Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.205..349w&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 205, Oct. 1983, p. 349-358. Research supported by the S
Astronomy and Astrophysics
Astronomy
12
Astronomical Models, Cosmic Dust, Interstellar Matter, Light Scattering, Nebulae, Brightness, Color, Interstellar Extinction, Optical Reflection, Polarization Characteristics
Scientific paper
A model of the reflection nebula NGC 1999 has been developed, which accounts for the available surface brightness, polarization and color data in terms of multiple scattering of light within a large dust cloud. The results indicate a high albedo for the dust and a low value for the refractive index, possibly due to icy grain mantles. The data are best accounted for if the distribution of grain sizes n(a) is approximately power law with an index -4.24 + or - 0.18 in the approximate size range for a from 0.1 to 0.5 (micron). The observations are consistent with optical interstellar extinction data but the ultraviolet extinction appears to require the index of the power law to be less negative for small grain sizes.
No associations
LandOfFree
Multiple scattering in the reflection nebula NGC 1999 and the nature of interstellar dust does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Multiple scattering in the reflection nebula NGC 1999 and the nature of interstellar dust, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple scattering in the reflection nebula NGC 1999 and the nature of interstellar dust will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1194548