Do massive primoridial disks evolve into massive debris disks?

Details Do massive primoridial disks evolve into massive debris disks? Do massive primoridial disks evolve into massive debris disks?

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50554s&link_type=abstract

Spitzer Proposal ID #50554

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Scientific paper

A strong link between primordial circumstellar disks and stellar rotation has been established recently from Spitzer IRAC observations of young stars in Orion and NGC 2264. A larger percentage of stars with excess IR emission is seen among slower rotators than among fast rotators. This has been interpreted to indicate that stars with more prominent disks lose their angular momentum via a 'disk locking' mechanism and become slow rotators. If stars with massive primoridial disks evolve into massive debris disks, then massive debris disks should be more frequent among slow rotators. On the other hand, stars that have lost their disks early or are born with much less massive disks could spin-up freely and become fast rotators, hence weak debris excess or non-excess stars at later stage. With the established link between stellar rotation and primordial disks and with sensitive MIPS 24/70 data for a large sample of post-accretion phase young stars, we can now test, observationally, whether massive prolonged primordial disks evolve into massive debris disks.

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