Andrews, Sean M.Harris, Robert Jason2013-10-182013-10-182013Harris, Robert Jason. 2013. Protoplanetary Disks in Multiple Star Systems. Doctoral dissertation, Harvard University.http://dissertations.umi.com/gsas.harvard:11194http://nrs.harvard.edu/urn-3:HUL.InstRepos:11181142Most stars are born in multiple systems, so the presence of a stellar companion may commonly influence planet formation. Theory indicates that companions may inhibit planet formation in two ways. First, dynamical interactions can tidally truncate circumstellar disks. Truncation reduces disk lifetimes and masses, leaving less time and material for planet formation. Second, these interactions might reduce grain-coagulation efficiency, slowing planet formation in its earliest stages.en-USAstronomyAstrophysicsBinariesGrain growthProtoplanetary disksThesis or Dissertation2014-04-10