Measurement of magnetic fields in dMe stars using the Zeeman effect

Details Measurement of magnetic fields in dMe stars using the Zeeman effect Measurement of magnetic fields in dMe stars using the Zeeman effect

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004asthe..97..345o&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 97, No. 6, p. 345 - 350 (2004)

Astronomy and Astrophysics

Astronomy

Dwarfs, Magnetic Fields

Scientific paper

While it is suggested that dMe stars have strong magnetic fields, there are only few accurate measurements of the magnetic fields because of faintness of these stars and requirement of high-resolution spectroscopy. We carried out high-resolution spectroscopic observations using HIDES, and measured the strength of the magnetic fields in three dMe stars. As a result, we have obtained typical values of the field strength and the filling factor in these stars. One of these stars was revealed to have parameters inconsistent with those previously measured, which suggests a possibility of long-term variability of the magnetic field strength. We expect future continuous observations to reveal the stellar magnetic variability in the long term.

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