The Age of a Stellar System Surrounded by Colliding Planetesimals

Details The Age of a Stellar System Surrounded by Colliding Planetesimals The Age of a Stellar System Surrounded by Colliding Planetesimals

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2116z&link_type=abstract

Chandra Proposal ID #08200925

Physics

Chandra Proposal Id #08200925

Scientific paper

BD+20 307 is, by more than an order of magnitude, the dustiest main sequence star known. The dust appears to have been produced by the violent reduction of the equivalent of a ~300 km diameter object into tiny particles within the last 1000 yr. Such events should be rare in something the age of our solar system, but could have been much more common at earlier epochs. To gain insight into the evolution of solar-type planetary systems, we are proposing to constrain the age of BD +20 307 by measuring its X-ray luminosity.

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