Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21741901b&link_type=abstract
American Astronomical Society, AAS Meeting #217, #419.01; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Discs of dust and rocks, analogous to the Solar System's asteroid or Kuiper belt are observed around hundreds of main sequence stars. There are over 400 detections of exoplanets to date around main sequence stars. Very little, however, is known about the fate of planetary systems when the star evolves off the main sequence. Do they survive the star's evolution? Should we be able to detect planetary systems around evolved stars? Hot, dusty discs are observed around a handful of white dwarfs. Can we link these observations with main sequence planetary systems?
I present semi-analytic models that evolve the population of debris discs observed around main sequence A stars through to the white dwarf phase, discussing the effects of stellar evolution on them and their detectability post-main sequence. I also discuss the dynamical implications of stellar mass loss on a planetary systems, with particular reference to the formation of the observed hot dusty discs around white dwarfs.
Bonsor Amy
Wyatt Mark C.
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