Chromospheric Mg II h+k flux of evolved stars (Perez+, 2011)

Details Chromospheric Mg II h+k flux of evolved stars (Perez+, 2011) Chromospheric Mg II h+k flux of evolved stars (Perez+, 2011)

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012ycat..74140418p&link_type=abstract

VizieR On-line Data Catalog: J/MNRAS/414/418. Originally published in: 2011MNRAS.414..418P

Physics

Stars: Late-Type, Stars: Giant, Stars: Supergiant, Effective Temperatures

Scientific paper

Of a total of 177 cool G, K and M giants and supergiants, we measured the MgII h+k line emission of extended chromospheres in high-resolution (LWR) International Ultraviolet Explorer (IUE) spectra by using the IUE final data archive at the Space Telescope Science Institute (STScI) and derived the respective stellar surface fluxes. They represent the chromospheric radiative energy losses presumably related to basal heating by the dissipation of acoustic waves, plus a highly variable contribution due to magnetic activity.
(1 data file).

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