Small outburst on the infrared companion of T Tauri finished

Details Small outburst on the infrared companion of T Tauri finished Small outburst on the infrared companion of T Tauri finished

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasj...46l.183k&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 46, no. 5, p. L183-L186

Astronomy and Astrophysics

Astronomy

17

Binary Stars, Companion Stars, Infrared Astronomy, Infrared Imagery, Near Infrared Radiation, Stellar Evolution, Stellar Flares, Stellar Luminosity, Stellar Magnitude, T Tauri Stars, Cameras, Infrared Telescopes, Spectral Energy Distribution, Stellar Mass Accretion

Scientific paper

H (1.65 micrometer)- and K (2.2 micrometer)-band high-resolution images are presented for the pre-main-sequence binary T Tau. A resolution of 0.28 sec in full width at half maximum (FWHM) was achieved in the K band by applying a shift-and-add method to short-exposure frames. While a small outburst with an amplitude of approximately 2 mag had happened on the infrared companion of T Tau (T Tau S) around 1990, the observed flux of T Tau S decreased by a factor of approximately 1 mag from its maximum value in both the H and K bands at the time of 1992 January. Our data points limit the duration of the outburst to only a few years. In view of the amplitude and duration, the outburst might have been an EXor outburst, which is like an FUor outburst, with a smaller amplitude and a shorter duration. If T Tau S is in the FUor phase, as Ghez et al. (1991), have proposed, our data show that the EXor-type outburst can occur in the FUor phase of infrared companions. The outburst appears to be a single event which had not been observed in the T Tau system for about thirty years, although smaller ones might have occurred.

Affiliated with

Also associated with

No associations

Rating

Small outburst on the infrared companion of T Tauri finished 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 Small outburst on the infrared companion of T Tauri finished, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Small outburst on the infrared companion of T Tauri finished will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1072642