Author

Mao-Han Zhang

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Review Open access Oct 2026

Detection of a SU UMa-type Dwarf Nova with Long-lived Stage A Superhumps near the Lower Edge of the Period Gap

CXOGBS J174633.4–262314 (CX645), originally identified in the Galactic Bulge Survey, has been proposed as either a cataclysmic variable (CV) or a quiescent low-mass X-ray binary candidate. We present the first analysis of high-precision TESS photometry covering a ∼20 day superoutburst-like event, independently confirme...

Mao-Han Zhang, Sheng-Bang Qian, Qi-Bin Sun et al. · Astrophysical Journal · 0 citations

Review Open access Sep 2026

Eclipse Properties and Superhump Evolution in the SU UMa-type Dwarf Nova Z Cha

The advent of large-scale time-domain surveys provides both opportunities and challenges for understanding accretion disk evolution in cataclysmic variables (CVs). Using high-cadence photometry from the Transiting Exoplanet Survey Satellite (TESS), we investigate the eclipsing SU UMa-type dwarf nova Z Cha. Leveraging e...

Qi-Bin Sun, Sheng-Bang Qian, Li-Ying Zhu et al. · Astrophysical Journal · 0 citations