Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....91...90z&link_type=abstract
Astronomy and Astrophysics, vol. 91, no. 1-2, Nov. 1980, p. 90-96.
Astronomy and Astrophysics
Astrophysics
2
Infrared Stars, Magnetohydrodynamic Waves, Quasars, Space Plasmas, Stellar Coronas, Stellar Models, Cyclotron Radiation, Plasma Dynamics, Stellar Magnetic Fields, Stellar Radiation, Stellar Spectra, Stellar Temperature
Scientific paper
The idea that Alfven waves transport the needed energy from a powerhouse of unknown character in the core of the quasar nucleus to the outer radiating shell or corona is analyzed. It is found that this Alfven-driven mechanism can only then deliver adequate power to the corona when the magnetic field in the vicinity of the core, where the Alfven wave is generated by movements of magnetized matter, has a strength of the order of megagauss. Strongly self-absorbed cyclotron radiation emitted by the plasma under these conditions is able to account for the observed predominance of nonthermal infrared in the spectrum of the typical quasar. Only when the density of the corona is sufficiently high (electron density greater than 10 to the 10th/cu cm) can one expect detectable emission of free-free X-rays.
No associations
LandOfFree
Alfven-driven cyclotron corona as a model for quasar infrared 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 Alfven-driven cyclotron corona as a model for quasar infrared, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alfven-driven cyclotron corona as a model for quasar infrared will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1389633