X-ray Pulsations in the Supersoft X-ray Binary CAL 83

Abstract

X-ray data reveal that the supersoft X-ray binary CAL 83 exhibits 38.4 minute pulsations at some epochs. These X-ray variations are similar to those found in some novae and are likely to be caused by nonradial pulsations the white dwarf. This is the first detection of pulsations in a classical supersoft X-ray binary.

revised text; 11 pages and 3 figures; accepted for publication in the Astronomical Journal

References in corpus (5)

• An Overview of the Performance and Scientific Results from the Chandra X-Ray Observatory (CXO)
• The Extraordinary X-ray Light Curve of the Classical Nova V1494 Aquilae (1999 #2) in Outburst: The Discovery of Pulsations and a "Burst"
• NLTE Model Atmosphere Analysis of the LMC Supersoft X-ray Source CAL 83
• X-Ray Off States and Optical Variability in CAL 83
• A Revised Ephemeris and FUSE Observations of the Supersoft X-ray Source CAL 83

Cited by in corpus (9)

• The Super-Soft X-ray Phase of Nova RS Ophiuchi 2006
• Helium Nova on a Very Massive White Dwarf -- A Light Curve Model of V445 Puppis (2000) Revised
• Obscuration effects in Super-Soft-Source X-ray spectra
• XMM-Newton discovery of 217 s pulsations in the brightest persistent supersoft X-ray source in M31
• Non-Radial Pulsations in Post-Outburst Novae
• Astrophysics in 2006
• Multiwavelength search for counterparts of supersoft X-ray sources in M31
• Revisiting multiwavelength data on the supersoft X-ray source CAL 83
• X-ray stellar population of the LMC