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| Paper: |
On the Binary Nature of the SX Phoenicis Star CY Aqr |
| Volume: |
318, Spectroscopically and Spatially Resolving the Components of Close Binary Stars |
| Page: |
346 |
| Authors: |
Fu, J.N.; Sterken, C.; Barrera, L. |
| Abstract: |
Observations of a new time of maximum light of CY Aqr, an extensively-observed SX Phoenicis star, have been investigated in combination with the data presented in the literature for almost 7 decades. The O — C diagram reveals that the long-term period change of CY Aqr can be represented by a linear period change combined with the light-time effect in a highly-eccentric orbit with a period of half a century. The binary nature of CY Aqr is therefore discussed with emphasis on the light-time effect procedure. |
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