54 citations · 256 across the 25 of their papers we have counts for
25 papers
The dusty red supergiant progenitor and the local environment of the Type II SN 2023ixf in M101
Ze-Xi Niu, Ning-Chen Sun, Justyn R. Maund +3
As one of the closest supernovae (SNe) in the last decade, SN 2023ixf is an unprecedented target to investigate the progenitor star that exploded. However, there is still significa…
Photometric calibration of the Stellar Abundance and Galactic Evolution Survey (SAGES): Nanshan One-meter Wide-field Telescope g, r, and i band imaging data
Kai Xiao, Haibo Yuan, Bowen Huang +16
In this paper, a total of approximately 2.6 million dwarfs were constructed as standard stars, with an accuracy of about 0.01-0.02 mag for each band, by combining spectroscopic dat…
A catalogue and statistical analysis for magnetic stars
Abdurepqet Rustem, Guoliang Lv, Jinzhong Liu +5
Magnetic fields are significant in the structure and evolution of stars. We present a comprehensive catalogue of 1784 known magnetic stars, detailing their identifications, HD numb…
Variable stars detection in the field of open cluster NGC 188
Fang-Fang Song, Hu-Biao Niu, Ali Esamdin +2
This work presents the charge-coupled device (CCD) photometric survey of the old open cluster NGC 188. Time-series V-band photometric observations were conducted for ten nights in…
Cluster aggregates surrounding Pismis 5 in the Vela Molecular Ridge
Ming Feng Qin, Yu Zhang, Jinzhong Liu +5
Context. In the Gaia era, the precision of astrometric data is unprecedented. High-quality data make it easier to find more cluster aggregates and support further confirmation of t…
First Detailed Analysis of a Relatively Deep, Low Mass-ratio Contact Binary: ATO J108.6991+27.8306
Shuo Ma, Jinzhong Liu, Yu Zhang +3
We present the first detailed photometric analysis of ATO J108.6991+27.8306 (hereinafter as J108). The short-period close binary J108 was observed by the Nanshan 1 m Wide Field Tel…
Photometric properties and stellar parameters of the rapidly rotating magnetic early-B star HD 345439
Dong-Xiang Shen, Jin-Zhong Liu, Chun-Hua Zhu +8
We first present the multicolor photometry results of the rapidly rotating magnetic star HD 345439 using the Nanshan One-meter Wide-field Telescope. From the photometric observatio…
A Low-speed Intruder Star in Hyades: A Temporary Residence
Qingshun Hu, Yu Zhang, Ali Esamdin +4
We hereby report a low-speed (about~21~km~s with respect to the Sun) intruder member in the Hyades cluster based on the data in the literature. The results show that…
A photometric study of two contact binaries: CRTS J025408.1+265957 and CRTS J012111.1+272933
S. Ma, J. Z. Liu, Y. Zhang +2
We performed new photometric observations for two contact binaries (i.e., CRTS J025408.1+265957 and CRTS J012111.1+272933), which were observed by the 1.0-m telescope at Xingjiang…
Searching for Variable Stars in the Open Cluster NGC 2355 and Its Surrounding Region
Hong Wang, Yu Zhang, Xiangyun Zeng +4
We have investigated the variable stars in the field surrounding NGC 2355 based on the time-series photometric observation data. More than 3000 CCD frames were obtained in the V ba…
Simultaneous Detection of Optical Flares of the Magnetically Active M Dwarf Wolf 359
Han-Tang Lin, Wen-Ping Chen, Jinzhong Liu +13
We present detections of stellar flares of Wolf\,359, an M6.5 dwarf in the solar neighborhood (2.41~pc) known to be prone to flares due to surface magnetic activity. The observatio…
Decoding the Morphological Evolution of Open Clusters
Qingshun Hu, Yu Zhang, Ali Esamdin
Base on Gaia Second Data Release and the combination of nonparametric bivariate density estimation with the least square ellipse fitting, we derive the shape parameters of the samp…
Deciphering Star Cluster Evolution by Shape Morphology
Qingshun Hu, Yu Zhang, Ali Esamdin +2
We analyze the morphological evolution of open clusters and provide shape parameters for 265 open clusters. The results show that the overall shape of sample clusters becomes more…
Investigating Variable Stars in the Open Cluster NGC 1912 and Its Surrounding Field
Chunyan Li, Ali Esamdin, Yu Zhang +6
In this work, we studied the variable stars in the open cluster NGC 1912 based on the photometric observations and DR2 data. More than 3600 CCD frames in B, V, R filters wer…
Diagnosing the Stellar Population and Tidal Structure of the Blanco1 Star Cluster
Yu Zhang, Shih-Yun Tang, W. P. Chen +2
We present the stellar population, using {\it Gaia}\,DR2 parallax, kinematics, and photometry, of the young (~Myr), nearby (~pc) open cluster, Blanco1. A total…
An optical and X-ray study of the contact binary, BH Cassiopeiae
Junhui Liu, Ali Esamdin, Yu Zhang +10
We present the revised and high quality CCD time series observations in 2017 and 2018 of the W UMa-type contact binary BH~Cas. The combination of our new determinations of minimum…
Pulsations of the SX Phe Star BL Camelopardalis
Peng Zong, Ali Esamdin, Jian Ning Fu +6
We carried out photometric observations of the SX Phe star BL Cam in 2014, 2017 and 2018 using Nanshan 1-m telescope. In addition to the dominated frequency of 25.5790(3) cd…
Diagnosing the Clumpy Protoplanetary Disk of the UXor Type Young Star GM Cephei
P. C. Huang, W. P. Chen, M. Mugrauer +29
UX Orionis stars (UXors) are Herbig Ae/Be or T Tauri stars exhibiting sporadic occultation of stellar light by circumstellar dust. GM\,Cephei is such a UXor in the young (~M…
A study of variable stars in the open cluster NGC 1582 and its surrounding field
Fang-Fang Song, Ali Esamdin, Lu Ma +4
This paper presents the Charge-Coupled Device time-series photometric observations of the open cluster NGC 1582 and its surrounding field with Johnson B, V and R filters by using N…
The effects of binary interactions on parameter determinations for early-type galaxies
Yu Zhang, Jinzhong Liu, Fenghui Zhang
Based on stellar population models without (SSP) and with (BSP) binary interactions, we investigate the effects of binary interactions on parameter determinations for early-type ga…
Gravitational-wave radiation from double compact objects with eLISA in the Galaxy
Jinzhong Liu, Yu Zhang
The phase of in-spiral of double compact objects (DCOs: NS+WD, NS+NS, BH+NS, and BH+BH binaries) in the disk field population of the Galaxy provides a potential source in the frequ…
The gravitational wave signal from isolated objects
Jinzhong Liu, Yu Zhang
According to the theoretical study, a deformation object (e.g., a spinning non-axisymmetric pulsar star) will radiate a gravitational wave (GW) signal during an accelaration motion…
The Evolution and Star Formation History of M33
Xiaoyu Kang, Ruixiang Chang, Jun Yin +4
We construct a parameterized model to explore the main properties of the star formation history of M33. We assume that the disk originates and grows by the primordial gas infall an…
Determining gravitational wave radiation from close galaxy pairs using a binary population synthesis approach
Jinzhong Liu, Yu Zhang, Hailong Zhang +2
Context. The early phase of the coalescence of supermassive black hole (SMBH) binaries from their host galaxies provides a guaranteed source of low-frequency (nHz-Hz) gravitatio…