Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.2401m&link_type=abstract
American Astronomical Society, DPS meeting #42, #24.01; Bulletin of the American Astronomical Society, Vol. 42, p.957
Astronomy and Astrophysics
Astronomy
Scientific paper
We simulate the evolution of the circumstellar and circumbinary disks in a system configured to appear similar to that observed for the GG Tau A binary. We find that mass transfer onto the circumstellar disks is episodic with maximal transfer rates which change from orbit to orbit, but which occur following each apoapse passage. Accretion rates onto the stars themselves does not display such periodicities, so the disk masses vary somewhat over the binary orbit. Averaged over time, mass transfer into and out of the disks equilibrates at a disk mass of somewhat less than one Jupiter mass, for both the primary and secondary. The transfer rate of material through the disks is rapid enough to effectively replace the entire disk in less than 10000 yr. We discuss the implications of our results on planet formation in this and similar systems.
This is Los Alamos Publication LA-UR 10-04813
Marzari Francesco
Nelson Andrew F.
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