Energy deposition and K-shell ionization of supernovae

Details Energy deposition and K-shell ionization of supernovae Energy deposition and K-shell ionization of supernovae

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...93..531t&link_type=abstract

The Astrophysical Journal: Supplement Series, vol. 93, no. 2, p. 531-548

Astronomy and Astrophysics

Astronomy

8

Compton Effect, Gamma Ray Astronomy, Gamma Ray Spectra, Gamma Rays, Photoabsorption, Supernova 1987A, X Ray Astronomy, X Ray Spectra, Bolometers, Bremsstrahlung, Emission Spectra, Monte Carlo Method, Radial Distribution, Stellar Luminosity, Stellar Spectra

Scientific paper

We present explicit evaluation of K-shell ionization caused by photoelectric absorption, by Compton scattering, and by electron collisions in supernovae envelopes. Each process derives from the radioactivity that dominates the bolometric luminosity of the model supernovae. We include the ionization by bremsstrahlung. We find that electron-collision ionization with decelerating Compton electrons is the dominant process of K-shell ionization for light elements (lighter than Si) whereas photoelectric K-shell absorption of Comptonized gammas is the dominant process of K-shell ionization for heavy elements (like Fe). The relative importance of the ionization processes also depends upon composition and upon time, as well as upon supernova type. For Type Ia all four ionization sources are of importance. We present fitting formulas for the deposition of radioactive power in each class of models studied. The energy deposition of all mechanisms decreases with time, including the rate of K-shell ionizations of all elements throughout the supernovae model evaluated herein. We compare the relative contributions to the energy deposition and confirm with greater numerical detail results already established.

Affiliated with

Also associated with

No associations

Rating

Energy deposition and K-shell ionization of supernovae 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 Energy deposition and K-shell ionization of supernovae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy deposition and K-shell ionization of supernovae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1494737