High-resolution spectroscopy of DR Tauri

Details High-resolution spectroscopy of DR Tauri High-resolution spectroscopy of DR Tauri

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100..815a&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, July 1988, p. 815-824.

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24

Peculiar Stars, Spectrum Analysis, Stellar Spectra, T Tauri Stars, Absorption Spectra, Balmer Series, Forbidden Transitions, Helium, Photosphere, Resonance Lines, Stellar Models

Scientific paper

The authors obtained high-resolution echelle spectrograms of the peculiar T Tauri star DR Tau. Most observed emission lines show surprisingly narrow and regular profiles. The stronger Fe II lines have redward-displaced (YY Ori) absorption components. As in other strong-emission T Tauri stars only the intrinsically weak photospheric lines occur in absorption. Nevertheless, the photospheric contribution to the observed light is significantly stronger than predicted by theoretical models proposed for the DR Tau system.

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