Abstract Details
| Name: SATHYANARAYANAN Affiliation: AMRITA UNIVERSITY Conference ID: ASI2016_534 Title : Diffuse Ultra-Violet Radiation from Taurus Molecular Cloud Authors and Co-Authors : Jayant Murthy (IIA, Banglore), Narayanankutty K (Amrita University, Kerala), Sujatha N.V (St. Xavier's College, Kerala) Abstract Type : Poster Abstract Category : Stars, The Milky Way Galaxy and its neighbours Abstract : We analysed diffuse ultra-violet radiation from the Taurus Molecular cloud (TMC) at two different wavelengths (1500A, 2300A) with the latest Galaxy Evolution Explorer (GALEX) observations . We confirmed the observed anti correlation in the region between the diffuse radiation and the dust extinction by Hurwitz 1990; Lee et al. 2006 and Lim et al. 2013. As part of analyzing dust scattered radiation in this region, we studied dust distribution in TMC and observed that the Planck's reddening map (Planck Collaboration et al. 2011) is a better option over the most widely used Schlegel et al. 1998 map and the recently released 3D dust map by Green et al. 2015. Our Monte Carlo dust scattering code shows very little radiation originate behind the cloud. The total flux in the region is contributed by a number of stars and the level of scattered radiation is insensitive to the phase function asymmetry factor 'g'. We claim that the observed anti-correlation is not due to shadowing by thick molecular cloud, but purely coincidental. |