Periodical light variations of t tauri stars as a result of disk accretion |
| |
| Authors: | S A Lamzin |
| |
| Institution: | (1) Sternberg Astronomical Institute, Moscow V-234, 119899, Russia |
| |
| Abstract: | I argue that temperatures of spots, responsible for observed periodical light variations of T Tauri stars (TTS), are not known with reliable accuracy to discriminate between chromospheric and accretion theories of TTS 's phenomenon. The hypothesis is set up that spots on classical TTS (CTTS) are due to heating of stellar surface by radiation from a collisional accretion shock, whereas spots on weak line TTS (WTTS), at least in some cases, are connected with a collisionless accretion shock rather than chromospheric activity. Possible scenarios of WTTS interaction with circumstellar matter are discussed. |
| |
| Keywords: | Pre-main sequence stars Spots Accretion Shock waves |
| 本文献已被 SpringerLink 等数据库收录！ |
|
