T Tauri star

(redirected from T Tauri variable)

T Tauri star

[′tē ′tȯr·ē ‚stär]
(astronomy)
A star, with mass from 0.5 to 2.5 solar masses, in an early stage of formation at which interaction with its associated nebulosity, as well as possible internal instabilities, make it variable in luminosity and render its spectrum very peculiar. Also known as nebular variable.
References in periodicals archive ?
He attempted to give a positive answer to the question, 'Are the T Tauri variables new stars, recently formed or still forming within the nebulae, or are they ordinary field stars that have encountered the gas and dust clouds accidentally, and are in process of being modified--perhaps rather superficially--by their environment?