Evolution of Pre-Main Sequence Accretion Disks

Details Evolution of Pre-Main Sequence Accretion Disks Evolution of Pre-Main Sequence Accretion Disks

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002stin...0243798h&link_type=abstract

Technical Report, Smithsonian Astrophysical Observatory Cambridge, MA United States

Astronomy and Astrophysics

Astrophysics

Accretion Disks, Planetary Evolution, Protoplanetary Disks, Gas Giant Planets, Protoplanets, Astronomical Models, Stellar Evolution

Scientific paper

The aim of this project is to develop a comprehensive global picture of the physical conditions in, and evolutionary timescales of, pre-main sequence accretion disks. The results of this work will help constrain the initial conditions for planet formation. To this end we plan to: (1) Develop much larger samples of 3-10 Myr-old stars to provide better empirical constraints on protoplanetary disk evolution; (2) Study the dusty emission and accretion rates in these systems, with ages closer to the expected epoch of (giant) planet formation at 3-10 Myr; and (3) Develop detailed model disk structures consistent with observations to infer physical conditions in protoplanetary disks and to constrain possible grain growth as the first stage of planetesimal formation.

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