Spatially Resolving the Inner Disk of TW Hya

Details Spatially Resolving the Inner Disk of TW Hya Spatially Resolving the Inner Disk of TW Hya

2006-01-02

arxiv.org/abs/astro-ph/0601034v1

Astrophys.J. 637 (2006) L133-L136

Astronomy and Astrophysics

Astrophysics

11 pages, including 2 figures. Accepted by ApJL

Scientific paper

10.1086/500689

We present Keck Interferometer observations of TW Hya that spatially resolve its emission at 2 micron wavelength. Analyzing these data together with existing K-band veiling and near-infrared photometric measurements, we conclude that the inner disk consists of optically thin, sub-micron-sized dust extending from ~4 AU to within 0.06 AU of the central star. The inner disk edge may be magnetospherically truncated. Even if we account for the presence of gas in the inner disk, these small dust grains have survival times against radiation blow-out that are orders of magnitude shorter than the age of the system, suggesting continual replenishment through collisions of larger bodies.

Affiliated with

Also associated with

No associations

Rating

Spatially Resolving the Inner Disk of TW Hya 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 Spatially Resolving the Inner Disk of TW Hya, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatially Resolving the Inner Disk of TW Hya will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-490896