The evolution of a single and a binary helium star of 2.5 solar masses up to neon ignition

Details The evolution of a single and a binary helium star of 2.5 solar masses up to neon ignition The evolution of a single and a binary helium star of 2.5 solar masses up to neon ignition

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...165...95h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 165, no. 1-2, Sept. 1986, p. 95-109.

Astronomy and Astrophysics

Astrophysics

38

Main Sequence Stars, Stellar Evolution, Symbiotic Stars, X Ray Binaries, Helium, Neon, Schwarzschild Metric, Stellar Orbits, Stellar Structure, Supernovae

Scientific paper

The evolution of a single helium star of 2.5 M_sun; (Z = 0.03) is calculated from the helium zero age main sequence up to off-centre neon ignition. A mass-exchange phase to a 17 M_sun; hydrogen star companion and the subsequent evolution up to neon ignition of the 2.2 M_sun; mass-exchange remnant are calculated. The single and binary helium stars are both expected to terminate life as a neutron star. The orbital dimensions of the binary system after a symmetric SN explosion of the helium star are calculated. These dimensions appear to resemble those of low-orbital-eccentricity B-emission (Be)/X-ray binaries.

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