231 citations · 432 across the 22 of their papers we have counts for
22 papers
Distribution and evolution of Li abundance in red clump stars can be explained by the internal gravity waves
Xuefeng Li, Jianrong Shi, Yan Li +2
The study of Li phenomena in red clump (RC) stars can give us a deeper understanding of the structure and evolution of stars. \citet{2022ApJ...933...58C} explained the RC Li abunda…
Two high-amplitude Scuti- Doradus hybrids constrained by the radial fundamental p and equally spaced g modes
Xinghao Chen, Xiaobin Zhang, Yan Li +1
Based on 2-minute cadence TESS data, we investigate pulsations of TIC 65138566 and TIC 139729335 and discover them to be two new HADS stars with equally spaced g modes. We recogniz…
Asteroseismology of the pulsating extremely low-mass white dwarf SDSS J111215.82+111745.0: a model with -mode pulsations consistent with the observations
Jie Su, Yan Li
SDSS J111215.82+111745.0 is the second pulsating extremely low-mass white dwarf discovered. Two short-period pulsations, 107.56 and 134.275 s, were detected on this star, which wou…
X-ray constraint for the unseen companion of V723 Mon: it is a mass-gap black hole rather than binary neutron stars
Yan Li, Erlin Qiao, Rong-Feng Shen
Recently, the red giant V723 Mon is reported to have an unseen companion with a mass of , but question remains about whether it is a single (thus the so-calle…
OO Dra: an Algol-type binary formed through an extremely helium-poor mass accretion revealed by asteroseismology
Xinghao Chen, Xiaobin Zhang, Yan Li +4
Based on the two-minutes TESS data, we analyzed intrinsic oscillations of the primary component and identified seven confident independent Scuti frequencies (, , $f_3…
Can small-scale magnetic fields be the major cause for the near-surface effect of the solar p-mode frequencies?
Yan Li, Qian-sheng Zhang, Tao Wu +5
Small-scale magnetic fields are not only the fundamental element of the solar magnetism, but also closely related to the structure of the solar atmosphere. The observations have sh…
KIC 10736223: An Algol-type eclipsing binary just undergone the rapid mass-transfer stage
Xinghao Chen, Xiaobin Zhang, Yan Li +5
This paper reports the discovery of an Algol system KIC 10736223 that just past the rapid mass transfer stage. From the light curve and radial-velocity modelling we find KIC 107362…
Exploring the convective core of the hybrid Scuti- Doradus star CoRoT 100866999 with asteroseismology
Xinghao Chen, Yan Li, Xiaobin Zhang
We computed a grid of theoretical models to fit the Scuti frequencies of CoRoT 100866999 detected earlier from the CoRoT timeserials. The pulsating primary star is determined t…
Solar models with convective overshoot, the solar-wind mass loss, and a PMS disk accretion: helioseismic quantities, Li depletion and neutrino fluxes
Qian-Sheng Zhang, Yan Li, Jørgen Christensen-Dalsgaard
Helioseismic observations have revealed many properties of the Sun: the depth and the helium abundance of the convection zone, the sound-speed and the density profiles in the solar…
Asteroseismology of the pre-main-sequence Scuti pulsator IP Persei
Xinghao Chen, Yan Li
A grid of theoretical models are computed to fit the 9 oscillation modes of IP Per detected earlier from a multi-site ground-based campaign. Fitting results show that there are two…
Overshooting in the core helium burning stage of a star using the - model
Yan Li, Xing-hao Chen, Hai-liang Chen
Overshooting and semiconvection are among the most uncertainties in the evolution of massive stars. Complete mixing over a certain distance beyond the convective boundary (Stothers…
Determining the evolutionary stage of the delta Scuti star HIP 80088 with asteroseismology
Xinghao Chen, Yan Li
We have computed a grid of theoretical models to fit the twelve oscillation modes of HIP 80088 observed by K2. HIP 80088 is determined to be a pre-main sequence star, in which CN c…
Convective overshooting in sdB stars using the - model
Yan Li, Xing-hao Chen, He-ran Xiong +3
Mixing in the convective core is quite uncertain in core helium burning stars. In order to explore the overshooting mixing beyond the convective core, we incorporated the - p…
Applications of the - model in stellar evolutionary models
Yan Li
The - model for turbulence was first proposed by Kolmogorov (1942). A new - model for stellar convection was developed by Li (2012), which could reasonably describe tur…
Rotational splitting and asteroseismic modelling of the delta Scuti star EE Camelopardalis
Xinghao Chen, Yan Li
According to the rotational splitting law of g modes, the frequency spectra of EE Cam can be disentangled only with oscillation modes of = 0, 1, and 2. Fifteen sets of rotat…
Exploring the helium core of the delta Scuti star CoRoT 102749568 with asteroseismology
Xinghao Chen, Yan Li, Guifang Lin +2
Based on regularities in rotational splittings, we seek possible multiplets for the observed frequencies of CoRoT 102749568. Twenty-one sets of multiplets are identified, including…
Properties of semi-convection and convective overshooting for massive stars
Cai Yun Ding, Yan Li
Properties of semi-convection and core convective overshooting of stars with 15 and 30 are calculated in the present paper. New methods are used to deal wit…
Asteroseismology of DAV star HS0507+0434B, including the core composition profiles
YanHui Chen, Yan Li
The DAV star, HS0507+0434B, was observed by Fu et al. (2013) in 2007 and from 2009 December to 2010 January. There were a total of six triplets with nearly equal split, which were…
How Many CMEs Have Flux Ropes? Deciphering the Signatures of Shocks, Flux Ropes, and Prominences in Coronagraph Observations of CMEs
Angelos Vourlidas, Ben J. Lynch, Russ A. Howard +1
We intend to provide a comprehensive answer to the question on whether all Coronal Mass Ejections (CMEs) have flux rope structure. To achieve this, we present a synthesis of the LA…
Chemical mixing by turbulent convection in the overshooting region below the convective envelope of RGB stars
X. -J. Lai, Y. Li
Based on the turbulent convection model (TCM), we investigate chemical mixing in the bottom overshooting region of the convective envelope of intermediate-mass stars, focusing on i…
Characteristics of convection and overshooting in RGB and AGB stars
X. -J. Lai, Y. Li
Based on the turbulent convection model (TCM) of Li & Yang (2007), we have studied the characteristics of turbulent convection in the envelopes of 2 and 5M stars at the RGB and AGB…
On the DB gap of white dwarf evolution: effects of hydrogen mass fraction and convective overshooting
Jie Su, Yan Li
We investigate the spectral evolution of white dwarfs by considering the effects of hydrogen mass in the atmosphere and convective overshooting above the convection zone. We notice…