Abstract
view Abstract Citations (50) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS UBVRI monitoring of five late-type pre-main-sequence stars. Rydgren, A. E. ; Zak, D. S. ; Vrba, F. J. ; Chugainov, P. F. ; Zajtseva, G. V. Abstract Two T Tauri stars (DF Tau and DK Tau) and three pre-main-sequence K stars with weak line emission (WK X-Ray 1, WK X-Ray 2, and FK X-Ray 3) were monitored with UBVRI photometry over a 14-night period during October 1982. Neither T Tauri star shows an obvious rotational modulation in the light curve, but DF Tau did experience a multi-day flare-like brightening similar to the events seen in this star by Zajtseva and Lyutyi (1976). The light variations of the three weak-emission stars are well described by sine curves with periods of 5.6, 2.8, and 7.0 days, respectively; these values presumably represent the axial rotation periods of these stars. The results provide further evidence for K-type pre-main-sequence stars which rotate at least as fast as T Tauri stars but lack strong line and continuum emission. Publication: The Astronomical Journal Pub Date: July 1984 DOI: 10.1086/113597 Bibcode: 1984AJ.....89.1015R Keywords: K Stars; Late Stars; Pre-Main Sequence Stars; Stellar Spectrophotometry; Emission Spectra; H Alpha Line; Stellar Rotation; T Tauri Stars; Ubv Spectra; Astronomy full text sources ADS | data products SIMBAD (11) GCPD (1)
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
