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Hybrid Optimization Algorithm in the Photometric Inversion of Periods for Asteroids
《Research in Astronomy and Astrophysics》2023年第5期66-77,共12页Xin-Ran Li Yong-Xiong Zhang Hai-Bin Zhao Xiaoping Zhang Xiao-Ping Lu 
funded by the grant from the Macao Young Scholars Program (Project code: AM201920);the National Natural Science Foundation of China (NSFC, grant No. E11903085);funded by the Science and Technology Development Fund, Macao SAR (File Nos. 0073/ 2019/A2 & 0096/2022/A);supported by the Science and Technology Development Fund, Macao SAR (File No. 0042/ 2018/A2);supported by the B-type Strategic Priority Program of CAS (Grant No. XDB41000000);the NSFC (Grant Nos. 62227901 & 11633009);Space debris and NEO research project (Nos. KJSP2020020204 & KJSP2020020102);Minor Planet Foundation。
Asteroids,as the primitive building blocks for the formation of our solar system,could reveal its evolution mechanism,and have attracted more and more attention from the public and professional institutions in recent ...
关键词：astrometry-methods numerical-planets and satellites fundamental parameters 
Analyzing Dominant 13.5 and 27 day Periods of Solar Terrestrial Interaction:A New Insight into Solar Cycle Activities
《Research in Astronomy and Astrophysics》2022年第8期63-73,共11页Rissnalin Syiemlieh Manashee Adhikary Prasanta K Panigrahi Eeshankur Saikia 
MOTA for providing a fellowship under the NFST project;IISER,Kolkata for providing all necessary support。
Our analysis presents an explanation of the Sun–Earth coupling mechanism during declining phase of a solar cycle,and how the dominant 13.5 and 27 day periods play roles in the coupling mechanism which led to intense ...
关键词：(Sun:)solar wind (Sun:)sunspots (Sun:)solar-terrestrial relation (Sun:)activity methods:data analysis 
BGLS-based method of estimating the rotational periods of asteroids
《Research in Astronomy and Astrophysics》2021年第7期107-114,共8页Yan-Qiong Ren Xiao-Ping Lu Yong Liang 
supported by The Science and Technology Development Fund,Macao SAR(File No.0158/2019/A3);funded by The Science and Technology Development Fund,Macao SAR(File No.0073/2019/A2)。
As the asteroid rotational period is important to the study of the properties of asteroids(e.g.,super-fast rotators have structures owing an internal cohesion(rather than being rubble piles bounded by gravity only) so...
关键词：methods:data analysis asteroids:general techniques:photometric 
A strange phenomenon in XZ Andromedae: two Keplerian periods with a 1:3 ratio
《Research in Astronomy and Astrophysics》2019年第9期63-70,共8页Jin-Zhao Yuan Sheng-Bang Qian 
supported by the National Natural Science Foundation of China (Nos. 11705111 and U1231121)
Six mid-eclipse times of the eclipsing binary XZ And are obtained, which are analyzed together with others collected from the literature. Two sets of cyclic variations with periods of 33.43 and 100.4 yr are found if a...
关键词：binaries:close stars:individual:XZ ANDROMEDAE 
Light curve solutions of six eclipsing binaries at the lower limit of periods for W UMa stars
《Research in Astronomy and Astrophysics》2015年第9期1493-1503,共11页Diana P.Kjurkchieva Dinko P.Dimitrov Sunay I.Ibryamov 
partly supported by funds provided by projects RD 02-263 administered by the Scientific Foundation of Shumen University;a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology;funded by the National Aeronautics and Space Administration;the National Science Foundation
Photometric observations are presented in V and I bands of six eclipsing binaries at the lower limit of the orbital periods for W UMa stars. Three of them are newly discovered eclipsing systems. The light curve soluti...
关键词：methods： data analysis -- catalogs -- stars： fundamental parameters-- stars： binaries： eclipsing： individual （1SWASP J173828.46＋111150.2 1SWASPJ174310.98＋432709.6 ≡ V1067 Her NSVS 11534299 NSVS 10971359 NSVS11234970 NSVS 11504202） 
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