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Sparse aperture masking at the VLT : I. Faint companion detection limits for the two debris disk stars HD 92945 and HD 141569

Lacour, Sylvestre; Tuthill, Peter G; Amico, P; Ireland, Michael; Ehrenreich, D; Huelamo, N; Lagrange, A-M

Description

Aims. Observational data on companion statistics around young stellar systems is needed to flesh out the formation pathways for extrasolar planets and brown dwarfs. Aperture masking is a new technique that is able to address an important part of this discovery space. Methods. We observed the two debris disk systems HD 92945 and HD 141569 with sparse aperture masking (SAM), a new mode offered on the NaCo instrument at the VLT. A search for faint companions was performed using a detection...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/66717
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201116712

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