期刊: ADVANCES IN ASTRONOMY, 2021; 2021 ()
The Mount Wilson magnetic classification of sunspot groups is thought to be meaningful to forecast flares' eruptions. In this paper, we adopt a deep l......
期刊: ADVANCES IN ASTRONOMY, 2021; 2021 ()
With the rapid growth in astronomical spectra produced by large sky survey telescopes, traditional manual classification processes can no longer fulfi......
期刊: ADVANCES IN ASTRONOMY, 2021; 2021 ()
The control system is the central control unit of the radio telescope. It is used to monitor, control, coordinate, and manage software and hardware sy......
期刊: ADVANCES IN ASTRONOMY, 2021; 2021 ()
We make a systematic examination of the basic theory of general relativity and reemphasize the meaning of coordinates. Firstly, we prove that Einstein......
期刊: ADVANCES IN ASTRONOMY, 2021; 2021 ()
The QiTai Radio Telescope (QTT) will be equipped with the active surface adjustment system (ASAS) to correct the main reflector deformation caused by ......
期刊: ADVANCES IN ASTRONOMY, 2020; 2020 ()
The receiver is a signal receiving device in a radio telescope system. As an important parameter to characterize the receiver performance, noise tempe......
期刊: ADVANCES IN ASTRONOMY, 2020; 2020 ()
Nucleonic direct Urca processes and cooling of the massive neutron stars are studied by considering antikaon condensations. Calculations are performed......
期刊: ADVANCES IN ASTRONOMY, 2020; 2020 ()
We illustrate the chaotic nature of the circular restricted three-body problem from the perspective of the bifurcation diagram with respect to the mas......
期刊: ADVANCES IN ASTRONOMY, 2020; 2020 ()
In this recent study, we shall investigate the wormhole models with a Hu-Sawicki model in the framework of f(R) gravity. Spherically static symmetric ......
期刊: ADVANCES IN ASTRONOMY, 2020; 2020 ()
A systematic examination of the basic theory of general relativity is made, the meaning of coordinates again is emphasized, the confusion caused by un......
期刊: ADVANCES IN ASTRONOMY, 2020; 2020 ()
To investigate the periodic behaviour and relationship of sunspot numbers with cosmic ray intensity and solar wind speed, we present analysis from dai......
期刊: ADVANCES IN ASTRONOMY, 2019; 2019 ()
The sensitivity of our pulsar observation system with typical integration time of 16 minutes has reached 0.4 mJy after we have upgraded the receiver c......
期刊: ADVANCES IN ASTRONOMY, 2019; 2019 ()
The initial parameters about resonant orbits in the Earth-Moon system were investigated in this study. Resonant orbits with different ratios are obtai......