Abstract
view Abstract Citations (76) References (34) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Interstellar grain size. II. Infrared photometry and polarization in Orion. Breger, M. ; Gehrz, R. D. ; Hackwell, J. A. Abstract Infrared colors, polarization wavelength dependence and criteria for cluster membership are used to examine the interstellar extinction law in the Orion region, in light of 0.36-0.82 micron linear polarimetry and infrared photometry observations of stars within a degree of the Orion Nebula. The stars inside the dust clouds are examined on a star-by-star basis, and the different intracluster grain size indicators are found to be in excellent agreement. Normal radius and maximum wavelength values of about 3.0 and 0.55 microns are observed in stars lying outside the two main regions of nebulosity, indicating normal grain sizes. For a carefully selected group of stars inside the nebulosity that is characterized by extinction by large interstellar grains, the circumstellar emission does not significantly affect the values of R derived from the V-K and V-L colors. Publication: The Astrophysical Journal Pub Date: September 1981 DOI: 10.1086/159225 Bibcode: 1981ApJ...248..963B Keywords: Astronomical Photometry; Cosmic Dust; Infrared Astronomy; Infrared Photometry; Interstellar Extinction; Orion Nebula; Polarimetry; Astronomical Catalogs; Grains; Polarization Characteristics; Size (Dimensions); Astronomy full text sources ADS | data products SIMBAD (114)
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