Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...19310103m&link_type=abstract
American Astronomical Society, 193rd AAS Meeting, #101.03; Bulletin of the American Astronomical Society, Vol. 30, p.1399
Astronomy and Astrophysics
Astronomy
Scientific paper
In previous work we have shown that irradiation driven mass transfer cycles can occur in cataclysmic variables at all orbital periods if an additional angular momentum loss mechanism is assumed. Earlier models simply postulated that the enhanced angular momentum loss was proportional to the mass transfer rate without any specific physical model. In this paper we present a simple modification of magnetic braking which seems to have the right properties to sustain irradiation driven cycles at all orbital periods. We assume that the wind mass loss from the irradiated companion consists of two parts: an intrinsic stellar wind term plus an enhancement that is proportional to the irradiation. The increase in mass flow reduces the specific angular momentum carried away by the flow but nevertheless yields an enhanced rate of magnetic braking. The secular evolution of the binary is then computed numerically with a suitably modified double polytropic code (McCormick & Frank 1998). With the above model and under certain conditions, mass transfer oscillations occur at all orbital periods.
Frank Jacki
McCormick Patrick Joseph
No associations
LandOfFree
Irradiation and Enhanced Magnetic Braking in Cataclysmic Variables 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 Irradiation and Enhanced Magnetic Braking in Cataclysmic Variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Irradiation and Enhanced Magnetic Braking in Cataclysmic Variables will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-997497