The Disk around CoKu TAURI/4 : circumbinary, not transitional | Macquarie University ResearchOnline

Home

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/136970

9 Visitors

14 Hits

2 Downloads

Title: The Disk around CoKu TAURI/4 : circumbinary, not transitional
Related: Astrophysical journal. Letters, Vol. 678, No. 1, (2008), p.L59-L62
DOI: 10.1086/588216
Publisher: Institute of Physics Publishing
Date: 2008
Author/Creator: Ireland, M. J
Author/Creator: Kraus, A.L
Description: CoKu Tau/4 has been labeled as one of the very few known transition disk objects-disks around young stars that have their inner disks cleared of dust, arguably as a result of planetary formation. We report aperture-masking inter-ferometry and adaptive optics imaging observations showing that CoKu Tau/4 is in fact a near-equal binary star of projected separation ∼53 mas (∼8 AU). The spectral energy distribution of the disk is then naturally explained by the inner truncation of the disk through gravitational interactions with the binary star system. We discuss the possibility that such "unseen" binary companions could cause other circumbinary disks to be labeled as transitional.
Description: 4 page(s)
Subject Keyword: Brown dwarfs
Subject Keyword: Stars: low-mass
Resource Type: journal article
Organisation: Macquarie University. Dept. of Physics and Astronomy

Macquarie University ResearchOnline