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September 10, 2025Monthly Notices of the Royal Astronomical SocietyOpen Access

X-ray and optical analysis of the prototype polar AN UMa

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Authors

SOSamet OkEge UniversityMYMelis YardımcıBKB. KalomeniEge University

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Implication

Optical and X-ray analysis reveals changing mass accretion states in a classic cataclysmic variable, suggesting complex interactions.

Key Points

  • Significant changes in the light curve indicate varying accretion states over 34 years of observation.
  • The observations highlight a periodicity of ~437 days that may correlate with long-term changes in accretion states.
  • Analysis from TESS photometry produced a revised photometric period closely matching spectroscopic data.
  • Two short-lived low states of AN UMa were identified, showcasing the system's variability over time.

Cite This Study

Ok et al. (2025) studied this question.

synapsesocial.com/papers/68c1b60654b1d3bfb60eaf7fhttps://doi.org/10.1093/mnras/staf1024
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