Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Kai-Fan Ji"'
To address the problem of the low accuracy of transverse velocity field measurements for small targets in high-resolution solar images, we proposed a novel velocity field measurement method for high-resolution solar images based on PWCNet. This metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d845ba1db6cdec68f7b0788100f5c8b6
http://arxiv.org/abs/2304.03909
http://arxiv.org/abs/2304.03909
Publikováno v:
Publications of the Astronomical Society of Japan. 73:1486-1496
An open cluster is an ideal region to study the evolution of stars. In this work, we use Gaia Early Data Release 3 (Gaia EDR3) to derive the fundamental parameters of 30 faint open clusters listed in the catalogue given by Cantat-Gaudin et al. (2018,
Publikováno v:
Publications of the Astronomical Society of Japan. 73:786-794
Contact binary stars are important research objects in astrophysics. The calculation speed of deriving the parameters of contact binaries with the Wilson–Devinney program and the Phoebe with Markov chain Monte Carlo (MCMC) program is relatively slo
Publikováno v:
Research in Astronomy and Astrophysics. 22:125018
Accreting neutron star binary (ANSB) systems can provide some important information about neutron stars (NSs), especially on the structure and the equation of state of NSs. However, only a few ANSBs are known so far. The upcoming Chinese Space Statio
Publikováno v:
Research in Astronomy and Astrophysics. 22:065010
The New Vacuum Solar Telescope (NVST) has been releasing its novel winged Ha data (WHD) since April 2021, namely the Ha imaging spectroscopic data. Compared with the prior released version, the new data are further co-aligned among the off-band image
Autor:
Jian Ge, Chuan-Jun Wang, Ji-Lin Zhou, Bao-Li Lun, Kai-Fan Ji, Liang Chang, Jian-Guo Wang, Xiao-Li Wang, Tinggui Wang, Liang Xu, Peng Jiang, Xiao-Guang Yu, Hongyan Zhou
Publikováno v:
Eleventh International Conference on Information Optics and Photonics (CIOP 2019).
Lijiang Exoplanet Tracker (LijET) was designed to detect exoplanets with extremely high precision radial velocity (RV) measurements, and it was mounted on 2.4m telescope at Lijiang Observatory in 2011. The Dispersed Fixed- Delay Interferometry (DFDI)
Publikováno v:
Journal of The Korean Astronomical Society. 47:43-47
Many advanced ground-based solar telescopes improve the spatial resolution of observation images using an adaptive optics (AO) system. As any AO correction remains only partial, it is necessary to use post-processing image reconstruction techniques s
Publikováno v:
Journal of The Korean Astronomical Society. 46:183-190
Recurring jets, which are jets ejected from the same site, are a peculiar type among various solar jet phenomena. We report such recurring jets ejecting from the same site above an active region on January 22, 2012 with high-resolution multi-waveleng
Autor:
Kai Fan Ji, Xue Song Zhao
Publikováno v:
Applied Mechanics and Materials. :1133-1136
Web mining algorithms are widely used in e-commerce. Tourism e-commerce develops fast in recent years in China but the application of web mining algorithms stays in low level compared with some developed countries. This paper first discusses two majo
Publikováno v:
Applied Mechanics and Materials. :1012-1017
The Chinese Solar Radio Heliograph (CSRH) is a new generation radio heliograph would produce more than 4 terabytes data every day. As a aperture synthesis telescope, CSRH is facing the challenge of processing and storing such a vast data. Pipeline sy