The rapidly oscillating AP stars as a test of stellar chromospheric heating mechanisms

Details The rapidly oscillating AP stars as a test of stellar chromospheric heating mechanisms The rapidly oscillating AP stars as a test of stellar chromospheric heating mechanisms

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...182..285s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 182, no. 2, Aug. 1987, p. 285-289.

Astronomy and Astrophysics

Astrophysics

9

A Stars, Chromosphere, Peculiar Stars, Stellar Atmospheres, Atmospheric Heating, Emission Spectra, Magnetic Stars, Metallicity, Stellar Oscillations

Scientific paper

The discovery of a new class of magnetic stars, the rapidly pulsating Ap stars, provides an unprecedented tool for the study of Alfvénic heating in the outer atmospheres of main sequence stars. In this note, the authors point out that detection of rotationally modulated chromospheric emission line fluxes, especially the Ca II, Mg II, and C IV lines, can provide a novel method for investigating the role of Alfvénic heating in stellar atmospheres.

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