Accretion disk eruptions in the FU Orionis variable stars

Details Accretion disk eruptions in the FU Orionis variable stars Accretion disk eruptions in the FU Orionis variable stars

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..522..411k&link_type=abstract

COSMIC EXPLOSIONS: Tenth Astrophysics Conference. AIP Conference Proceedings, Volume 522, pp. 411-420 (2000).

Astronomy and Astrophysics

Astrophysics

Flare Stars, Accretion And Accretion Disks, Pre-Main Sequence Objects, Young Stellar Objects And Protostars

Scientific paper

The pre-main sequence FU Orionis variables undergo 3-6 mag outbursts lasting from decades to centuries. The outbursts occur in a large, self-luminous accretion disk surrounding a young star with an age of 1-10×105 yr. Models of thermally unstable disks generally account for the scale and duration of the outburst. The accretion rate through the disk is large enough to add ~1% of a solar mass to the central star in each outburst. Repetitive eruptions could add >~20% of a solar mass to each pre-main sequence star in the solar neighborhood. .

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