Forming the Dusty Ring in HR4796A

SJ Kenyon, Kenneth Wood, BA Whitney, MJ Wolff

Research output: Contribution to journalArticlepeer-review


We describe planetesimal accretion calculations for the dusty ring observed in the nearby AO star HR 4796A. Models with initial masses of 10-20 times the minimum-mass solar nebula produce a ring with a width of 7-15 AU and a height of 0.3-0.6 AU at 70 AU in similar to 10 Myr. The ring has a radial optical depth of similar to 1. These results agree with limits derived from infrared images and from the excess infrared luminosity.

Original languageEnglish
Pages (from-to)L119
Number of pages5
JournalAstrophysical Journal
Publication statusPublished - 20 Oct 1999


  • circumstellar matter
  • planetary systems
  • solar system : formation
  • stars : formation
  • stars : individual (HR 4796A)
  • GAS
  • AGE


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