The Nature of Transition Disks in Nearby Star-forming Regions

Details The Nature of Transition Disks in Nearby Star-forming Regions The Nature of Transition Disks in Nearby Star-forming Regions

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21733909c&link_type=abstract

American Astronomical Society, AAS Meeting #217, #339.09; Bulletin of the American Astronomical Society, Vol. 43, 2011

Physics

Optics

Scientific paper

We present an update on our ongoing project to characterize a large sample of Spitzer selected transition disks located in several star-forming regions. Transition objects are pre-main-sequence stars with optically thin inner disks and optically thick outer disks. Different mechanisms have been proposed to explain their inner opacity holes: planet formation, grain growth, photoevaporation, and tidal truncation in tight binaries. These mechanisms, all relevant to disk evolution in general, can be distinguished when disk masses, accretion rates, and multiplicity information are available. We have already completed our study of Ophiuchus objects, presenting the results from Adaptive Optics (AO) imaging, submillimeter photometry, and echelle spectroscopy observations. We are currently working on several other regions, including Taurus-Auriga, Perseus, Serpens, and Lupus. Our results show that transition disks are a very heterogeneous group of objects with a wide range of SED morphologies, disk masses ( < 0.5 to 40 Mjup), and accretion rates (<10E-11 to 10E-7 Msolar/yr). Since the properties of our transition disks point toward distinct processes driving the evolution of each disk, we have been able to identify very strong candidates for the following disk categories: circumbinary disks, grain-growth dominated disks, photoevaporating disks, debris disks, and (giant) planet-forming disks.

Affiliated with

Also associated with

No associations

Rating

The Nature of Transition Disks in Nearby Star-forming Regions 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 Nature of Transition Disks in Nearby Star-forming Regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Nature of Transition Disks in Nearby Star-forming Regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1402529