2006/01/18 by P. Shalima, N. V. Sujatha, Jayant Murthy +4 · 11 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Cosmic dust #Galaxies: Formation, Evolution, Phenomena #Milky Way #Nebula #Optics #Orion Nebula #Physics #Reflection nebula #Scattering #Starlight #Stars #Stellar, planetary, and galactic studies #Ultraviolet #astro-ph
paper · pdf · doi:10.1111/j.1365-2966.2006.10071.x
published in Monthly Notices of the Royal Astronomical Society 367(4), 1686-1688 (Oxford University Press) · 4 pages, 4 figures
arxiv created 2006/01/18 · openalex publication_date 2006/02/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have modelled diffuse far-ultraviolet (FUV) spectrum observed by the Far Ultraviolet Spectroscopic Explorer (FUSE) near M42 as the scattering of the starlight from the Trapezium stars by dust in front of the nebula. The dust grains are known to be anomalous in Orion with RV= 5.5 and these are the first measurements of the FUV optical properties of the grains outside of ‘normal’ Milky Way dust. We find an albedo varying from 0.3 ± 0.1 at 912 Å to 0.5 ± 0.2 at 1020 Å which is consistent with theoretical predictions.