Astronomy and Astrophysics – Astronomy
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pasp..101..528b&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 101, May 1989, p. 528-540.
Astronomy and Astrophysics
Astronomy
36
Chromosphere, Dwarf Stars, Main Sequence Stars, Photosphere, Stellar Activity, Stellar Spectra, Absorption Spectra, Classifications, Echelle Gratings, K Stars, Magnetic Flux, Stellar Cores, Temperature Gradients
Scientific paper
High-resolution echelle spectra were obtained for early K dwarfs in order to study the effects of stellar activity on photospheric absorption lines. Two classes of effects are noted in the ratio spectra: simple pseudoemission profiles resulting from the filling in of the line core, and profiles indicating that lines in some active stars have broader wings but shallower cores than their inactive counterparts. It is suggested that the present stellar activity effects may be the result of a shallower average photospheric temperature gradient due to nonradiative heating in the upper photosphere and additional effects inside the magnetic flux tubes.
Basri Gibor
Stout Natalie
Wilcots Eric
No associations
LandOfFree
Photospheric activity in main-sequence stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Photospheric activity in main-sequence stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photospheric activity in main-sequence stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1875225