SIMBAD references

2001ApJ...551.1031B - Astrophys. J., 551, 1031-1036 (2001/April-3)

Evidence for extinction and accretion variability in T Tauri south.


Abstract (from CDS):

We present angularly resolved spectra of T Tau North and South in the 3 µm water-ice feature and K band. Most of the water-ice absorption lies along the line of sight toward T Tau South, confirming that it is viewed through stronger extinction. A decrease in ice-band absorption toward T Tau S between 1998 December and 2000 January, significant at the 2 σ level, was associated with an increase in its near-IR flux. Brγ emission is detected in T Tau North and South and H2 (2.12 µm) emission toward only T Tau South, consistent with previous studies of infrared companions to T Tauri stars. Our results suggest that the near-IR variability of T Tau S is probably caused by both variations in accretion rate and variable extinction along the line of sight.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Visual - Infrared: Stars - stars: individual (T Tauri) - Stars: Pre-Main-Sequence - Stars: Variables: Other

Simbad objects: 9

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