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Messenger No63 PDF

84 Pages·2009·English
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by ['European Southern Observatory']| 2009| 84 pages| English

About Messenger No63

This document describes a new 3D extinction map of the Southern Hemisphere Galactic region created using surface brightness measurements of about 12,000 galaxies from the ESO-LV catalog. The technique used a statistical analysis to simultaneously determine the extinction values and the location of the unreddened surface brightness curve. The resulting map has an angular resolution of 3 degrees and estimates extinction in the B-band with an uncertainty of 0.13 magnitudes per galaxy. This new map provides an improved tracer of Galactic extinction compared to previous maps based solely on neutral hydrogen measurements.

Detailed Information

Author:['European Southern Observatory']
Publication Year:2009
Pages:84
Language:English
Format:PDF
Price:FREE
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