27 citations · 215 across the 23 of their papers we have counts for
24 papers
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…
Precise Asteroseismology of the High-amplitude Delta Scuti Star EH Librae, an AE UMa Analogue in the Hertzsprung Gap
Xiran Xie, Jianning Fu, Gang Meng +7
A subclass of intermediate mass variables Delta Scuti stars, known as High-amplitude Delta Scuti (HADS) stars, exhibits pronounced radial pulsations with high amplitudes. The groun…
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…
Possible Dark Matter Signals from White Dwarfs
Jia-Shu Niu, Hui-Fang Xue
In our galaxy, the white dwarfs (WDs) will inevitably capture the dark matter (DM) particles streaming through them, if there exist interactions between DM particles and nuclei/ele…
Unveiling the Intricate Symphony of Nonlinear Pulsation Mode Interactions in High-Amplitude Scuti Stars
Jia-Shu Niu, Hui-Fang Xue
People can diagnose the interiors of stars by sensing their pulsations. Pulsation modes, which are determined by the internal state and structure of a star, are typically considere…
Pulsation Analysis of High-Amplitude Scuti Stars with TESS
Wangjunting Xue, Jia-Shu Niu, Hui-Fang Xue +1
In this work, the pulsation analysis is performed on 83 high-amplitude Scuti stars, which have been observed by the Transiting Exoplanet Survey Satellite (TESS). The results sh…
Uncorrelated Amplitude and Frequency Variations of the Harmonics in SX Phoenicis Star XX Cygni
Jia-Shu Niu, Yue Liu, Hui-Fang Xue
Harmonics are quite common in pulsating stars, and they are always considered to mimic the behaviors of their independent parent pulsation modes and not taken as the key informatio…
Precise Evolutionary Asteroseismology of High-Amplitude δ Scuti Star AE Ursae Majoris
Hui-Fang Xue, Jia-Shu Niu, Jian-Ning Fu
Stellar structure and evolution theory is one of the basis in modern astronomy. Stellar inner structures and their evolutionary states can be precisely tested by asteroseismology,…
A rapidly evolving high-amplitude Scuti star crossing the Hertzsprung Gap
Jia-Shu Niu, Hui-Fang Xue
In this work, we report the discovery of the rapidly evolving high-amplitude Scuti star KIC 6382916 (J19480292+4146558) which is crossing the Hertzsprung gap. According to the…
DY Pegasi: An SX Phoenicis Star in a Binary System with an Evolved Companion
Hui-Fang Xue, Jia-Shu Niu
In this work, the photometric data from the American Association of Variable Star Observers are collected and analyzed on the SX Phoenicis star DY Pegasi (DY Peg). From the frequen…
Comment on "Probing the Dark Matter-Electron Interactions via Hydrogen-Atmosphere Pulsating White Dwarfs''
Jia-Shu Niu, Hui-Fang Xue
In Phys. Rev. D 98, 103023 (2018), a novel scenario was proposed to probe the interactions between dark matter (DM) particles and electrons, via hydrogen-atmosphere pulsating white…
Precise determination of stellar parameters of the ZZ Ceti and DAZ white dwarf GD 133 through asteroseismology
J. -N. Fu, G. Vauclair, J. Su +15
An increasing number of white dwarf stars show atmospheric chemical composition polluted by heavy elements accreted from debris disk material. The existence of such debris disks st…
Some new hints on cosmic-ray propagation from AMS-02 nuclei spectra
Jia-Shu Niu, Hui-Fang Xue
In this work, we considered 2 schemes (a high-rigidity break in primary source injections and a high-rigidity break in diffusion coefficient) to reproduce the newly released AMS-02…
NGC 1893: a young open cluster rich in multi-type variable stars
Hui-Fang Xue, Jian-Ning Fu, Nami Mowlavi +4
In this work, we have studied the variable stars in the young open cluster NGC 1893 based on a multi-year photometric survey covering a sky area around the cluster up to $31' \time…
Bayesian analysis of the hardening in AMS-02 nuclei spectra
Jia-Shu Niu, Tianjun Li, Hui-Fang Xue
Based on the precise nuclei data released by AMS-02, we study the spectra hardening of both the primary (proton, helium, carbon, oxygen, and the primary component of nitrogen) and…
Asteroseismology of the Double-Mode High-Amplitude Scuti Star VX Hydrae
Hui-Fang Xue, Jian-Ning Fu, L. Fox-Machado +11
Bi-site time-series photometric and high-resolution spectroscopic observations were made for the double-mode high-amplitude Scuti star VX\ Hya. The fundamental frequency $f_{0}…
Bayesian analysis of the break in DAMPE lepton spectra
Jia-Shu Niu, Tianjun Li, Ran Ding +3
Recently, DAMPE has released its first results on the high-energy cosmic-ray electrons and positrons (CREs) from about GeV to TeV, which directly detect a break at $\sim…
Star-disk interactions in multi-band photometric monitoring of the classical T Tauri star GI Tau
Zhen Guo, Gregory J. Herczeg, Jessy Jose +16
The variability of young stellar objects is mostly driven by star-disk interactions. In long-term photometric monitoring of the accreting T Tauri star GI Tau, we detect extinction…
Probing the dark matter-electron interactions via hydrogen-atmosphere pulsating white dwarfs
Jia-Shu Niu, Tianjun Li, Weikai Zong +2
In this work, we propose a novel scenario to probe the interactions between dark matter (DM) particles and electrons, via hydrogen-atmosphere pulsating white dwarfs (DAVs) in globu…
Constrain the Dark Matter Electron Cross Section from Pulsating White Dwarfs
Jia-Shu Niu, Weikai Zong, Hui-Fang Xue
We propose a novel and feasible method to detect dark matter (DM) electron interaction via pulsating white dwarfs (WDs) in the central region of globular clusters. Annihilation of…
Whether the Classical O-C Diagram can be used to Multi-mode Pulsators
Jia-Shu Niu, Yang Wang, Jian-Ning Fu +1
O-C diagram is a useful technique to analyse the period changes of a pulsator by using the maximum (or minimum) value points which have been obtained from the historical data. But…
AE Ursae Majoris -- a Scuti Star in the Hertzsprung Gap
Jia-Shu Niu, Jian-Ning Fu, Yan Li +7
We analyze the photometric data and spectroscopic data that collect on the Scuti star AE UMa. The fundamental and the first overtone frequencies are confirmed as $f_{0} = 11.62…