Models for highly flattened, rapidly rotating cool stars in a Newtonian approximation

Details Models for highly flattened, rapidly rotating cool stars in a Newtonian approximation Models for highly flattened, rapidly rotating cool stars in a Newtonian approximation

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001arep...45..692s&link_type=abstract

Astronomy Reports, vol. 45, Issue 9, p.692-699

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We investigate the physical characteristics of single, rapidly rotating white dwarfs, which could form as a result of a merger of two white dwarfs with different masses and filled Roche lobes, due to the radiation of gravitational waves. When the merging of the binary components occurs without loss of mass and angular momentum, the merger products are subject to secular instability, and the density in their cores does not exceed ˜108 g/cm3. Models are constructed for rapidly rotating neutron stars, which could form after the collapse of rotating iron cores of evolved massive stars. Dynamically unstable neutron-star models are characterized by a shift of the maximum density from the rotational axis. The total momentum of such neutron stars is about half the maximum possible momentum for the evolved cores of massive stars.

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