Activity in late-type stars. IX. The weakest chromosphere M dwarf yet discovered : GL 105B.
Abstract
We present an estimate of chromospheric radiative losses from the dM(e) star, Gl 105B, based on a measurement of the MgII h&k emission line flux, which indicates that this star has the weakest chromospheric heating rate yet found in any M dwarf and that it lies well below the 'basal' heating rate of derived by Schrijver (1987).
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- November 1993
- Bibcode:
- 1993A&A...278..520B
- Keywords:
-
- Chromosphere;
- Emission Spectra;
- H Alpha Line;
- K Lines;
- Magnesium;
- Radiative Heat Transfer;
- Red Dwarf Stars;
- Stellar Activity;
- Absorption Spectra;
- Astronomical Spectroscopy;
- Iue;
- Astrophysics