Fe I Line Asymmetries and Shifts Caused by Pressure Broadening
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چکیده
منابع مشابه
Stellar Surface Convection, Line Asymmetries, and Wavelength Shifts 1. Solar Line Asymmetries and Shifts
Wavelength positions of photospheric absorption lines may be aaected by surface convection (stellar granulation). Asymmetries and wavelength shifts originate from correlated velocity and brightness patterns: rising (blueshifted) elements are hot (bright), and convective blueshifts result from a larger contribution of such blueshifted photons than of redshifted ones from the sinking and cooler (...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1991
ISSN: 0252-9211
DOI: 10.1017/s0252921100079768