Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.157...31b&link_type=abstract
(Instituto de Astrofisica de Canarias and Comision Interministerial de Ciencia y Tecnologia, Summer School on Evolutionary Pheno
Astronomy and Astrophysics
Astrophysics
Helium, Horizontal Branch Stars, Nuclear Astrophysics, Stellar Evolution, Stellar Spectrophotometry
Scientific paper
In view of Population II star spectroscopic analyses indicating an overabundance of such alpha-elements as O with respect to Fe, new opacities have been computed for these stars. A grid of evolutionary sequences of He-burning models for low-mass stars is obtained which covers the He-burning phase from the Zero-Age Horizontal Branch up to the onset of thermal pulses in an advanced phase of He-shell burning. This is done on the basis of a set of stellar-parameter assumptions suggested by the opportunity of covering the range of values expected in galactic globular cluster HB stars (under the further assumption of an original He abundance of 0.23, as adopted throughout the recent literature).
Bencivenni D.
Castellani Vittorio
Tornambe' Amedeo
Weiss Alexander
No associations
LandOfFree
Enhanced alpha-elements and He-burning Population II stars 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 Enhanced alpha-elements and He-burning Population II stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced alpha-elements and He-burning Population II stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1703503