Optical variability of the Be X-ray binary CPD -29 2176
Published on:
1 November 2023
Primary Category:
Solar and Stellar Astrophysics
Paper Authors:
Clarissa M. Pavao,
Noel D. Richardson,
Jonathan Labadie-Bartz,
Herbert Pablo,
André-Nicolas Chené
Bullets
Key Details
CPD -29 2176 has a nearly pole-on disk geometry
Photometric variability indicates disk buildup every 600-800 days
Orbital period is 59 days
Oscillation frequencies indicate stellar rotation near 1.5 cycles/day
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Optical variability of the Be X-ray binary CPD -29 2176
This paper analyzes optical photometry and spectroscopy of the Be X-ray binary CPD -29 2176. It finds the system has a nearly pole-on disk, with photometric variability indicating disk buildup every 600-800 days. The orbital period is 59 days. Frequency analysis reveals oscillation groups that indicate a stellar rotation rate near 1.5 cycles/day.
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