Difference between revisions of "Triggers:TTau"
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== T Tauri stars == | == T Tauri stars == | ||
| − | [[File:figure_ttau_mag.png| | + | [[File:figure_ttau_mag.png|400px|right|thumb|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]. | |
Characteristics: | Characteristics: | ||
| − | * irregular variations | + | * irregular and quasi-periodic variations |
| − | * high amplitude | + | * high amplitude (up to 5 mag) |
* may have a phase of quiescence (see figure) | * may have a phase of quiescence (see figure) | ||
* absolute magnitude range: M_V=? to ? mag | * absolute magnitude range: M_V=? to ? mag | ||
* ? < V-I < ? | * ? < V-I < ? | ||
Revision as of 02:07, 26 October 2009
T Tauri stars
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 < ?
