> CNO Abundances of Stars Undergoing First Dredge Up. The abundances of C,, and the C and isotopic ratios of stars undergoing the first dredge up phase of convective mixing are summarized in this paper. Home > Journals > Proceedings of the International Astronomical Union > Symposium - International Astronomical Union > Volume 145: Evolution of Stars: The Photospheric A. Field stars A&A 411, 533-542 (2003) Meandering periods and asymmetries in light curves of Miras. Technetium and the third dredge up in AGB stars I. We performed a detailed analysis of the use of measured in red giant branch stars between the completion of the first dredge up and the red giant branch bump (_ in star clusters with well-established ages and metallicities are required to better test theoretical calibrations of this age indicator. Since the carbon core cant produce energy to heat up and balance the weight of the star, the core contracts and heats. Department of Astronomy and McDonald Observatory The University of Texas Austin Texas 78712 USA ABSTRACT. luminosity is used to lift the wind material out of the gravitational potential well of the star. Astronomy & Astrophysics (A&A) is an international journal which publishes papers on all aspects of astronomy and astrophysics Journals Books Conferences 0.
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