Is LkHα 264 like a young, extremely active Sun?

Details Is LkHα 264 like a young, extremely active Sun? Is LkHα 264 like a young, extremely active Sun?

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.307l..23c&link_type=abstract

Monthly Notices, Volume 307, Issue 3, pp. L23-L26.

Computer Science

4

Scientific paper

We combine calibrated International Ultraviolet Explorer (IUE) archive data and new low-resolution optical data for the T Tauri star LkHα 264 covering the region from 1200 to 7000Å. The UV continuum is well fitted by the combination of a blackbody at 4300K plus hydrogenic free-free and free-bound emission from a dense plasma at 3.5x10^4K plus the emission by a second blackbody. This last component is at T~8700K and covers about 4per cent of the stellar surface. We interpret this last component to be the result of emission from one or various hotspots. The interesting result is that this combined emission also fits the observed optical continuum well. We conclude that this star is an analogue of the Sun, however displaying a much higher level of activity.

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