Superhumps in accretion disks

Details Superhumps in accretion disks Superhumps in accretion disks

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296..127w&link_type=abstract

In ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 1: X Ray Binaries p 127-128 (SEE N90-25711 19-89)

Astronomy and Astrophysics

Astronomy

2

Accretion Disks, Dwarf Novae, Orbital Resonances (Celestial Mechanics), Stellar Orbits, Bursts, Mass Distribution, Resonant Frequencies, Stellar Flares, Stellar Mass Accretion

Scientific paper

The investigation shows that the superhumps observed in superoutbursts of SU UMa dwarf novae probably result from the excitation of a resonance in the accretion disk near the 3:1 commensurability with the binary orbit. This resonance can only appear for mass ratios M1/M2 less than 0.25 to 0.33. For larger mass ratios the available resonances are probably too weak to have observable effects. The 2:1 resonance may appear with ultrashort periods.

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