Published August 10, 2015
| Submitted + Published
Journal Article
Open
Resolving the Delta Andromedae Spectroscopic Binary with Direct Imaging
Abstract
We present a direct image of the innermost companion to the red giant δ Andromedae using the Stellar Double Coronagraph at the Palomar Observatory. We use a Markov Chain Monte Carlo based algorithm to simultaneously reduce the data and perform astrometry and photometry of the companion. We determine that the companion is most likely a main sequence K-type star and is certainly not the previously hypothesized white dwarf.
Additional Information
© 2015 The American Astronomical Society. Received 2015 April 23; accepted 2015 June 23; published 2015 August 4. We are pleased to acknowledge the Palomar Observatory staff for their excellent support, particularly Steve Kunsman. We greatly benefited from the expert assistance of Rick Burruss (JPL) with the adaptive optics system. We thank the referee for a useful review, particularly for pointing out some discrepancies in our analysis and previous work, which improved the paper. Part of this work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration (NASA). M.B. is supported by a NASA Space Technology Research Fellowship, grant NNX13AN42H.Attached Files
Published - Bottom_2015.pdf
Submitted - 1506.07517v1.pdf
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Additional details
- Eprint ID
- 61238
- Resolver ID
- CaltechAUTHORS:20151016-155237644
- NASA/JPL/Caltech
- NNX13AN42H
- NASA
- Created
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2015-10-16Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field