'High entropy' accretion onto the surface of a white dwarf

Details 'High entropy' accretion onto the surface of a white dwarf 'High entropy' accretion onto the surface of a white dwarf

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..80..281g&link_type=abstract

Astrophysics and Space Science, vol. 80, no. 2, Dec. 1981, p. 281-287.

Astronomy and Astrophysics

Astrophysics

1

Entropy, Hydrogen, Stellar Evolution, Stellar Mass Accretion, White Dwarf Stars, Stellar Envelopes, Stellar Gravitation, Thermal Instability

Scientific paper

The paper investigates the accretion of hydrogen rich matter onto the surface of a white dwarf. The possible influence of residual gravitational falling energy excess on the hydrogen ignition process and the outburst that follows is estimated. Calculations are carried out for accretion rates of 10 to the 18th g/s and 10 to the 19 g/s, and in all models the hydrogen ignition is at the base of the accreted layer and is followed by a thermal instability. Results include a diminution of the accumulated envelope needed for the onset of thermal instability, and a milder thermal pulse following the ignition. The radius of the helium hydrogen interface is not affected by the additional accreted matter, and the accreted envelope is compact even in cases where it has a relatively high entropy.

Affiliated with

Also associated with

No associations

Rating

'High entropy' accretion onto the surface of a white dwarf 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 'High entropy' accretion onto the surface of a white dwarf, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 'High entropy' accretion onto the surface of a white dwarf will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1260509