Time Series Spectropolarimetry of T Tauri Stars

Details Time Series Spectropolarimetry of T Tauri Stars Time Series Spectropolarimetry of T Tauri Stars

Publishing date

Oct 2003

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003csss...12..729v&link_type=abstract

Journals

The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (2001 July 30 - August

Science

Astronomy and Astrophysics

Field

Astrophysics

Additional info 2

5

Additional info 3

Aa Tau, Bp Tau, Df Tau, Dk Tau, T Tauri Stars, Accretion, Polarimetry, Veiling

Type

Scientific paper

Abstract

We present 6 nights of spectropolarimetry and simultaneous photometry for the T Tauri stars AA Tau, BP Tau, DF Tau, and DK Tau. We determine net longitudinal magnetic field globally using photospheric absorption lines and in accretion zones using the 5876 Å ion{He}{1} line. We compare changes in magnetic field, broad band photometry, absorption line depths (veiling), line profile morphology, emission line strength, velocity shifts, and line asymmetry. The data constrain magnetic and accretion geometry.

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