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Full-Text Articles in Astrophysics and Astronomy
Hd 100453: A Link Between Gas-Rich Protoplanetary Disks And Gas-Poor Debris Disks, K Collins, C Grady, K Hamaguchi, J Wisniewski, Sean Brittain, M Sitko, W Carpenter, J Williams, G Mathews, G Williger, R Van Boekel, A Carmona, Th. Henning, M Van Den Ancker, G Meeus, X Chen, R Petre, B Woodgate
Hd 100453: A Link Between Gas-Rich Protoplanetary Disks And Gas-Poor Debris Disks, K Collins, C Grady, K Hamaguchi, J Wisniewski, Sean Brittain, M Sitko, W Carpenter, J Williams, G Mathews, G Williger, R Van Boekel, A Carmona, Th. Henning, M Van Den Ancker, G Meeus, X Chen, R Petre, B Woodgate
Sean D Brittain
HD 100453 has an IR spectral energy distribution (SED) which can be fit with a power law plus a blackbody. Previous analysis of the SED suggests that the system is a young Herbig Ae star with a gas-rich, flared disk. We reexamine the evolutionary state of the HD 100453 system by refining its age (based on a candidate low-mass companion) and by examining limits on the disk extent, mass accretion rate, and gas content of the disk environment. We confirm that HD 100453B is a common proper motion companion to HD 100453A, with a spectral type of M4.0V-M4.5V, and derive …