An infrared study of orion molecular cloud-2 (OMC-2)

J. J. Johnson; R. D. Gehrz; T. J. Jones; J. A. Hackwell; G. L. Grasdalen

doi:10.1086/115533

An infrared study of orion molecular cloud-2 (OMC-2)

J. J. Johnson, R. D. Gehrz, T. J. Jones, J. A. Hackwell, G. L. Grasdalen

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Abstract

We report 1.2-23 μm 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.

Original language	English (US)
Pages (from-to)	518-529
Number of pages	12
Journal	Astronomical Journal
Volume	100
Issue number	2
DOIs	https://doi.org/10.1086/115533
State	Published - Aug 1990

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abstract = "We report 1.2-23 μm 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.",

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year = "1990",

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AU - Gehrz, R. D.

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AU - Hackwell, J. A.

AU - Grasdalen, G. L.

PY - 1990/8

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AB - We report 1.2-23 μm 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.

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An infrared study of orion molecular cloud-2 (OMC-2)

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