Triggers:TTau

From Gaia Science Alerts Working Group
Revision as of 02:07, 26 October 2009 by Pilecki (talk | contribs)
Jump to navigationJump to search

T Tauri stars

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 < ?