Observations of Hierarchical Solar-Type Multiple Star Systems
Abstract
Twenty multiple stellar systems with solar-type primaries were observed at high angular resolution using the PALM-3000 adaptive optics system at the 5 m Hale telescope. The goal was to complement the knowledge of hierarchical multiplicity in the solar neighborhood by confirming recent discoveries by the visible Robo-AO system with new near-infrared observations with PALM-3000. The physical status of most, but not all, of the new pairs is confirmed by photometry in the Ks band and new positional measurements. In addition, we resolved for the first time five close sub-systems: the known astrometric binary in HIP 17129AB, companions to the primaries of HIP 33555, and HIP 118213, and the companions to the secondaries in HIP 25300 and HIP 101430. We place the components on a color–magnitude diagram and discuss each multiple system individually.
Additional Information
© 2015. The American Astronomical Society. Received 2015 March 25; accepted 2015 September 1; published 2015 September 30. We thank D. Latham for the insight he provided on a number of these systems. This paper is based on observations obtained at the Hale Telescope, Palomar Observatory. A portion of the research in this paper was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (NASA). This research made use of the Washington Double Star Catalog maintained at the U.S. Naval Observatory, the SIMBAD database, operated by the CDS in Strasbourg, France and NASA's Astrophysics Data System. This publication made use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by NASA and the National Science Foundation. Facility: Hale (PHARO). -Attached Files
Published - Roberts_2015p130.pdf
Submitted - 1509.00745v1.pdf
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Additional details
- Eprint ID
- 63118
- Resolver ID
- CaltechAUTHORS:20151222-073234728
- NASA/JPL/Caltech
- NSF
- Created
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2015-12-22Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)