Other
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006javso..35..290p&link_type=abstract
The Journal of the American Association of Variable Star Observers, vol. 35, no. 1, p. 290-305
Other
5
Ab Aur, Rw Aur, Sv Cep, R Cra, S Cra, Ry Lup, R Mon, Ux Tau, Bp Tau, Dl Tau, Ww Vul
Scientific paper
T Tauri stars are stars in the final stages of birth, in which accretion from a circumstellar disc of gas and dust is still taking place. By some definitions, T Tauri stars include only GKM types; in this paper, we include higher-mass pre-mainsequence variables as well. AAVSO observers have made tens of thousands of visual measurements of T Tauri stars, but most of the measurements were never validated because their scientific value was not clear. We have used Fourier and selfcorrelation techniques to analyze AAVSO visual measurements of eleven T Tauri stars, namely AB Aur, RW Aur, SV Cep, R CrA, S CrA, RY Lup, R Mon, UX Tau, BP Tau, DL Tau, and WW Vul. We have compared the results to those obtained from long-term CCD measurements of the same stars. Using our methods of analysis, it is possible to detect periods, even if the amplitude is only a few hundredths of a magnitude, or to set upper limits, as small as 0.01 magnitude, on any periodic component to the variability. For each star, periodic or not, we have determined the variability "profile"-the relation between time scale and amount of variability. We conclude that the AAVSO visual measurements of T Tauri stars have definite scientific value. It would therefore be desirable to validate the visual measurements of other T Tauri stars.
Palaniappan Rohan
Percy John R.
No associations
LandOfFree
Analysis of AAVSO Visual Measurements of T Tauri Variable Stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analysis of AAVSO Visual Measurements of T Tauri Variable Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of AAVSO Visual Measurements of T Tauri Variable Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1063244