Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..321..317b&link_type=abstract
Extrasolar Planets: Today and Tomorrow, ASP Conference Proceedings, Vol. 321, held 30 June - 4 July 2003, Institut D'Astrophysiq
Astronomy and Astrophysics
Astrophysics
Scientific paper
We propose that the large photometric variations of KH 15D are due to an eclipsing swarm of solid particles, trapped in a giant gaseous vortex rotating at ˜ 0.2 AU from the star. The efficiency of the capture-in-vortex mechanism easily explains the observed large optical depth. The weaker opacity at mid-eclipse is consistent with a size segregation and a slow concentration of the particles toward the center of the vortex. This dusty structure must extend over ˜ 1/3 of an orbit to account for the long eclipse duration. The estimated size of the trapped particles is found to range from 1 cm to 10 cm, consistent with the grey extinction of the star. The observations of KH 15D support the idea that giant vortices can grow in circumstellar disks and play a central role in planet formation.
Barge Pierre
Viton Maurice
No associations
LandOfFree
A Dusty Vortex around KH 15D ? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Dusty Vortex around KH 15D ?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Dusty Vortex around KH 15D ? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1021895