Mid-Infrared Imaging of Southern Vega-Like Sources

Details Mid-Infrared Imaging of Southern Vega-Like Sources Mid-Infrared Imaging of Southern Vega-Like Sources

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..353f&link_type=abstract

NOAO Proposal ID #1999B-0353

Computer Science

Scientific paper

We propose mid-infrared (10 and 18 micron) observations of Vega-Like sources with known infrared excesses to search for extended disks and to study disk structure. New infrared instruments, such as the University of Florida camera system OSCIR, provide the sensitivity and high spatial resolution needed to make detection of a significant number of sources possible for the first time. An investigation of a significant number of these systems is important since we will be able to start placing limits on how many of these stars have disks, and if there is any evidence for companions in those disks. The proposed observations have the potential to impact our understanding of disk evolution, composition, and structure, as well as our understanding of planetesimal and planet formation in circumstellar gas and dust disks. The OSCIR observations proposed here complement ones made in September of 1998 and represent the first mid-IR imaging of these Southern Hemisphere Vega- type stars. We request a total of 4 nights to complete this unique program.

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