classical T Tauri star

classical T Tauri star

[¦klas·ə·kəl ¦tē ¦tȯr·ē ′stär]
(astronomy)
A T Tauri star that exhibits strong emission lines in its optical spectrum, emits a strong stellar wind, and accretes material from a circumstellar disk.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The link derives from a comparison between two classes of such objects: the classical T TAuri stars and the "naked" (or weak-line) T Tauri stars.
Among the distinguishing properties of classical T Tauri stars is an excess of infrared and ultraviolet emission compared to stars with similar surface temperatures and sizes.
The disk-jet connection
Classical T Tauri stars are often surrounded by dust and gas.
"The odd thing is that it's been remarkably difficult to find spectroscopic binaries among the classical T Tauri stars."
That could explain why some naked T tauri stars have companions but no circumstellar material, whereas classical T Tauri stars, with their accompanying dust clouds, appear rarely to have companions.
Binary births: astronomers investigate the secret lives of paired young stars
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