Title

The shadow echoes of UW Cen

Document Type

Conference Proceeding

Publication Date

11-28-2005

Abstract

UW Cen is unique among the cool R Coronae Borealis (RCB) stars in having a visible circumstellar shell. The central star acts like a "lighthouse, " shining through gaps between the near-star dust clouds, and lighting up different portions of the outer nebula. We have obtained HST/ACS images of the UW Cen nebula taken at 5 epochs in 2004. We are using the light echo to calculate an accurate distance to UW Cen and to map out the pattern of dust clouds forming near the star. © 2005 American Institute of Physics.

Publication Source (Journal or Book title)

AIP Conference Proceedings

First Page

180

Last Page

182

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