The Ultimate Mid-Life Crisis: Active Accretion of Gas and Dust onto an Old Star

Details The Ultimate Mid-Life Crisis: Active Accretion of Gas and Dust onto an Old Star The Ultimate Mid-Life Crisis: Active Accretion of Gas and Dust onto an Old Star

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50501z&link_type=abstract

Spitzer Proposal ID #50501

Computer Science

Scientific paper

We have discovered that TYC 4144 329 2 is an old, very dusty, rapidly accreting F3.5 star. We believe that this star and its associated gaseous and dusty disk represent an early stage in an evolutionary sequence of a newly identified class of stars. This class of stars is composed of old stars that engulf their short-period companions and, subsequently, go through a phase similar to the classical T Tauri phase of pre-main sequence evolution. In the present proposal we request IRS time to observe TYC 4144 329 2 to chart the evolution of the properties of dust particles in massive young disks around old stars.

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