Supernova Optical Observations and Theory

AbstractWe review emission processes within the supernova (SN) ejecta. Examples of the application of the theory to observational data are presented. The emission processes and thermal condition within the SN ejecta change as a function of time, and multi-epoch observations are important to obtain comprehensive views. Through the analyses, we can constrain the progenitor radius, compositions as a function of depth, ejecta properties, explosion asymmetry and so on. Multi-frequency follow-up is also important, including radio synchrotron emissions and the inverse Compton effect, γ-ray emissions from radioactive decay of newly synthesized materials. The optical data are essential to make the best use of the multi-frequency data.

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Interpretation of flares of red dwarfs by means of the inverse compton effect

Astrophysics ◽

10.1007/bf01004374 ◽

1980 ◽

Vol 15 (3) ◽

pp. 293-300

Author(s):

G. A. Arutyunyan ◽

R. A. Krikorian ◽

A. G. Nikogosyan

Keyword(s):

Compton Effect ◽

Inverse Compton Effect ◽

Red Dwarfs ◽

Inverse Compton

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The Inverse Compton Effect in Extra-Galactic Radio Sources

Publications of the Astronomical Society of Australia ◽

10.1017/s1323358000010894 ◽

1968 ◽

Vol 1 (3) ◽

pp. 105-106

Author(s):

I. D. Johnston ◽

G. P. Rothman

Keyword(s):

Compton Effect ◽

Radio Sources ◽

Radiation Density ◽

X Ray ◽

Inverse Compton Scattering ◽

Ultrarelativistic Electron ◽

Inverse Compton Effect ◽

Inverse Compton ◽

Infra Red ◽

Galactic Radio

It was first pointed out by Hoyle et al. that quasars if they are indeed located at cosmological distances, must be characterized by an extraordinarily large radiation density : and therefore, though their optical and near infra-red spectra appear to be dominated by synchrotron radiation, any ultrarelativistic electron present must necessarily lose essentially all its energy by inverse Compton scattering. This would mean that, though quasars are emitting fantastic amounts of energy at optical frequencies, they must also be emitting many orders of magnitude more at X-ray and γ-ray frequencies. This paradox has been evaded by several specially constructed models (e.g. Rees and Sciama, Woltjer and Jukes); but the problem has not been removed in general.

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