Spatially extended 10 micron emission from the infrared reflection nebula GSS30

Details Spatially extended 10 micron emission from the infrared reflection nebula GSS30 Spatially extended 10 micron emission from the infrared reflection nebula GSS30

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97..924c&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, Oct. 1985, p. 924-929. NSF-supported research.

Astronomy and Astrophysics

Astronomy

4

Infrared Photometry, Infrared Radiation, Reflection Nebulae, Astronomical Maps, Brightness Distribution, Magnitude

Scientific paper

A surface brightness map and point-wise photometry at 10 μm of the infrared reflection nebula GSS30 were made with the Wyoming 2.3 m telescope. Extended emission is detected as far as 10 arc seconds north of the illuminating star, IRS 1. 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 μm flux is due to scattering, then grains with a radius of 1.6 μm are required. Alternatively, the 10 μm flux is consistent with the flux expected from the unidentified IR emission features at 7.7, 8.6, and 11.3 μm.

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