Excitation of transverse magnetic tube waves in stellar convection zones . III. Effects of metallicity on wave energy spectra and fluxes

Details Excitation of transverse magnetic tube waves in stellar convection zones . III. Effects of metallicity on wave energy spectra and fluxes Excitation of transverse magnetic tube waves in stellar convection zones . III. Effects of metallicity on wave energy spectra and fluxes

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...386..615m&link_type=abstract

Astronomy and Astrophysics, v.386, p.615-621 (2002)

Astronomy and Astrophysics

Astrophysics

6

Methods: Analytical, Stars: Chromosphere, Stars: Coronae, Stars: Magnetic Fields, Mhd, Waves

Scientific paper

In the previous two papers of this series, we developed an analytical method describing the generation of transverse tube waves in stellar convection zones and used it to compute the wave energy spectra and fluxes for late-type stars with the solar metal abundance (population I stars). We now extend these calculations to population II stars with effective temperatures ranging from Teff = 2500 K to 10 000 K, gravities log g = 3 - 5, and with three different metal abundances: 1/10, 1/100 and 1/1000 of solar metallicity. The obtained results are valid only for a single magnetic flux tube and they show that the effects of metallicity are important only for cool stars with Teff < 6000 K and that the amount of the generated wave energy decreases roughly by an order of magnitude for every decrease of the metallicity by an order of magnitude. The maximum wave energy flux generated in population II stars is 3 x 109 erg cm-2 s-1 and it is practically the same for stars of different gravities and metallicities.

Affiliated with

Also associated with

No associations

Rating

Excitation of transverse magnetic tube waves in stellar convection zones . III. Effects of metallicity on wave energy spectra and fluxes 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 Excitation of transverse magnetic tube waves in stellar convection zones . III. Effects of metallicity on wave energy spectra and fluxes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Excitation of transverse magnetic tube waves in stellar convection zones . III. Effects of metallicity on wave energy spectra and fluxes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1716739