Results 151 to 160 of about 302 (161)

Energy Balance in Solar and Stellar Chromospheres

open access: yes, 1981
The spectrum from a specific region of the sun or from a star can be used to determine the temperature-density stratification and other physical properties of the emitting atmospheric layers. We need such a description of the atmosphere in order to understand the causes of solar activity and the nature of various stellar phenomena.
Eugene H. Avrett
openaire   +2 more sources

Stellar chromospheric activity in main-sequence stars

The research presented here presents a narrow slice of several largescale, ground-based astronomy surveys focused on chromospheric activity measurements of stars from the Keck Observatory. We conducted a comprehensive study analyzing chromospheric activity and its relationship with stellar properties in exoplanet host stars and solar neighborhood stars.
openaire   +1 more source

Stellar spectroscopy in ground-based ultraviolet. III: Chromospheres and envelopes of cool stars

Astrophysical Bulletin, 2010
V E Panchuk, V G Klochkova, M V Yushkin
exaly  

Stellar Model Chromospheres. H. Procyon (F5 Iv/v)

Astrophysical Journal, 1974
Thomas R Ayres, Richard A Shine
exaly  

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