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Title:
An Introduction to Scattered-Light Echoes
Authors:
Sugerman, B. E. K.
Publication:
The Nature of V838 Mon and its Light Echo ASP Conference Series, Vol. 324, Proceedings of the conference held 16-19 May, 2006 in Los Concajos, La Palma, Spain. Edited by Romano, L. M. Corradi and Ulisse Munari. San Francisco: Astronomical Society of the Pacific, 2007., p.121
Publication Date:
04/2007
Origin:
ASP
Bibliographic Code:
2007ASPC..363..121S

Abstract

Scattered light echoes offer one of the most effective means to probe the structure and composition of circumstellar and interstellar media. Of note, light echoes provide exact three-dimensional positions of scattering dust. However, they are also very rare, and have only been unambiguously resolved around a handful of sources. I will discuss the history of light echo astronomy, and how they can be used to study the environments around variable stars and cataclysmic events. I will also show results from most of the existing known echo sources, showing how they have been used to map out star's circumstellar environments, probe the disks of galaxies, and determine the distance to variable stars.
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Physics
arXiv e-prints