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浏览/检索结果: 共43条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Photometric study of semi-detached eclipsing binary TW Cas based on TESS photometry 期刊论文  OAI收割 NEW ASTRONOMY, 2022, 卷号: 93 作者:  Ma WW(马文武);  Zhao EG(赵二刚);  Sarotsakulchai, Thawicharat   |  收藏  |  浏览/下载：35/0  |  提交时间：2022/07/18 Eclipsing binary  Evolution  Orbital period  Light curves   NSVS 11868841: An active detached eclipsing binary system with a substellar object 期刊论文  OAI收割 NEW ASTRONOMY, 2022, 卷号: 91 作者:  Zhang, B.;  Qian SB(钱声帮);  Zhi, Q.-J.;  Dong, A.-J.;  Zhu LY(朱俐颖)   |  收藏  |  浏览/下载：63/0  |  提交时间：2021/10/11 Binary  Eclipsing binary  Orbital period  Light curves   Stimulatory and inhibitory effects of light on Cereus repandus (Cactaceae) seed germination are strongly dependent on spectral quality 期刊论文  OAI收割 SEED SCIENCE RESEARCH, 2022, 页码: PII S0960258522000150 作者:  Yang, X-Y;  Pritchard, Hugh W.   |  收藏  |  浏览/下载：6/0  |  提交时间：2024/04/30 dark-induced dormancy  light dose  neglected and underutilized species  R-FR light reversibility  seed traits  FLUENCE-RESPONSE CURVES  TEMPERATURE  ECOLOGY  TRAITS  SOIL  PENETRATION  EMERGENCE  VIVIPARY  DESERT  FAMILY   KIC 12602250: A Low-amplitude Double-mode Delta Scuti Star with Amplitude Modulation 期刊论文  OAI收割 Astronomical Journal, 2021, 卷号: 162, 期号: 2, 页码: 48 作者:  Lv, Chenglong;  Esamdin, Ali;  Zeng, Xiangyun;  Pascual-Granado, J.;  Yang, Taozhi   |  收藏  |  浏览/下载：48/0  |  提交时间：2022/06/30 light curves  frequency  pulsation  asteroseismology  variability  photometry  Astronomy & Astrophysics   Photometric Study and Absolute Parameter Estimation of Six Totally Eclipsing Contact Binaries 期刊论文  OAI收割 Astronomical Journal, 2021, 卷号: 162, 期号: 1, 页码: 13 作者:  Li, Kai;  Xia, Qi-Qi;  Kim, Chun-Hwey;  Gao, Xing;  Hu, Shao-Ming   |  收藏  |  浏览/下载：25/0  |  提交时间：2022/06/30 low-mass-ratio  light-curve analysis  ursae-majoris system  thermal  relaxation oscillation  radial-velocity curves  flip-flop activity  short-period limit  rt leonis minoris  uma-type binaries  physical  parameters  Astronomy & Astrophysics   Search for variable stars in the open cluster NGC 1245 期刊论文  OAI收割 Research in Astronomy and Astrophysics, 2021, 卷号: 21, 期号: 5, 页码: 124 作者:  Shen, Dong-Xiang;  Zhang, Yu;  Li, Chun-Yan;  Zeng, Xiang-Yun;  Lu, Guo-Liang   |  收藏  |  浏览/下载：19/0  |  提交时间：2022/06/30 open clusters and associations  individual (NGC 1245)  stars  variables  general  stars  variables  delta Scuti  binaries  eclipsing  transiting extrasolar planets  delta-scuti  gamma-doradus  stellar-systems  light curves  csi 2264  wide photometry  young stars  evolution  catalog  Astronomy & Astrophysics   A Rare Low-mass Short-period Eclipsing Binary Candidate With A Close-in Non-coplanar Stellar Companion 期刊论文  OAI收割 NEW ASTRONOMY, 2021, 卷号: 83, 页码: 5 作者:  Zhang, B.;  Qian SB(钱声帮);  Miloslav, Zejda;  Zhi, Q-J;  Dong, A-J   |  收藏  |  浏览/下载：40/0  |  提交时间：2020/11/30 binary  eclipsing binary  orbital period  light curves   Evolution of the Quiescent Disk Surrounding a Superoutburst of the Dwarf Nova TW Virginis 期刊论文  OAI收割 The Astronomical Journal, 2021, 卷号: 161, 期号: 1 作者:  Dai ZB(戴智斌);  Szkody, Paula;  Garnavich, Peter M.   |  收藏  |  浏览/下载：47/0  |  提交时间：2021/01/25 Interacting binary stars  Cataclysmic variable stars  Dwarf novae  U Geminorum stars  Accretion  White dwarf stars  Light curves   Do the observational data favor a local void? 期刊论文  OAI收割 PHYSICAL REVIEW D, 2021, 卷号: 103, 期号: 12, 页码: 123539 作者:  Cai, Rong-Gen;  Ding, Jia-Feng;  Guo, Zong-Kuan;  Wang, Shao-Jiang;  Yu, Wang-Wei   |  收藏  |  浏览/下载：27/0  |  提交时间：2021/09/27 HUBBLE-SPACE-TELESCOPE  DARK-ENERGY CONSTRAINTS  PHOTOMETRY DATA RELEASE  LIGHT CURVES  COSMOLOGICAL CONSTRAINTS  SYSTEMATIC UNCERTAINTIES  CEPHEID STANDARDS  SUPERNOVA SURVEY  IA SUPERNOVAE  PAN-STARRS1   Detection of Flare Multiperiodic Pulsations in Mid-ultraviolet Balmer Continuum, Lyl Hard X-Ray, and Radio Emissions Simultaneously 期刊论文  OAI收割 The Astrophysical Journal, 2021, 卷号: 921, 页码: 179 作者:  HXMT   |  收藏  |  浏览/下载：22/0  |  提交时间：2022/02/08 Solar flares  Solar oscillations  Solar ultraviolet emission  Solar  x-ray emission  Solar radio emission  1496  1515  1533  1536  1522  Astrophysics - Solar and Stellar Astrophysics  Abstract: Quasi-periodic pulsations (QPPs), which usually appear as temporal pulsations of the total flux, are frequently detected in the light curves of solar/stellar flares. In this study, we present the investigation of nonstationary QPPs with multiple periods during the impulsive phase of a powerful flare on 2017 September 6, which were simultaneously measured by the Hard X-ray Modulation Telescope (Insight-HXMT), as well as the ground-based BLENSW. The multiple periods, detected by applying a wavelet transform and Lomb-Scargle periodogram to the detrended light curves, are found to be ~20-55 s in the Ly`and mid-ultraviolet Balmer continuum emissions during the flare impulsive phase. Similar QPPs with multiple periods are also found in the hard X-ray emission and low-frequency radio emission. Our observations suggest that the flare QPPs could be related to nonthermal electrons accelerated by the repeated energy release process, i.e., triggering of repetitive magnetic reconnection, while the multiple periods might be modulated by the sausage oscillation of hot plasma loops. For the multiperiodic pulsations, other generation mechanisms could not be completely ruled out.