Cepheids in Multiple Systems: ADS 14859
Abstract
We have attempted to resolve the system containing the Cepheid V1334 Cyg (=ADS 14859) using both the Faint Object Camera (FOC) and the Fine Guidance Sensor (FGS) on the Hubble Space Telescope, and also using ground-based speckle interferometry with 4 m class instruments. None of these approaches was successful, leading to upper limits of approximately 20 mas (depending on the magnitude difference between the stars). We discuss constraints this places on a possible wide orbit as a guide to future observations.
Based on observations made with the NASA/ESA Hubble Space Telescope at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with programs GO-7478, GO-8440, and GO-8772.- Publication:
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Publications of the Astronomical Society of the Pacific
- Pub Date:
- November 2006
- DOI:
- 10.1086/509791
- Bibcode:
- 2006PASP..118.1545E
- Keywords:
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- Stars: Variables: Cepheids;
- Stars: Binaries: General