The Effect of Screening Factors and Thermonuclear Reaction Rates in the Pre-main Sequence Evolution of Low Mass Stars

KÜÇÜK İ., Çalişkan Ş.

JOURNAL OF ASTROPHYSICS AND ASTRONOMY, cilt.31, sa.3, ss.135-145, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s12036-010-0012-y
  • Dergi Adı: JOURNAL OF ASTROPHYSICS AND ASTRONOMY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.135-145
  • Anahtar Kelimeler: Low mass stars, thermonuclear reaction rates, electron screening factors, composition changes, NUCLEAR-REACTION RATES, SOLAR MODELS, DENSITIES
  • Ankara Üniversitesi Adresli: Evet

Özet

In understanding the nucleosynthesis of the elements in stars, one of the most important quantities is the reaction rate and it must be evaluated in terms of the stellar temperature T, and its determination involves the knowledge of the excitation function sigma (E) of the specific nuclear reaction leading to the final nucleus. In this paper, the effect of thermonuclear reaction rates to the pre-main sequence evolution of low mass stars having masses 0.7, 0.8, 0.9 and 1 M circle dot are studied by using our modified Stellar Evolutionary Program.