Brightness variations caused by surface magnetic fields in pre-main-sequence stars

Details Brightness variations caused by surface magnetic fields in pre-main-sequence stars Brightness variations caused by surface magnetic fields in pre-main-sequence stars

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...278..689a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 278, March 15, 1984, p. 689-694. Sponsorship: Deutsche Forschungsgemeinscha

Astronomy and Astrophysics

Astrophysics

33

Brightness Distribution, Pre-Main Sequence Stars, Stellar Magnetic Fields, Stellar Models, T Tauri Stars, Variable Stars, Magnetic Flux, Mass To Light Ratios, Radiant Flux Density, Stellar Mass, Surface Properties

Scientific paper

The authors computed pre-main-sequence stellar models with variable surface magnetic fields. For models with initial parameters similar to those of typical T Tauri stars, imposing surface magnetic fields of 1300 and 165 gauss resulted in visual brightness changes up to 3.5 mag. It is concluded that most of the observed brightness variability of the T Tauri stars may be caused by variable surface magnetic fields.

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