Is LkH 264 like a young , extremely active Sun ?
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چکیده
We combine calibrated IUE data archive and new low resolution optical data for the T Tauri star LkH 264 covering the region from 1200 to 7000 A. The UV continuum is well tted by the combination of a black body at 4300 K plus hydrogenic free-free and free-bound emission from a dense plasma at 3.5 10 4 K plus the emission by a second black body. This last component is at T 8700 K and covers about 4% of the stellar surface. We interpret this last component to be the result of emission from one or various hot spots. The interesting result is that this combined emission also ts well the observed optical continuum. We conclude that this star is an analogue of the Sun however displaying a much higher level of activity.
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تاریخ انتشار 2007