Are some of the luminous high-latitude stars accretion-powered runaways?
- Los Alamos National Lab., NM (United States)
- Jet Propulsion Lab., Pasadena, CA (United States)
It is well known that (1) runaway stars can be produced via supernova explosions in close binary systems, (2) most of such runaways should possess neutron star companions, and (3) neutron stars receive randomly oriented kicks of {approx_equal} 100 to 200 km s{sup {minus}1} at birth. We find that this kick sometimes has the right amplitude and direction to make the neutron star fall into the runaway. Accretion onto a neutron star is a source of energy that is roughly an order of magnitude more mass efficient than nuclear burning. Thus, runaways containing neutron stars may live much longer than would normally be expected, which would allow them to travel great distances from their birthplaces during their lifetimes. Some of the early B-type stars far from the Galactic plane and the high-latitude F and G-type supergiants may be accretion-powered runaway stars.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10170426
- Report Number(s):
- LA-UR-92-2138; CONF-9205226-3; ON: DE92018853
- Resource Relation:
- Conference: Conference on luminous high-latitude stars,Boston, MA (United States),28-30 May 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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