中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
云南天文台 [9]
力学研究所 [4]
地理科学与资源研究所 [4]
国家天文台 [4]
紫金山天文台 [4]
西双版纳热带植物园 [3]
更多
采集方式
OAI收割 [46]
iSwitch采集 [3]
内容类型
期刊论文 [41]
会议论文 [6]
学位论文 [2]
发表日期
2024 [1]
2023 [3]
2022 [4]
2020 [1]
2019 [2]
2018 [7]
更多
学科主题
天文学 [6]
天文学::恒星与银河... [3]
Astronomy ... [2]
Materials ... [1]
Materials ... [1]
Mechanics [1]
更多
筛选
浏览/检索结果:
共49条,第1-10条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
发表日期升序
发表日期降序
提交时间升序
提交时间降序
作者升序
作者降序
A possibly solar metallicity atmosphere escaping from HAT-P-32b revealed by Hα and He absorption
期刊论文
OAI收割
ASTRONOMY & ASTROPHYSICS, 2024, 卷号: 686
作者:
Yan DD(闫冬冬)
;
Guo JH(郭建恒)
;
Seon, Kwang-il
;
López, Manuel
;
Czesla, Stefan
  |  
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2024/07/01
hydrodynamics
radiative transfer
methods: numerical
planets and satellites: atmospheres
planets and satellites: composition
planets and satellites: individual: HAT-P-32b
Adiabatic shearing in railway wheel steel of high-speed train
期刊论文
OAI收割
MATERIALS LETTERS, 2023, 卷号: 341, 页码: 134168
作者:
Lei Y(雷勇)
;
Li T(李统)
;
Su MY(苏明耀)
;
Li C(李琛)
;
Wang HY(汪海英)
  |  
收藏
  |  
浏览/下载:81/0
  |  
提交时间:2023/06/15
Metals and alloys
Railway wheel steel
Hat-shaped specimen
Microstructure
Shear localization
Uncertainties of three high-resolution actual evapotranspiration products across China: Comparisons and applications
期刊论文
OAI收割
ATMOSPHERIC RESEARCH, 2023, 卷号: 286, 页码: 106682
作者:
Yao, Tianci
;
Lu, Hongwei
;
Yu, Qing
;
Feng, Sansan
;
Xue, Yuxuan
  |  
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2023/05/06
Actual evapotranspiration
Uncertainty
Attribution analysis
Three-cornered hat method
China
The study on transiting systems HAT-P-13, HAT-P-16, and WASP-32 through combining ground-based and TESS photometry
期刊论文
OAI收割
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 卷号: 520, 期号: 2, 页码: 1642-1658
作者:
Sun LL(孙磊磊)
;
Gu SH(顾盛宏)
;
Wang XB(王晓彬)
;
Bai L(白璐)
;
Schmitt, J H M M
  |  
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2023/03/27
techniques: photometric
planets and satellites: fundamental parameters
planets and satellites: individual: HAT- P-13, HAT-P-16, WASP-32
Latin Matchings and Ordered Designs OD(n-1, n, 2n-1)
期刊论文
OAI收割
MATHEMATICS, 2022, 卷号: 10, 期号: 24, 页码: 18
作者:
Jin, Kai
;
Zhu, Taikun
;
Gu, Zhaoquan
;
Sun, Xiaoming
  |  
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2023/07/12
combinatorial design
ordered design
Hamming code
error-correcting code
hat guessing game
Latin matching
antipodal matching
Latin square and hypercube
multiagent system
Multi-scale evaluation of global evapotranspiration products derived from remote sensing images: Accuracy and uncertainty
期刊论文
OAI收割
JOURNAL OF HYDROLOGY, 2022, 卷号: 611, 页码: 20
作者:
Zhu, Wenbin
;
Tian, Shengrong
;
Wei, Jiaxing
;
Jia, Shaofeng
;
Song, Zikun
  |  
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2022/09/21
Evapotranspiration
Satellite remote sensing
Three-cornered hat
Evaluation
Accuracy
Uncertainty
Multi-scale evaluation of global evapotranspiration products derived from remote sensing images: Accuracy and uncertainty
期刊论文
OAI收割
JOURNAL OF HYDROLOGY, 2022, 卷号: 611, 页码: 20
作者:
Zhu, Wenbin
;
Tian, Shengrong
;
Wei, Jiaxing
;
Jia, Shaofeng
;
Song, Zikun
  |  
收藏
  |  
浏览/下载:50/0
  |  
提交时间:2022/09/21
Evapotranspiration
Satellite remote sensing
Three-cornered hat
Evaluation
Accuracy
Uncertainty
Infrared dim target detecting algorithm based on multi-feature and spatio-temporal fusion
会议论文
OAI收割
Shanghai, China, 2021-10-28
作者:
Bai, Mei
;
Zhang, Jian
;
Zhao, Hui
  |  
收藏
  |  
浏览/下载:46/0
  |  
提交时间:2022/03/18
Infrared Dim Target Detection
TOP-HAT
Improved-PM
Multi-feature Fusion
SCR
An underlying clock in the extreme flip-flop state transitions of the black hole transient Swift J1658.2-4242
期刊论文
OAI收割
Astronomy and Astrophysics, 2020, 卷号: 641, 页码: A101
作者:
HXMT
  |  
收藏
  |  
浏览/下载:65/0
  |  
提交时间:2022/02/08
accretion
accretion disks
black hole physics
X-rays: binaries
time
Astrophysics - High Energy Astrophysical Phenomena
Abstract:
Aims: Flip-flops are top-hat-like X-ray flux variations, which have been observed in some transient accreting black hole binary systems, and feature simultaneous changes in the spectral hardness and the power density spectrum (PDS). They occur at a crucial time in the evolution of these systems, when the accretion disc emission starts to dominate over coronal emission. Flip-flops remain a poorly understood phenomenon, so we aim to thoroughly investigate them in a system featuring several such transitions.
Methods: Within the multitude of observations of
Swift J1658.2-4242
during its outburst in early 2018, we detected 15 flip-flops, enabling a detailed analysis of their individual properties and the differences between them. We present observations by XMM-Newton, NuSTAR, Astrosat, Swift, Insight-HXMT, INTEGRAL, and ATCA. We analysed their light curves, searched for periodicities, computed their PDSs, and fitted their X-ray spectra, to investigate the source behaviour during flip-flop transitions and how the interval featuring flip-flops differs from the rest of the outburst.
Results: The flip-flops of Swift J1658.2-4242 are of an extreme variety, exhibiting flux differences of up to 77% within 100 s, which is much larger than what has been seen previously. We observed radical changes in the PDS simultaneous with the sharp flux variations, featuring transitions between the quasi-periodic oscillation types C and A, which have never been observed before. Changes in the PDS are delayed, but more rapid than changes in the light curve. Flip-flops occur in two intervals within the outburst, separated by about two weeks in which these phenomena were not seen. Transitions between the two flip-flop states occurred at random integer multiples of a fundamental period of 2.761 ks in the first interval and 2.61 ks in the second. Spectral analysis reveals the high and low flux flip-flop states to be very similar, but distinct from intervals lacking flip-flops. A change of the inner temperature of the accretion disc is responsible for most of the flux difference in the flip-flops. We also highlight the importance of correcting for the influence of the dust scattering halo on the X-ray spectra.