18 citations · 87 across the 20 of their papers we have counts for
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Pulsation harmonics reveal the origin of the century-old Blazhko effect
Jia-Shu Niu
The Blazhko effect -- a quasi-periodic modulation of pulsation amplitude and phase observed in all subtypes of RR Lyrae stars -- has defied physical explanation for over a century.…
Harmonics as a Hidden Window into the Turbulent Convective Envelope of non-Blazhko RRab Stars
Jia-Shu Niu
Harmonics in pulsating stars have traditionally been regarded as mere Fourier artifacts, fully determined by their parent mode. Recent observations of high-amplitude Scuti star…
BE Lyncis: A Pulsating Star in the Most Eccentric Binary with a Massive Unseen Companion
Jia-Shu Niu, Ying Zhang, Hui-Fang Xue
We report the discovery of an exceptionally eccentric binary system, BE Lyncis (BE Lyn), which might host a compact companion with mass . By combining TESS p…
Discovery of resonating integration modes in triple-mode high-amplitude Scuti stars: A new evolutionary phase indicator
Jia-Shu Niu, Hui-Fang Xue
High-amplitude Scuti stars (HADS) that pulsate in their first three radial modes are rare in current samples. Here, we analyse five such triple-mode HADS observed by the Transi…
Period Variation Rates of Four Radial Single-Mode High-Amplitude Delta Scuti Stars
Tian-Fang Ma, Jia-Shu Niu, Hui-Fang Xue
In this work, we present a study on the long time-scale period variations of four single-mode high-amplitude delta Scuti stars (HADS) via the classical analysis. The target H…
Exploring the unexpected: Disharmonized harmonic pulsation modes in high-amplitude Scuti stars
Hui-Fang Xue, Jia-Shu Niu
Harmonics are a ubiquitous feature across various pulsating stars. They are traditionally viewed as mere replicas of the independent primary pulsation modes and have thus been excl…