Near-infrared images of the bipolar nebula OH 0739-14

Journal Article · Wed Feb 01 00:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167146· OSTI ID:6018322

Woodward, C E; Forrest, W J; Pipher, J L; Moneti, A; Shure, M A

One arcsecond resolution IR images have been obtained of the bipolar nebula associated with the late-type star and OH source OH 0739-14. The extent of the disk and the morphology of the nebular regions are deduced from the colors of the equatorial disk region and from the nebulosity. An evacuated axial region is inferred far from the star beyond the intense lobes characterizing the bipolar geometry. Scattering off dust in the bipolar cavity, where shocks are produced by outflowing gas impinging on previously ejected material, is the primary mechanism responsible for the observed radiation. However, the red colors in the lobes require that either a cooler emission source than the bare late-type star provide scattering photons, or that thermal emission from transiently heated ultrasmall dust grains in the lobes contribute to the observed emission at 3.75 microns. 37 references.

• Research Organization: Rochester Univ., NY (USA); C. E. Kenneth Mees Observatory, Rochester, NY (USA)
• OSTI ID: 6018322
• Journal Information: Astrophys. J.; (United States), Vol. 337
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
NEBULAE
NEAR INFRARED RADIATION
CHARGE-COUPLED DEVICES
COSMIC DUST
GAS FLOW
HERBIG-HARO OBJECTS
IMAGES
MASERS
MORPHOLOGY
SCATTERING
SHOCK WAVES
WATER
AMPLIFIERS
DUSTS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUID FLOW
HYDROGEN COMPOUNDS
INFRARED RADIATION
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
OXYGEN COMPOUNDS
RADIATIONS
SEMICONDUCTOR DEVICES
640105* - Astrophysics & Cosmology- Galaxies