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Spectroscopic Study of Late-type Emission-line Stars Using the Data from LAMOST DR6
《Research in Astronomy and Astrophysics》2024年第12期138-155,共18页D.Edwin Blesson Mathew B.Shridharan Vineeth Valsan S.Nidhi Suman Bhattacharyya Sreeja S.Kartha T.Robin 
Low-mass emission-line stars belong to various evolutionary stages,from pre-main-sequence young stars to evolved stars.In this work,we present a catalog of late-type(F0 to M9)emission-line stars from the LAMOST Data R...
关键词：STARS late-type-Stars activity-Line IDENTIFICATION 
Four Late-type Galaxies with Double Radio Lobes and Properties of Such Galaxies
《Research in Astronomy and Astrophysics》2024年第4期84-90,共7页Z.S.Yuan X.Y.Gao Z.L.Wen J.L.Han 
partially supported by the National SKA Program of China(grant No.2022SKA0120103);the National Natural Science Foundation of China(Nos.11988101 and 11833009,12073036);support from the science research grants from the China Manned Space Project(CMS-CSST-2021-A01,CMS-CSST-2021-B01);the financial support from the National Key R&D Program of China(No.2021YFA1600401 and 2021YFA1600400);the International Partnership Program of Chinese Academy of Sciences,grant No.114A11KYSB20170044。
The triggering mechanism for radio lobes from late-type galaxies is not fully understood.More samples are desired for a thorough investigation and statistics.By utilizing the optical data from the newly released Dark ...
关键词：galaxies:active galaxies:jets galaxies:spiral radio continuum:galaxies 
Possible Detection of a Flare-associated Coronal Mass Ejection on an M-dwarf
《Research in Astronomy and Astrophysics》2023年第9期207-212,共6页J.Wang 
support from the National Key Research and Development Project of China (grant 2020YFE0202100);supported by the National Natural Science Foundation of China (NSFC, grant No. 12173009);by the Strategic Pioneer Program on Space Science, Chinese Academy of Sciences, grants XDA15052600 and XDA15016500;supported by the Natural Science Foundation of Guangxi (2020GXNSFDA238018);by the Bagui Young Scholars Program.
We here report a probable detection of a stellar coronal mass ejection(CME)in active M dwarf KIC 8093473 by performing an analysis on its time resolved X-ray spectra observed by the XMM-Newton satellite.Compared to th...
关键词：STARS coronae-stars flare-stars late-type-X-rays STARS 
Variability of Young Stellar Objects in the Perseus Molecular Cloud
《Research in Astronomy and Astrophysics》2023年第7期174-196,共23页Xiao-Long Wang Min Fang Gregory J.Herczeg Yu Gao Hai-Jun Tian Xing-Yu Zhou Hong-Xin Zhang Xue-Peng Chen 
the support of the CAS International Cooperation Program(Grant No.114332KYSB20190009);the National Natural Science Foundation of China(NSFC)Grant No.12033004;supported by grant 12173003 from the NSFC;Funding for the project has been provided by the National Development and Reform Commission;supported by the National Science Foundation under grant Nos.AST1440341 and AST-2034437。
We present an analysis of 288 young stellar objects(YSOs)in the Perseus molecular cloud that have well defined g and r-band lightcurves from the Zwicky Transient Facility.Of the 288 YSOs,238 sources(83%of our working ...
关键词：stars:variables:general stars:late-type stars:emission-line Be (stars:)starspots ACCRETION accretion disks 
Period Investigation on Two W UMa Binaries HH UMa and V1175 Her
《Research in Astronomy and Astrophysics》2023年第4期184-193,共10页Linfeng Chang Liying Zhu Fangbin Meng 
supported by the National Natural Science Foundation of China (Nos.11922306 and 11933008);the International Cooperation Projects of the National Key R&D Program (No.2022YFE0127300);the Yunnan Fundamental Research Projects (No.202201AT070180)。
HH UMa and V1175 Her are two W UMa contact binary systems whose periods were reported as undergoing secular increase.In this paper,we improved their period analyses with a more extensive database of eclipse timings,fi...
关键词：(stars:)binaries eclipsing-(stars:)binaries(including multiple) close-stars LATE-TYPE 
X-Ray and Ultraviolet Flares on AT Microscopii Observed by AstroSat
《Research in Astronomy and Astrophysics》2023年第1期60-75,共16页A.A.Kuznetsov R.R.Karakotov K.Chandrashekhar D.Banerjee 
supported by the BRICS Multilateral Research and Development Projects-2016(DST/MRCK/BRICS/Pilot Call1/Superflares/2017);the project“Superflares on stars and the Sun,”the Russian Foundation for Basic Research under Grant 17-52-80064;the Ministry of Science and Higher Education of the Russian Federation;supported by the Research Council of Norway through its Centres of Excellence scheme(project No.262622)。
We present observations of the active M-dwarf binary AT Mic(dM4.5e+dM4.5e)obtained with the orbital observatory Astro Sat.During 20 ks of observations,in the far-ultraviolet(130-180 nm)and soft X-ray(0.3-7 keV)spectra...
