Jets and Herbig-Haro objects in the ρ Ophiuchi embedded cluster

M. Gómez, D. P. Stark, B. A. Whitney, E. Churchwell

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


We present results from a near-infrared 2.12 μm survey covering a large portion of the ρ Ophiuchi cloud (three regions of ∼20′ 20′ each, on average) in an effort to improve the detection of embedded molecular hydrogen emission objects in the cloud. We complement these observations with deep optical [S II] images of six areas of 10′ 10′ each. We recovered all previously known optical jets/Herbig-Haro (HH) objects as well as H2 outflows in the region and report the detection of four new HH objects and 13 near-infrared knots. We provide coordinates and describe the morphology of these knots, several of which are identified as belonging to the same flow on the basis of morphological and proximity arguments. We discuss likely exciting sources. A unique association of the driving star is not always possible, as several young stars lie in close proximity to these knots.

Original languageEnglish (US)
Pages (from-to)863-886
Number of pages24
JournalAstronomical Journal
Issue number2 1772
StatePublished - Aug 2003


  • ISM: Herbig-Haro objects
  • ISM: individual (ρ Ophiuchi)
  • ISM: jets and outflows
  • Stars: formation
  • Stars: low-mass, brown dwarfs
  • Stars: pre-main-sequence

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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