HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

The Disk around the Brown Dwarf KPNO Tau 3

Abstract : We present submillimeter observations of the young brown dwarfs KPNO Tau 1, KPNO Tau 3, and KPNO Tau 6 at 450 μm and 850 μm taken with the Submillimetre Common-User Bolometer Array on the James Clerk Maxwell Telescope. KPNO Tau 3 and KPNO Tau 6 have been previously identified as Class II objects hosting accretion disks, whereas KPNO Tau 1 has been identified as a Class III object and shows no evidence of circumsubstellar material. Our 3σ detection of cold dust around KPNO Tau 3 implies a total disk mass of (4.0 ± 1.1) × 10-4 M (assuming a gas to dust ratio of 100:1). We place tight constraints on any disks around KPNO Tau 1 or KPNO Tau 6 of <2.1 × 10-4 M and <2.7 × 10-4 M , respectively. Modeling the spectral energy distribution of KPNO Tau 3 and its disk suggests the disk properties (geometry, dust mass, and grain size distribution) are consistent with observations of other brown dwarf disks and low-mass T-Tauri stars. In particular, the disk-to-host mass ratio for KPNO Tau 3 is congruent with the scenario that at least some brown dwarfs form via the same mechanism as low-mass stars.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03618556
Contributor : Nathalie Pothier Connect in order to contact the contributor
Submitted on : Thursday, March 24, 2022 - 2:07:37 PM
Last modification on : Friday, March 25, 2022 - 4:02:40 AM

Links full text

Identifiers

Collections

Citation

Hannah Broekhoven-Fiene, Brenda Matthews, Gaspard Duchêne, James Di Francesco, Aleks Scholz, et al.. The Disk around the Brown Dwarf KPNO Tau 3. The Astrophysical Journal, 2014, 789, ⟨10.1088/0004-637X/789/2/155⟩. ⟨insu-03618556⟩

Share

Metrics

Record views

5