关键词：STARS coronae-stars flare-stars late-type-X-rays STARS ULTRAVIOLET 
V0644 Ser:An Active Ultrashort Period Contact Binary Star
《Research in Astronomy and Astrophysics》2022年第3期252-262,共11页Hu-Shan Xu Li-Ying Zhu Sarotsakulchai Thawicharat Soonthornthum Boonrucksar 
supported by the National Natural Science Foundation of China(Nos.11922306 and 11933008)。
The photometric solutions of the ultrashort period close binary V0644 Ser based on our new complete BVRI light curves are derived by the Wilson–Devininney code.The results show that V0644 Ser is a W-type shallow cont...
关键词：(stars:)binaries(including multiple):close (stars:)binaries:eclipsing stars:late-type stars:individual(V0644 Ser) 
Photometric and spectroscopic study of flares on Ross 15
《Research in Astronomy and Astrophysics》2021年第1期67-74,共8页Jian-Ying Bai Ali Esamdin Xing Gao Yan Yan Juan-Juan Ren 
the National Natural Science Foundation of China (Grant No. 11873081);partially supported by the Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS。
We conducted photometric and spectroscopic observations of Ross 15 in order to further study the flare properties of this less observed flare star.A total of 28 B-band flares are detected in 128 hr of photometric obse...
关键词：stars:flare stars:activity stars:late-type 
LAMOST/HRS spectroscopic analysis of two new Li-rich giants被引量：2
《Research in Astronomy and Astrophysics》2021年第1期198-206,共9页Ze-Ming Zhou Jian-Rong Shi Hong-Liang Yan Yong-Hui Hou Kai Zhang Qi Gao Xiao-Dong Xu Hai-Long Yuan Yu-Tao Zhou Kaike Pan Zi-Ye Sang Yong-Heng Zhao 
the National Key R&D Program of China(No.2019YFA0405502);the Key Research Program of the Chinese Academy of Sciences under grant No.XDPB09-02;the National Natural Science Foundation of China(Grant Nos.11973052,11833006,11473033 and 11603037);the International partnership program’s Key foreign cooperation project,Bureau of International Cooperation,Chinese Academy of Sciences(No.114A32KYSB20160049);supported by the Astronomical Big Data Joint Research Center,co-founded by the National Astronomical Observatories,Chinese Academy of Sciences and Alibaba Cloud;partially supported by the Open Project Program of the Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences;the financial support from China Scholarship Council(CSC,No.201604910642)for his study at New Mexico State University in the United States of America;the supports from Youth Innovation Promotion Association,Chinese Academy of Sciences;Guo Shou Jing Telescope(the Large Sky Area Multi-Object Fiber Spectroscopic Telescope LAMOST)is a National Major Scientific Project built by the Chinese Academy of Sciences.Funding for the project has been provided by the National Development and Reform Commission;the NASA/IPAC Infrared Science Archive,which is funded by the National Aeronautics and Space Administration;the Wide-field Infrared Survey Explorer,which is a joint project of the University of California,Los Angeles,and the Jet Propulsion Laboratory/California Institute of Technology,funded by the National Aeronautics and Space Administration。
Two Li-rich candidates,TYC 1338-1410-1 and TYC 2825-596-1,were observed by the new high-resolution echelle spectrograph,LAMOST/HRS.Based on their high-resolution and high-signal-tonoise ratio(SNR)spectra,we derived st...
关键词：stars:fundamental parameters stars:late-type stars:low-mass stars:abundances stars:chemically peculiar 
Contact binaries at different evolutionary stages被引量：1
《Research in Astronomy and Astrophysics》2020年第10期229-248,共20页Sheng-Bang Qian Li-Ying Zhu Liang Liu Xu-Dong Zhang Xiang-Dong Shi Jia-Jia He Jia Zhang 
supported by the National Natural Science Foundation of China(Nos.11933008,11922306,11773066 and 11903076);the Open Project Program of the Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences。
Contact binaries consist of two strongly interacting component stars where they are filling their critical Roche lobes and sharing a common envelope.Most of them are main-sequence stars,but some of them are post main-...
关键词：binaries:eclipsing stars:late-type stars:low-mass stars:formation stars:evolution 
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