DOPPLER IMAGING OF STELLAR SURFACE-STRUCTURE .2. THE WEAK-LINED T-TAURI STAR V410-TAURI

Citation
Jb. Rice et Kg. Strassmeier, DOPPLER IMAGING OF STELLAR SURFACE-STRUCTURE .2. THE WEAK-LINED T-TAURI STAR V410-TAURI, Astronomy and astrophysics, 316(1), 1996, pp. 164-172
Citations number
35
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00046361
Volume
316
Issue
1
Year of publication
1996
Pages
164 - 172
Database
ISI
SICI code
0004-6361(1996)316:1<164:DIOSS.>2.0.ZU;2-H
Abstract
We present a new Doppler image of the rapidly-rotating weak-lined T Ta uri star V410 Tauri and compare this new map with one previously publi shed from observations taken over a year earlier. We find cool spots a t both equatorial latitudes and at high latitudes with the high latitu de spots being cooler and showing greater area and having greater long evity than the equatorial spots. A comparison of the two maps shows li ttle relative change in the positions of the equatorial spots compared to the spots at high latitude suggesting very little differential rot ation and what there is appears to be in the same sense as the Sun. Gl obal spot lifetime would appear to be on the order of the time interva l between the two maps, that is about a year. There are several hot fe atures evident supporting the claim for the existence of such features based on our map of Nov. 1992.