Mid-infrared size survey of Young Stellar Objects: Description of Keck segment-tilting experiment and basic results

Details Mid-infrared size survey of Young Stellar Objects: Description of Keck segment-tilting experiment and basic results Mid-infrared size survey of Young Stellar Objects: Description of Keck segment-tilting experiment and basic results

2009-05-21

arxiv.org/abs/0905.3495v1

Astrophys.J.700:491-505,2009

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Accepted by Astrophysical Journal. 38 pages. 9 figures

Scientific paper

10.1088/0004-637X/700/1/491

The mid-infrared properties of pre-planetary disks are sensitive to the temperature and flaring profiles of disks for the regions where planet formation is expected to occur. In order to constrain theories of planet formation, we have carried out a mid-infrared (wavelength 10.7 microns) size survey of young stellar objects using the segmented Keck telescope in a novel configuration. We introduced a customized pattern of tilts to individual mirror segments to allow efficient sparse-aperture interferometry, allowing full aperture synthesis imaging with higher calibration precision than traditional imaging. In contrast to previous surveys on smaller telescopes and with poorer calibration precision, we find most objects in our sample are partially resolved. Here we present the main observational results of our survey of 5 embedded massive protostars, 25 Herbig Ae/Be stars, 3 T Tauri stars, 1 FU Ori system, and 5 emission-line objects of uncertain classification. The observed mid-infrared sizes do not obey the size-luminosity relation found at near-infrared wavelengths and a companion paper will provide further modelling analysis of this sample. In addition, we report imaging results for a few of the most resolved objects, including complex emission around embedded massive protostars, the photoevaporating circumbinary disk around MWC 361A, and the subarcsecond binaries T Tau, FU Ori and MWC 1080.

Affiliated with

Also associated with

No associations

Rating

Mid-infrared size survey of Young Stellar Objects: Description of Keck segment-tilting experiment and basic results 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 Mid-infrared size survey of Young Stellar Objects: Description of Keck segment-tilting experiment and basic results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mid-infrared size survey of Young Stellar Objects: Description of Keck segment-tilting experiment and basic results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-445284