High velocity H/sub 2/ line emission in the NGC 2071 region

Journal Article · Tue Dec 15 04:00:00 EST 1981 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183699· OSTI ID:5655390

Persson, S E; Geballe, T R; Simon, T; Lonsdale, C J; Baas, F

Emission in the ..nu.. = 1..-->..0 S(1) line of H/sub 2/ at 2.12 ..mu..m has been measured at 20 km s/sup -1/ resolution in the vicinity of the microwave maser and infrared continuum sources north of NGC 2071. The line profile observed near the peak of the extended H/sub 2/ emission region has full width at zero intensity of approx.100 km s/sup -1/, with a prominent blue wing. The NGC 2071 region thus represents the second detection, after OMC-1, of high velocity H/sub 2/ emission in a region showing signs of ongoing star formation. The width of the line may result from a supersonic outflow of gas from within the molecular cloud. By analogy to the core of OMC-1, with which the NGC 2071 region has several characteristics in common, we suggest that the source of the high velocity outflow is an intense stellar wind from an embedded infrared object.

• OSTI ID: 5655390
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 251:2; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GASES
ELEMENTS
EMISSION SPECTRA
FLUID FLOW
FLUIDS
GASES
HYDROGEN
INFRARED SPECTRA
INTERSTELLAR SPACE
LINE WIDTHS
MAPS
MOLECULES
NONMETALS
SPACE
SPECTRA
SPECTROSCOPY
STELLAR WINDS
SUPERSONIC FLOW