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Spatially extended 10 micron emission from the infrared reflection nebula GSS30 (1985)

Gehrz, R. D. ; Hackwell, J. A. ; Grasdalen, G. L. ; [et al.]

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Publication Date: 2011-08-19

Description: A surface brightness map and point-wise photometry at 10 microns of the infrared reflection nebula GSS30 were made with the Wyoming 2.3-m telescope. Extended emission is detected as far as 10 arcsec north of the illuminating star, IRS1. The photometry shows that the nebular surface brightness is a factor of three more than that expected from thermal emission from dust grains. If the 10 micron flux is due to scattering, then grains with a radius of 1.6 microns are required. Alternatively, the 10 micron flux is consistent with the flux expected from the unidentified IR emission features at 7.7, 8.6, and 11.3 microns.

Keywords: ASTROPHYSICS

Type: Astronomical Society of the Pacific, Publications (ISSN 0004-6280); 97; 924-929

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