Far-ultraviolet Observations of the Taurus-Perseus-Auriga Complex
Tae-Ho Lim, Kyoung-Wook Min, and Kwang-Il Seon

TL;DR
This study maps the far-ultraviolet continuum of the Taurus-Perseus-Auriga complex, analyzes dust scattering properties, and estimates cloud geometries using Monte Carlo radiative transfer modeling.
Contribution
It introduces a combined FUV map from GALEX and FIMS data, and develops a Monte Carlo model to determine dust properties and cloud structures in the complex.
Findings
Estimated dust albedo as 0.42
Determined phase function asymmetry factor around 0.47
Derived distances and thicknesses of clouds consistent with previous observations
Abstract
We have constructed a far-ultraviolet (FUV) continuum map of the Taurus-Auriga-Perseus complex, one of the largest local associations of dark clouds, by merging the two data sets of GALEX and FIMS, which made observations at similar wavelengths. The FUV intensity varies significantly across the whole region, but the diffuse FUV continuum is dominated by dust scattering of stellar photons. A diffuse FUV background of 1000 CU is observed, part of which may be attributable to the scattered photons of foreground FUV light, located in front of the thick clouds. The fluorescent emission of molecular hydrogen constitutes 10% of the total FUV intensity throughout the region, generally proportional to the local continuum level. We have developed a Monte Carlo radiative transfer code and applied it to the present clouds complex to obtain the optical properties of dust grains and the…
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Taxonomy
TopicsAstrophysics and Star Formation Studies · Atmospheric Ozone and Climate · Spectroscopy and Laser Applications
