Imaging the Haro 6-10 Infrared Companion

Abstract

We present an infrared imaging study of the low-mass pre-main sequence binary system Haro 6-10. This system is one of a handful in which the optically-visible primary has the characteristics of a normal T Tauri star, while the secondary is a so-called "infrared companion" (IRC), a strongly extincted object which emits most of its luminosity in the infrared. A speckle holographic technique was used to produce nearly diffraction-limited images on three nights over a one-year period starting in late 1997. The images show that the IRC is obscured and surrounded by a compact, irregular, and variable nebula. This structure is in striking contrast to the well-ordered edge-on disk associated with HK Tauri B, the extincted companion to another T Tauri star of similar age. A new, resolved intensity peak was found 0".4 southwest of the IRC. We suggest that it may represent light scattered by a clump of dusty material illuminated by starlight escaping along an outflow-carved cavity in the IRC envelope. The primary star became fainter and the companion became more extended during the observing period.

6 pages, including 2 figures, LaTeX2e, aastex macros

Cited by in corpus (10)

• A Third Star in the T Tauri System
• Warm HCN, C2H2, and CO in the disk of GV Tau
• Imaging the Circumstellar Environments of Young Binaries in Southern Star-Forming Regions
• Exploring organic chemistry in planet-forming zones
• Stellar and Circumstellar Properties of the Pre-Main Sequence Binary GV Tau from Infrared Spectroscopy
• Multi-wavelength observations of the young binary system Haro 6-10: The case of misaligned discs
• Constraining the Disk Masses of the Class I Binary Protostar GV Tau
• The near-infrared and ice-band variability of Haro 6-10
• Warm HCN in the planet formation zone of GV Tau N
• Candidate Coronagraphic Detections of Protoplanetary Disks around Four Young Stars