机构

• 新疆天文台 [3]
• 国家天文台 [2]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [6]

内容类型

• 期刊论文 [5]
• 会议论文 [1]

发表日期

• 2024 [1]
• 2023 [1]
• 2021 [1]
• 2020 [1]
• 2011 [1]
• 2010 [1]
• 更多

学科主题

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浏览/检索结果: 共6条，第1-6条 帮助 条数/页： 5101520253035404550556065707580859095100 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 The Population Synthesis of Wolf-Rayet Stars Involving Binary Merger Channels 期刊论文  OAI收割 Astrophysical Journal, 2024, 卷号: 969, 期号: 2, 页码: 11160 作者:  Zhuowen Li;  Chunhua Zhu;  Guoliang Lü;  Lin Li;  Helei Liu   |  收藏  |  浏览/下载：1/0  |  提交时间：2025/06/05 large-magellanic-cloud  spectroscopic multiplicity survey  common  envelope evolution  black-hole binaries  mass-loss rates  stellar  evolution  presupernova evolution  modern search  model grids  o-stars  Astronomy & Astrophysics   Molecules in the peculiar age-defying source IRAS 19312+1950 期刊论文  OAI收割 Astronomy & Astrophysics, 2023, 卷号: 669, 页码: A121 作者:  Qiu, Jian-Jie;  Zhang, Yong;  Nakashima, Jun-ichi;  Zhang, Jiang-Shui;  Koning, Nico   |  收藏  |  浏览/下载：1/0  |  提交时间：2024/06/23 ISM  molecules  circumstellar matter  line  identification  sio maser source  circumstellar envelopes  line survey  cologne  database  stellar-merger  h2o masers  emission  abundances  submillimeter  stars  Astronomy & Astrophysics   Galactic O-type Stars in LAMOST Data 期刊论文  OAI收割 The Astrophysical Journal Supplement Series, 2021, 卷号: 253, 期号: 2 作者:  Li,Guang-Wei   |  收藏  |  浏览/下载：13/0  |  提交时间：2021/12/06 O stars  Oe stars  Oef stars  Of stars  O dwarf stars  O giant stars  O subgiant stars  O supergiant stars  Spectroscopy  Spectroscopic binary stars   Two New Rapidly Rotating ON Stars Found with LAMOST 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 888, 期号: 2 作者:  Li,Guang-Wei;  Howarth,Ian D.   |  收藏  |  浏览/下载：18/0  |  提交时间：2020/03/10 Stellar rotation  O stars   A hybrid median filter for enhancing dim small point targets and its fast implementation (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Multimedia and Signal Processing, CMSP 2011, May 14, 2011 - May 15, 2011, Guilin, Guangxi, China Yang Q. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 Weak stars and middle altitude orbit satellites or high altitude orbit satellites are presented as dim point targets in images of astronomical observation. They have low intensity and occupy few pixels in image. In most situations  the background of sky is always ununiform and there exists pulse noises. Thus results in targets submerging in background noises and low signal noise ratio (SNR). Median filter is an effective method for removing pulse noise. But it can blur image after modifying gray of non-noise pixels when image has low SNR. A hybrid median filter algorithm is proposed to process low SNR dim point targets image. The newly proposed method can suppress the pulse noises  also can increase target $SNR$ and does not add extra fake targets. The time complexity of median filter is O(N2)(N is the widow size) and is difficult to implement in hardware. For quasi real time application  a fast implementation of our hybrid median filter is proposed to reduce the time complexity to O(N). Experimental results show that the newly proposed algorithm is superior to ordinary median filter and fast median filter by comparing visual effect and performance. 2011 IEEE.   The properties of a large sample of OH/IR stars, S stars and C-rich AGB stars 期刊论文  OAI收割 ASTROPHYSICS AND SPACE SCIENCE, 2010, 卷号: 330, 期号: 1, 页码: 23-36 作者:  Zhang, Hai-juan;  Zhou, Jian-jun;  Dong, Guo-liang;  Esimbek, Jarken;  Mu, Ji-mang 收藏  |  浏览/下载：22/0  |  提交时间：2015/08/25 O-rich (OH/IR) stars  S-stars  C-rich stars  Mass loss  Spectrum energy distributions