An infrared study of Orion Molecular Cloud-2 (OMC-2)

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Astronomical Journal; (USA)

DOI:https://doi.org/10.1086/115533· OSTI ID:6591834

Johnson, J J; Gehrz, R D; Jones, T J; Hackwell, J A; Grasdalen, G L ^[1]

---

1. Minnesota Univ., Minneapolis (USA) The Aerospace Corp., Space Sciences Laboratory, Los Angeles, CA (USA) Wyoming Infrared Observatory, Laramie (USA)

This paper reports 1.2-23 micron photometry for 11 discrete sources in Orion Molecular Cloud-2 (OMC-2). These data, combined with H and K photometric and K polarimetric images, are used to model the cluster sources. Most appear to be young stars of roughly solar mass. Some have circumstellar dust reradiation or reflection nebulosity. A model based on single scattering of light from an exciting star explains some features of the IRS 1 nebula, the largest reflection nebula in OMC-2. However, the red colors and high surface brightness of the IRS 1 nebula require a cool excitation source that is more luminous than far-infrared observations would indicate. 34 refs.

• OSTI ID: 6591834
• Journal Information: Astronomical Journal; (USA), Journal Name: Astronomical Journal; (USA) Vol. 100; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GASES
ELECTROMAGNETIC RADIATION
FLUIDS
GASES
INFRARED RADIATION
INTERSTELLAR SPACE
LUMINOSITY
MASS
MATHEMATICAL MODELS
MOLECULES
NEBULAE
OPTICAL PROPERTIES
PHOTOGRAPHY
PHOTOMETRY
PHYSICAL PROPERTIES
PROTOSTARS
RADIATIONS
SPACE
STELLAR RADIATION