Millimeter Imaging of the beta Pictoris Debris Disk: Evidence for a Planetesimal Belt

Abstract

We present observations at 1.3 millimeters wavelength of the beta Pictoris debris disk with beam size 4.3 x 2.6 arcsec (83 x 50 AU) from the Submillimeter Array. The emission shows two peaks separated by ~7 arsec along the disk plane, which we interpret as a highly inclined dust ring or belt. A simple model constrains the belt center to 94+/-8 AU, close to the prominent break in slope of the optical scattered light. We identify this region as the location as the main reservoir of dust producing planetesimals in the disk.

9 pages, 2 figures, accepted by ApJL

References in corpus (8)

• HST/ACS Multiband Coronagraphic Imaging of the Debris Disk around Beta Pictoris
• Collisional processes and size distribution in spatially extended debris discs
• Collisional Grooming Models of the Kuiper Belt Dust Cloud
• The Dust and Gas Around beta Pictoris
• First Two-Micron Imaging Polarimetry of Beta Pictoris
• Planets of Beta Pictoris revisited
• Images of Vega Dust Ring at 350 and 450 microns: New Clues to the Trapping of Multiple-Sized Dust Particles in Planetary Resonances
• VLT/NACO coronagraphic observations of fine structures in the disk of beta Pictoris

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