机构

• 国家天文台 [4]
• 高能物理研究所 [1]
• 新疆天文台 [1]
• 云南天文台 [1]

采集方式

• OAI收割 [7]

内容类型

• 期刊论文 [7]

发表日期

• 2021 [7]

学科主题

• 天文学 [1]
• 天文学::恒星与银河... [1]

筛选

浏览/检索结果: 共7条，第1-7条 帮助 限定条件 发表日期：2021     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序题名升序题名降序作者升序作者降序发表日期升序发表日期降序 Absolute parameters and observed flares in the M-type detached eclipsing binary 2MASS J04100497+2931023 期刊论文  OAI收割 RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2021, 卷号: 21, 期号: 5, 页码: 9 作者:  Meng, Gang;  Zhang, Li-Yun;  Pi, Qing-Feng;  Long, Liu;  Han, Xianming L.   |  收藏  |  浏览/下载：17/0  |  提交时间：2021/08/02 binaries  eclipsing  stars  flare  star  low-mass  stars  J04100497+2931023   Tracking the Evolution of Lithium in Giants Using Asteroseismology: Super-Li-rich Stars Are Almost Exclusively Young Red-clump Stars 期刊论文  OAI收割 The Astrophysical Journal Letters, 2021, 卷号: 913, 期号: 1 作者:  Singh,Raghubar;  Reddy,Bacham E.;  Campbell,Simon W.;  Kumar,Yerra Bharat;  Vrard,Mathieu   |  收藏  |  浏览/下载：7/0  |  提交时间：2021/12/06 Stellar abundances  Asteroseismology  Stellar interiors  Low mass stars   The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry 期刊论文  OAI收割 The Astrophysical Journal Letters, 2021, 卷号: 912, 期号: 2 作者:  Eswaraiah,Chakali;  Li,Di;  Furuya,Ray S.;  Hasegawa,Tetsuo;  Ward-Thompson,Derek   |  收藏  |  浏览/下载：47/0  |  提交时间：2021/12/06 Dust continuum emission  Polarimetry  Low mass stars  Dense interstellar clouds  Interstellar magnetic fields   Carbon-chain molecule survey toward four low-mass molecular outflow sources 期刊论文  OAI收割 ASTRONOMY & ASTROPHYSICS, 2021, 卷号: 648, 页码: 17 作者:     |  收藏  |  浏览/下载：23/0  |  提交时间：2021/06/17 ISM: molecules  ISM: jets and outflows  stars: low-mass  stars: protostars   Stellar Parameterization of LAMOST M Dwarf Stars 期刊论文  OAI收割 The Astrophysical Journal Supplement Series, 2021, 卷号: 253, 期号: 2 作者:  Li,Jiadong;  Liu,Chao   |  收藏  |  浏览/下载：15/0  |  提交时间：2021/12/06 M dwarf stars  Astronomy data analysis  Low mass stars  Catalogs   Orbital Solutions of the New Low-mass Eclipsing Binary TIC 157376469 with Spotted Activities 期刊论文  OAI收割 Publications of the Astronomical Society of the Pacific, 2021, 卷号: 133, 期号: 1022 作者:  Pan,Yang;  Fu,Jian-Ning;  Zhang,Xiaobin;  Wang,Jiaxin;  Zong,Weikai   |  收藏  |  浏览/下载：19/0  |  提交时间：2021/12/06 Low mass stars  Stellar activity  Eclipsing binary stars  Late-type stars   Synchronous X-ray/Optical QPOs from the Black Hole LMXB MAXI J1820+070 期刊论文  OAI收割 Monthly Notices of the Royal Astronomical Society, 2021 作者:  HXMT   |  收藏  |  浏览/下载：42/0  |  提交时间：2022/02/08 black hole physics  Low Mass X-ray Binaries  accretion  accretion  discs  stars: individual (MAXI J1820+070)  Astrophysics - High Energy  Astrophysical Phenomena  Abstract: We present high-speed optical photometry from SAAO and SALT on the black hole LMXB MAXI J1820+070 (ASSASN-18ey), some of it simultaneous with NICER, Swift and Insight-HXMT X-ray coverage. We detect optical Quasi-Periodic Oscillations (QPOs) that move to higher frequencies as the outburst progresses, tracking both the frequency and evolution of similar X-ray QPOs previously reported. Correlated X-ray/optical data reveal a complex pattern of lags, including an anti-correlation and a sub-second lag that evolve over the first few weeks of outburst. They also show correlated components separated by a lag equal to the QPO period roughly centered on zero lag, implying that the inter-band variability is strongly and consistently affected by these QPOs at a constant phase lag of roughly ±Ю The synchronisation of X-ray and optical QPOs indicates that they must be produced in regions physically very close to each other  we thus propose that they can be explained by a precessing jet model, based on analogies with V404 Cyg and MAXI J1348-630.