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Binarity as a Key Factor in Protoplanetary Disk Evolution: <i>Spitzer</i> Disk Census of the η Chamaeleontis Cluster

Binarity as a Key Factor in Protoplanetary Disk Evolution: <i>Spitzer</i> Disk Census of the η Chamaeleontis Cluster

The formation of planets is directly linked to the evolution of the circumstellar (CS) disk from which they are born. The dissipation timescales of CS disks are therefore of direct astrophysical importance in evaluating the time available for planet formation. We employ Spitzer Space Telescope spectra to complete the CS …