Weakly Mass-Loaded Accretion Discs

Details Weakly Mass-Loaded Accretion Discs Weakly Mass-Loaded Accretion Discs

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26at...22...81s&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 22, Issue 1, p.81-93

Astronomy and Astrophysics

Astrophysics

Scientific paper

Accretion discs with an additional mass input on the disc surface from the environment are considered in the limit of a low mass input rate, when the accretion flow remains Keplerian. Owing to dissipation of kinetic energy of the infalling gas, the disc temperature increases and can deviate significantly from standard temperature of reprocessing accretion discs in their outer regions. This increase in temperature produces an excess of emission in a long-wavelength range of the disc spectrum. An illustrative example of the spectrum of a weakly mass-loaded disc (the surface mass input rate dot{M}_load≈ 1.5× 10(-8}M_{&sun;} year({-1)) ) reasonably reproducing the far-infrared excess observed in CS Chameleon is given.

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