Subaru Near Infrared Coronagraphic Images of T Tauri

Details Subaru Near Infrared Coronagraphic Images of T Tauri Subaru Near Infrared Coronagraphic Images of T Tauri

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pasj...58..375m&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.58, No.2, pp. 375-382

Astronomy and Astrophysics

Astronomy

15

Stars: Individual (T Tauri), Stars: Pre-Main Sequence, Ism: Reflection Nebula

Scientific paper

High angular resolution near-infrared (JHK) adaptive optics images of T Tau were obtained with the infrared camera Coronagraphic Imager with Adaptive Optics (CIAO) mounted on the 8.2m Subaru Telescope in 2002 and 2004. The images resolve a complex circumstellar structure around a multiple system. We resolved T Tau Sa and Sb as well as T Tau N and S. The estimated orbit of T Tau Sb indicates that it is probably bound to T Tau Sa. The K band flux of T Tau S decreased by ˜ 1.7 Jy in 2002 November compared with that in 2001 mainly because T Tau Sa became fainter. The arc-like ridge detected in our near-infrared images is consistent with what is seen at visible wavelengths, supporting the interpretation in previous studies that the arc is part of the cavity wall seen relatively pole-on. Halo emission is detected out to ˜2''from T Tau N. This may be light scattered off the common envelope surrounding the T Tauri multiple system.

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