Infrared reflection nebulae in Orion molecular cloud 2

Technical Report · Sun Jun 01 04:00:00 EDT 1986

OSTI ID:6643664

Pendleton, Y; Werner, M W; Capps, R; Lester, D

New obervations of Orion Molecular Cloud-2 have been made from 1-100 microns using the NASA Infrared Telescope Facility and the Kuiper Airborne Observatory. An extensive program of polarimetry, photometry and spectrophotometry has shown that the extended emission regions associated with two of the previously known near infrared sources, IRS1 and IRS4, are infrared reflection nebulae, and that the compact sources IRS1 and IRS4 are the main luminosity sources in the cloud. The constraints from the far infrared observations and an analysis of the scattered light from the IRS1 nebula show that OMC-2/IRS1 can be characterized by L less than or equal to 500 Solar luminosities and T approx. 1000 K. The near infrared (1-5) micron albedo of the grains in the IRS1 nebula is greater than 0.08.

• Research Organization: National Aeronautics and Space Administration, Moffett Field, CA (USA). Ames Research Center
• OSTI ID: 6643664
• Report Number(s): N-87-13363; NASA-TM-88259; A-86276; NAS-1.15:88259
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALBEDO
CLOUDS
DATA
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
INFORMATION
INFRARED RADIATION
LUMINOSITY
NEBULAE
NUMERICAL DATA
OPTICAL PROPERTIES
PHOTOMETRY
PHYSICAL PROPERTIES
POLARIMETRY
RADIATIONS
SPECTROPHOTOMETRY