integrated Spectrum of a Supernova Remnant Over Its Lifetime: Preliminary Work does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Time Integrated Spectrum of a Supernova Remnant Over Its Lifetime: Preliminary Work, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Time Integrated Spectrum of a Supernova Remnant Over Its Lifetime: Preliminary Work will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1111346