[17.11] Multiband ACS Coronagraphic Imaging of the Debris Disk around $\beta$ Pictoris

AAS 205th Meeting, 9-13 January 2005
Session 17 Ae Be and Debris Disks: Searches Lead to High Angular Resolution Studies
Poster, Monday, January 10, 2005, 9:20am-6:30pm, Exhibit Hall

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[17.11] Multiband ACS Coronagraphic Imaging of the Debris Disk around \beta Pictoris

D. A. Golimowski (JHU), J. E. Krist (JPL), D. R. Ardila (JHU), M. Clampin (NASA/GSFC), H. C. Ford (JHU), G. D. Illingworth (UCSC/Lick), ACS GTO Team

We present multiband, coronagraphic images of the circumstellar debris disk around the young A5V star \beta Pictoris obtained with the High Resolution Channel of the Hubble Space Telescope's Advanced Camera for Surveys. These B, V, and I band images of the inner region of the disk (30-250 AU from the star) confirm the asymmetries and warps revealed in earlier images recorded by the Space Telescope Imaging Spectrograph and show no significant changes in disk morphology as a function of optical wavelength. We report the first precise measurements of the optical colors of the disk, which allow us to constrain the distribution of grain sizes throughout the observed region of the disk.

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