The Enigma of DG Tau: Silicate Emission Variability

Details The Enigma of DG Tau: Silicate Emission Variability The Enigma of DG Tau: Silicate Emission Variability

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..324..224w&link_type=abstract

Debris Disks and the Formation of Planets: A Symposium in Memory of Fred Gillett, ASP Conference Series, Vol. 324, Proceedings o

Astronomy and Astrophysics

Astronomy

5

Scientific paper

We discuss results of our multi-epoch HIFOGS moderate resolution 10 micron spectroscopy and DUSTY+DISK modeling of the highly photometrically active T Tauri star, DG Tau. Of note, DG Tau has exhibited significant temporal variability of the 10 micron silicate feature -- specifically no feature for decades, to emission feature for 2 years, to no feature 2 months later, to absorption feature for 3 years, to no feature, to (?) emission feature -- that is unique among PMS objects. This temporal sequence of events, combined with our 1-23 micron photometric monitoring and additional mid-infrared (IR) spectroscopy by BASS, places stringent limitations on the disk, disk-envelope geometry, and directly permits us to probe dust processes in the inner 50 to 100 AU of the disk.

Affiliated with

Also associated with

No associations

Rating

The Enigma of DG Tau: Silicate Emission Variability 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 The Enigma of DG Tau: Silicate Emission Variability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Enigma of DG Tau: Silicate Emission Variability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1022717