Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934417d&link_type=abstract
American Astronomical Society, AAS Meeting #219, #344.17
Astronomy and Astrophysics
Astronomy
Scientific paper
SED modeling of debris disks is an important tool for revealing information about disk structure and the dust composition. Combining SED modeling and resolved imaging can constrain disk parameters and break degeneracies that plague SED modeling efforts. This allows us to constrain the location of the planetesimal belt and determine the composition of the dust grains. We apply these techniques to the disk of HD 32297. HD 32297 is a 30-Myr-old A0 star 112 pc away with a nearly edge-on debris disk that extends hundreds of AUs from the star. The HD 32297 debris disk has been resolved at several wavelengths (near-IR with HST NICMOS, mid-IR with Gemini South, and millimeter wavelengths with CARMA). We combine resolved imagery of the disk with archive data from Hipparcos, 2MASS, WISE, Spitzer, and IRAS to model the disk. Additionally, we use Herschel PACS data from the Gas in Protoplanetary Systems (GASPS) Open Time Key Programme. The PACS photometry at 70, 100, and 160 microns further constrains the SED, and the PACS spectroscopy places upper limits on the gas abundance.
Donaldson Jessica
Roberge Aki
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