Observations of the Hydroxyl Radical in C/2013 US10 (Catalina) at 18cm Wavelength

被引：3

作者：

Wang, Zhen ^{[1
]}

Chen, Xi ^{[2
]}

Gao, Feng ^{[2
]}

Zhang, Shaobo ^{[3
,4
]}

Zheng, Xing-Wu ^{[5
]}

Ip, Wing-Huen ^{[6
,7
]}

Wang, Na ^{[1
]}

Liu, Xiang ^{[1
]}

Zuo, Xiu-Ting ^{[2
]}

Gou, Wei ^{[2
]}

Chang, Sheng-Qi ^{[2
]}

机构：

[1] Chinese Acad Sci, Xinjiang Astron Observ, Key Lab Radio Astron, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China

[2] Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China

[3] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China

[4] Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China

[5] Nanjing Univ, Astron Dept, Nanjing 210093, Jiangsu, Peoples R China

[6] Natl Ctr Univ, Inst Astron, Taoyuan, Taiwan

[7] Macau Univ Sci & Technol, Space Sci Inst, Macau, Peoples R China

来源：

ASTRONOMICAL JOURNAL | 2017年 / 154卷 / 06期

关键词：

comets: general; line: profiles; molecular processes; COMET-WEST; 1975N; OH LINE-SHAPES; O1; HALE-BOPP; MOLECULAR-SPECTROSCOPY; MICROWAVE TRANSITIONS; EXPANSION VELOCITY; COLOGNE DATABASE; EMISSION; HALLEY; P/HALLEY;

D O I：

10.3847/1538-3881/aa97db

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The hydroxyl (OH) radical produced by photodissociation of water molecule is one of the most important indicators for cometary outgassing activity. The absorption lines of the OH radical at 1665 and 1667 MHz in the coma of comet C/2013 US10 Catalina were detected between 2015 December 3 and 5 by the Tian Ma Radio Telescope of Shanghai Astronomical Observatory. The source flux intensity was derived to be about - 209 mJy km s(-1) and -86 mJy km s(-1) at 1665 MHz and 1667 MHz, respectively. The corresponding gas production rate was estimated to be (8.78 +/- 1.47) x 10(28) H2O s(-1) and (5.94 +/- 1.27) x 10(28) H2O s(-1), accordingly.

引用

页数：6

共 5 条

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ASTROPHYSICAL JOURNAL LETTERS, 2018, 862 (02)
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PLANETARY SCIENCE JOURNAL, 2021, 2 (01):
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ASTRONOMICAL JOURNAL, 2017, 154 (04):
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