Abstract of Junho Shin's Paper
The Distribution of Dust inside the Orion Nebula
Junho Shin & Seung Soo Hong
Department of Astronomy
Seoul National University
Seoul, Korea
ABSTRACT
By inverting the brightness integral for the dust-scattered continuum,
we have determined how the dust grains are distributed inside the Orion
nebula. The scattering characteristics of the Orion dust at a given
wavelength is kept constant within the nebula, and the geometry of the
nebula is assumed to have a hemispherical shape. The resulting radial
distance dependence of the distribution of dust number density shows that
the dust grains are depleted at the central region of the Orion nebula and
concentrated in the region of 5' - 6' away from the Trapezium stars. The
scattering characteristics of the Orion dust are of moderately forward
throwing nature, and the Orion dust has low values of albedo.