Back T Tauri-ster Afrikaans نجم T الثور Arabic Estrella T Tauri AST T Tauri ulduzları Azerbaijani T Tauri zvijezda BS Estrella T Tauri Catalan Hvězda typu T Tauri Czech T-Tauri-Stern German Αστέρας τύπου T Ταύρου Greek Estrella T Tauri Spanish
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| Object classes |
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T Tauri stars (TTS) are a class of variable stars that are less than about ten million years old.[1] This class is named after the prototype, T Tauri, a young star in the Taurus star-forming region. They are found near molecular clouds and identified by their optical variability and strong chromospheric lines. T Tauri stars are pre-main-sequence stars in the process of contracting to the main sequence along the Hayashi track, a luminosity–temperature relationship obeyed by infant stars of less than 3 solar masses (M☉) in the pre-main-sequence phase of stellar evolution.[2] It ends when a star of 0.5 M☉ or larger develops a radiative zone, or when a smaller star commences nuclear fusion on the main sequence.
- ^ Cite error: The named reference
appenzellerwas invoked but never defined (see the help page). - ^ "Stellar Evolution - Cycles of Formation and Destruction; Young Stellar Objects". chandra.harvard.edu. Retrieved 2023-01-31.
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