IIA Institutional Repository

Browsing by Subject "Stellar physics"

Browsing by Subject "Stellar physics"

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  • Polarization line radiative transfer in the atmospheres of magnetic white dwarfs 
    Nagendra, K. N (Akademie verlag GmbH, 1987)
    Some physical mechanisms which can affect the Zeeman line profiles of magnetic white dwarfs are studied. The pure absorption polarization transfer equation is solved including these mechanisms. The broadening of lines in ...
  • Spectroscopic Study of Ba and CEMP-s Stars: Mass Distribution of AGB Progenitors 
    Goswami, P. P; Goswami, A (American Astronomical Society, 2023-04-01)
    We have performed detailed high-resolution spectroscopic analysis on seven metal-poor stars (BD+75 348, BD +09 3019, HD238020, HE0319–0215, HE0507–1653, HE0930–0018, HE1023–1504) and derived their atmospheric parameters ...
  • Sun as a star - Rotation rates from the CA K-index 
    Singh, J; Livingston, W. C (Kluwer Academic Publishers, 1987-09)
    Daily measurements for 18 months made at Tucson of the Ca K-index in integrated sunlight have been used to derive solar rotation rates. Power spectral analysis shows that one can obtain a well defined value of solar rotation ...
  • The synthesis of Al-26 during combined hydrogen and helium-burning reactions 
    Goswami, A; Ramadurai, S; Duorah, H. L (Springer Netherlands, 1992-02)
    The synthesis of Al-26 during combined hydrogen and helium-burning processes in high temperature and density conditions is studied. The possible sites for these processes are believed to be the neutron star surfaces where ...
  • Thermal-convective instability in a stellar atmosphere 
    Sharma, R. C (Astronomical Society of India, 1990)
    The effect of a variable magnetic field on the thermal-convective instability in a stellar atmosphere in the presence of a stable solute gradient is considered. A dispersion relation is obtained which shows that criteria ...

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