Doppler imaging of the T Tauri star HDE 283572

Details Doppler imaging of the T Tauri star HDE 283572 Doppler imaging of the T Tauri star HDE 283572

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...291l..19j&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 291, no. 2, p. L19-L22

Astronomy and Astrophysics

Astrophysics

60

Abundance, Doppler Effect, Photosphere, Radar Photography, T Tauri Stars, Temperature Distribution, H Alpha Line, Light Curve, Rotational Spectra, Stellar Magnetic Fields

Scientific paper

We present Doppler images of the surface temperature distribution of the rapidly rotating weak-emission line T Tauri star HDE 283572, as computed from the FeI lambda 6400A, FeI lambda 6393A, CaI lambda 6439A, and LiI lambda 6707A photospheric lines. This analysis reveals the presence of one large polar structure 1600 K colder than the surrounding photosphere. We also find a possible rotational modulation of the Halpha and CaII equivalent line widths that suggests the presence of large-scale chromospheric structures above the stellar surface.

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