Analysis of MOST light curves of five young stars in Taurus–Auriga and Lupus 3 star-forming regions
作者： Dimitar Sasselov , Michal Siwak , Michal Siwak , Slavek M. Rucinski , Anthony F. J. Moffat
DOI: 10.1111/J.1365-2966.2011.18683.X
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摘要: Continuous photometric observations of five young stars obtained by the MOST satellite in 2009 and 2010 Taurus Lupus star formation regions are presented. Using light-curve modelling under assumption internal invariability spots, we small values solar-type differential-rotation parameter (k = 0.0005–0.009) for three spotted weak-line T Tauri stars, V410 Tau, V987 Tau 3-14; another (WTTS), 3-48, data consistent with a rigidly rotating surface 0). Three flares similar rise (4 min 30 s) decay (1 h 45 min) times were detected light curve 3-14. The brightness classical RY continuously decreased over 3 weeks its variable modulation not showing any obvious periodic signal.
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Michal Siwak, Slavek M. Rucinski, Jaymie M. Matthews, Rainer Kuschnig, David B. Guenther, Anthony F. J. Moffat, Dimitar Sasselov, Werner W. Weiss, Analysis of the MOST light curve of the heavily spotted K2IV component of the single-line spectroscopic binary II Pegasi Monthly Notices of the Royal Astronomical Society. ,vol. 408, pp. 314- 321 ,(2010) , 10.1111/J.1365-2966.2010.17109.X
R. Wichmann, E. Covino, J. M. Alcalá, J. Krautter, S. Allain, P. H. Hauschildt, High resolution spectroscopy of ROSAT discovered weak line T Tauri stars near Lupus Monthly Notices of the Royal Astronomical Society. ,vol. 307, pp. 909- 918 ,(1999) , 10.1046/J.1365-8711.1999.02666.X
W. Herbst, D. K. Herbst, E. J. Grossman, D. Weinstein, Catalogue of UBVRI photometry of T Tauri stars and analysis of the causes of their variability The Astronomical Journal. ,vol. 108, pp. 1906- ,(1994) , 10.1086/117204
Gordon Walker, Jaymie Matthews, Rainer Kuschnig, Ron Johnson, Slavek Rucinski, John Pazder, Gregory Burley, Andrew Walker, Kristina Skaret, Robert Zee, Simon Grocott, Kieran Carroll, Peter Sinclair, Don Sturgeon, John Harron, The MOST Asteroseismology Mission: Ultraprecise Photometry from Space Publications of the Astronomical Society of the Pacific. ,vol. 115, pp. 1023- 1035 ,(2003) , 10.1086/377358
Slavek M. Rucinski, Gordon A. H. Walker, Jaymie M. Matthews, Rainer Kuschnig, Evgenya Shkolnik, Sergey Marchenko, David A. Bohlender, D. B. Guenther, Anthony F. J. Moffat, Dimitar Sasselov, Werner W. Weiss, Differential Rotation of the Active G5 V Star κ1 Ceti: Photometry from the MOST Satellite* Publications of the Astronomical Society of the Pacific. ,vol. 116, pp. 1093- 1104 ,(2004) , 10.1086/426928
P. P. Petrov, `Prominences' of RY Tauri Astrophysics and Space Science. ,vol. 169, pp. 61- 65 ,(1990) , 10.1007/BF00640687
Artie P. Hatzes, Doppler Imaging of the Cool SPOT Distribution on the Weak T Tauri Star V410 Tauri The Astrophysical Journal. ,vol. 451, pp. 784- ,(1995) , 10.1086/176265
Bryce Croll, Gordon A. H. Walker, Rainer Kuschnig, Jaymie M. Matthews, Jason F. Rowe, Andrew Walker, Slavek M. Rucinski, Artie P. Hatzes, William D. Cochran, Russell M. Robb, David B. Guenther, Anthony F. J. Moffat, Dimitar Sasselov, Werner W. Weiss, Differential Rotation of Eridani Detected by MOST The Astrophysical Journal. ,vol. 648, pp. 607- 613 ,(2006) , 10.1086/505792
Gordon A. H. Walker, Bryce Croll, Rainer Kuschnig, Andrew Walker, Slavek M. Rucinski, Jaymie M. Matthews, David B. Guenther, Anthony F. J. Moffat, Dimitar Sasselov, Werner W. Weiss, The Differential Rotation of κ1 Ceti as Observed by MOST The Astrophysical Journal. ,vol. 659, pp. 1611- 1622 ,(2007) , 10.1086/511851
F. M. Walter, A. Brown, J. L. Linsky, A. E. Rydgren, F. Vrba, M. Roth, L. Carrasco, P. F. Chugainov, N. I. Shakovskaya, C. L. Imhoff, X-ray sources in regions of star formation. II - The pre-main-sequence G star HDE 283572 The Astrophysical Journal. ,vol. 314, pp. 297- 307 ,(1987) , 10.1086/165059