Imaging the Haro 6-10 infrared companion

Chris D. Koresko, Geoffrey A. Blake, Michael E. Brown, Anneila I. Sargent, David W. Koerner

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


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 that 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 1 yr 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.

Original languageEnglish (US)
Pages (from-to)L49-L52
JournalAstrophysical Journal
Issue number1 PART 2
StatePublished - Nov 1 1999


  • Binaries: visual
  • Circumstellar matter
  • Methods: miscellaneous
  • Stars: individual (Haro 6-10)
  • Stars: pre-main-sequence

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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