Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.5008b&link_type=abstract
American Astronomical Society, 181st AAS Meeting, #50.08; Bulletin of the American Astronomical Society, Vol. 24, p.1204
Astronomy and Astrophysics
Astronomy
Scientific paper
A massive star with a degenerate neutron core would be a red supergiant with the following peculiar features: The star is convective from near the photosphere down to the base of the envelope just outside the degenerate core (radius 10 km). The star's luminosity comes from the rp-process in a convective burning region within 100 km of the base of the envelope. The convection brings fuel for the rp-process into the burning region from throughout the envelope and deposits the products of rp-burning back into the envelope, including the photosphere. After about 10(5) years, the abundances of Mo, Ru, Rh, Pd, and Ag at the surface of the star will be about 1000 times greater than their solar abundances. A suitable observational signature would be the strong enhancement of absorption lines for these elements in the star's spectrum. As many as 10 of the nearest 400 red supergiant's (those within 5 kpc) could have neutron cores. This research was funded in part by NSF grants AST-8817792 and AST-9114925.
No associations
LandOfFree
Observational Prospects for Stars with Degenerate Neutron Cores 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 Observational Prospects for Stars with Degenerate Neutron Cores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observational Prospects for Stars with Degenerate Neutron Cores will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1111040