Difference between revisions of "Triggers:TTau"

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== T Tauri stars ==
 
== T Tauri stars ==
[[File:figure_ttau_mag.png|400px|right|thumb|Example of TTau star from the ASAS data]]
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[[File:figure_ttau_mag.png|400px|right|thumb|T Cha - example of TTau star from the ASAS data]]
  
 
T Tauri type stars are very young (<math> <10^7 </math> y), low mass (<math> <3 M^{}_\odot </math>) pre-main sequence objects [http://adsabs.harvard.edu/abs/1989A%26ARv...1..291A Appenzeller & Mundt 1989].
 
T Tauri type stars are very young (<math> <10^7 </math> y), low mass (<math> <3 M^{}_\odot </math>) pre-main sequence objects [http://adsabs.harvard.edu/abs/1989A%26ARv...1..291A Appenzeller & Mundt 1989].

Revision as of 19:37, 28 October 2009

T Tauri stars

T Cha - example of TTau star from the ASAS data

T Tauri type stars are very young (<math> <10^7 </math> y), low mass (<math> <3 M^{}_\odot </math>) pre-main sequence objects Appenzeller & Mundt 1989.

Characteristics:

  • irregular and quasi-periodic variations
  • high amplitude (up to 5 mag)
  • may have a phase of quiescence (see figure)
  • absolute magnitude range: M_V=? to ? mag
  •  ? < V-I < ?