Computer Science
Scientific paper
Jul 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atnf.prop.2412s&link_type=abstract
ATNF proposal C2057, Semester: July, 2009
Computer Science
Stellar, Atca
Scientific paper
We intend to determine the total dust mass towards the classical T Tauri system CT Cha which belongs to the class of rare systems consisting of a low-mass host star (K7 V) and a wide separated sub-stellar companion with a mass of 12-25 M(Jup). Based on the young age (<2Myr) and the known intense near- to mid-infrared excess, the presence of circumstellar disks is strongly expected surrounding both the host star, and possibly the sub-stellar object too. Present Pa(beta) line emission detected towards the sub-stellar companion as well as temporal variations of the H(alpha) line are interpreted as still on-going mass accretion. Due to difficulties of theoretical models to explain the formation of such systems, these systems are touchstones to prove competing formation scenarios. In order to obtain accurate observationally quantities to characterize the CT Cha system, we propose to map the 3mm dust continuum using the H168 array and the boad band capability of the CABB backend.
Fiedler Simone
Neuhaeuser Ralph
Schmidt Tobias
Schreyer Katharina
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