Dependence of Solar Line Bisectors on Equivalent Widths
نویسندگان
چکیده
منابع مشابه
Table 1. Line equivalent widths (˚A) and veilings.
– 1 – Table 1. Line equivalent widths (˚ A) and veilings.
متن کاملDependence of Kolmogorov widths on the ambient space
We study the dependence of the Kolmogorov widths of a compact set on the ambient Banach space.
متن کاملMeasuring stellar oscillations using equivalent widths of absorption lines
Kjeldsen et al. (1995) have developed a new technique for measuring stellar oscillations and claimed a detection in the G subgiant η Boo. The technique involves monitoring temperature fluctuations in a star via their effect on the equivalent width of Balmer lines. In this paper we use synthetic stellar spectra to investigate the temperature dependence of the Balmer lines, Ca ii, Fe i, the Mg b ...
متن کاملSolar off - limb line widths : Alfvén waves , ion - cyclotron waves , and preferential heating
Context. Alfvén waves and ion-cyclotron absorption of high-frequency waves are frequently brought into models devoted to coronal heating and fast solar-wind acceleration. Signatures of ion-cyclotron resonance have already been observed in situ in the solar wind (HELIOS spacecrafts) and, recently, in the upper corona (UVCS/SOHO remote-sensing results). Aims. We propose a method to constrain both...
متن کاملSolar-like oscillation amplitudes and line-widths as a probe for turbulent convection in stars
Excitation of solar-like oscillations is attributed to turbulent convection and takes place at the upper-most part of the outer convective zones. Amplitudes of these oscillations depend on the efficiency of the excitation processes as well as on the properties of turbulent convection. We present past and recent improvements on the modeling of those processes. We show how the mode amplitudes and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1989
ISSN: 0252-9211
DOI: 10.1017/s0252921100154284