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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN1.5k papers
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- Centre National de la Recherche ScientifiqueFR138 papers
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95 papers · 1 filter
Low-cost high performance distributed data storage for multi-channel observations
Ying-bo Liu, Feng Wang, Hui Deng +5
The New Vacuum Solar Telescope (NVST) is a 1-m solar telescope that aims to observe the fine structures in both the photosphere and the chromosphere of the Sun. The observational d…
An improved solution to geometric distortion using an orthogonal method
Huan-Wen Peng, Qing-Yu Peng, Na Wang
The geometric distortion of CCD field of view has direct influence on the positional measurements of CCD observations. In order to obtain high precision astrometric results, the ge…
Chromospheric activity on the late-type star V1355 Ori using Lijiang 1.8-m and 2.4-m telescopes
Qing-Feng Pi, Li-Yun Zhang, Liang Chang +4
We obtained new high-resolution spectra using the Lijiang 1.8-m and 2.4-m telescopes to investigate the chromospheric activities of V1355 Ori as indicated in the behaviors of Ca ii…
Discerning the -ray emitting region in the flat spectrum radio quasars
Y. G. Zheng, C. Y. Yang, L. Zhang +1
A model-dependent method is proposed to determine the location of the -ray emitting region for a given flat spectrum radio quasar (FSRQ). In the model, the extra-relativistic el…
The Broken Lane of a Type II Radio Burst Caused by Collision of a Coronal Shock with a Flare Current Sheet
Guannan Gao, Min Wang, Ning Wu +3
We investigated a peculiar metric type II solar radio burst with a broken lane structure, which was observed on November 13, 2012. In addition to the radio data, we also studied th…
Astrochemical Properties of Planck Cold Clumps
Ken'ichi Tatematsu, Tie Liu, Satoshi Ohashi +25
We observed thirteen Planck cold clumps with the James Clerk Maxwell Telescope/SCUBA-2 and with the Nobeyama 45 m radio telescope. The NH distribution obtained with the Nob…
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…
Chromospheric activity on late-type star DM UMa using high-resolution spectroscopic observations
LiYun Zhang, QingFeng Pi, Xianming L. Han +2
We present new 14 high-resolution echelle spectra to discuss the level of chromospheric activity of DM UMa in {He I} D3, {Na I} D1, D2, Halpha, and {Ca II} infrared triplet lines (…
Revisiting the structure and spectrum of the magnetic-reconnection-heated corona in luminous AGNs
J. Y. Liu, ErLin Qiao, B. F. Liu
It is believed that the hard X-ray emission in the luminous active galactic nuclei (AGNs) is from the hot corona above the cool accretion disk. However, the formation of the corona…
A low-mass-ratio and deep contact binary as the progenitor of the merger V1309 Sco
Li-Ying Zhu, Er-Gang Zhao, Xiao Zhou
Nova Sco 2008 (=V1309 Sco) is an example of a V838 Mon type eruption rather than a typical classical nova. This enigmatic object was recently shown to have resulted from the merger…
Simultaneous longitudinal and transverse oscillation in an active filament
V. Pant, R. Mazumder, D. Yuan +3
We report on the co-existence of longitudinal and transverse oscillations in an active filament. On March 15 2013, a M1.1 class flare was observed in the active region AR 11…
Numerical integral of resistance coefficients in diffusion
Q. S. Zhang
The resistance coefficients in screen Coulomb potential of stellar plasma are evaluated in high accuracy. I have analyzed the possible singularities in the integral of scattering a…
Heating mechanisms in the low solar atmosphere through magnetic reconnection in current sheets
Lei Ni, Jun Lin, Ilia I. Roussev +1
We simulate several magnetic reconnection processes in the low solar chromosphere/photosphere, the radiation cooling, heat conduction and ambipolar diffusion are all included. Our…
Revisiting Quasi-Periodic modulation in -ray Blazar PKS 2155-304 with Fermi Pass 8 data
Pengfei Zhang, Dahai Yan, Nenghui Liao +1
We examine the gamma-ray quasi-periodic variability of PKS 2155-304 with the latest publicly available \emph{Fermi}-LAT Pass 8 data which covers the years from 2008 August to 2016…
Candidates of eclipsing multiples based on extraneous eclipses on binary light curves: KIC 7622486, KIC 7668648, KIC 7670485 and KIC 8938628
Jia Zhang, Sheng-Bang Qian, Jian-Duo He
Four candidates of eclipsing multiples, based on new extraneous eclipses found on Kepler binary light curves, are presented and studied. KIC 7622486 is a double eclipsing binary ca…
Discovery of a Redback Millisecond Pulsar Candidate: 3FGL J0212.1+5320
Kwan-Lok Li, Albert K. H. Kong, Xian Hou +4
We present a multi-wavelength study of the unidentified Fermi object, 3FGL J0212.1+5320. Within the 95% error ellipse, Chandra detects a bright X-ray source (i.e., F(0.5-7keV) = 1.…
MiNDSTEp differential photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756: Microlensing and a new time delay
E. Giannini, R. W. Schmidt, J. Wambsganß +52
We present V and R photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756. The data were taken by the MiNDSTEp collaboration with the 1.54 m Danish telescope…
The core-degenerate scenario for the progenitors of type Ia supernovae
Bo Wang, Weihong Zhou, Zhaoyu Zuo +5
The origin of the progenitors of type Ia supernovae (SNe Ia) is still uncertain. The core-degenerate (CD) scenario has been proposed as an alternative way for the production of SNe…
Perfect fluid dark matter influence on thermodynamics and phase transition for a Reissner-Nordstrom-anti-de Sitter black hole
Zhaoyi Xu, Xian Hou, Jiancheng Wang +1
Based on Reissner-Nordstrom-anti-de Sitter(RN-AdS) black hole surrounded by perfect fluid dark matter, we study the thermodynamics and phase transition by extending the phase space…
Thermodynamics and phase transition in rotational Kiselev black hole
Zhaoyi Xu, Yi Liao, Jiancheng Wang
In this work, we investigate the thermodynamic properties of rotational Kiselev black holes (KBH). Specifically, we use the first-order approximation of the event horizon (EH) to c…
KIC 8262223: A Post-Mass Transfer Eclipsing Binary Consisting of a Delta Scuti Pulsator and a Helium White Dwarf Precursor
Zhao Guo, Douglas R. Gies, Rachel A. Matson +3
KIC~8262223 is an eclipsing binary with a short orbital period ( d). The {\it Kepler} light curves are of Algol-type and display deep and partial eclipses, ellipsoidal vari…
Dependence of the broad Fe K line on the physical parameters of AGN
Zhu Liu, Weimin Yuan, Youjun Lu +3
In this paper, the dependence of the broad Fe K line on the physical parameters of AGN, such as the black hole mass , accretion rate (equivalently represented by Eddingt…
A possible formation channel for blue hook stars in globular cluster - II. Effects of metallicity, mass ratio, tidal enhancement efficiency and helium abundance
Zhenxin Lei, Gang Zhao, Aihua Zeng +4
Employing tidally enhanced stellar wind, we studied in binaries the effects of metallicity, mass ratio of primary to secondary, tidal enhancement efficiency and helium abundance on…
The physical properties of \textit{Fermi} TeV BL Lac objects jets
N. Ding, X. Zhang, D. R. Xiong +1
We investigate the physical properties of \textit{Fermi} TeV BL Lac objects jets by modeling the quasi-simultaneous spectral energy distribution of 29 \textit{Fermi} TeV BL Lacs in…