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Isotopic ratios in outbursting comet C/2015 ER61
Yang B(杨彬)1,2; Hutsemékers, Damien3; Shinnaka, Yoshiharu4; Opitom, Cyrielle1; Manfroid, Jean3; Jehin, Emmanuël3; Meech, Karen J.5; Hainaut, Olivier R.1; Keane, Jacqueline V.5; Gillon, Michaël3
2018-02-05
发表期刊ASTRONOMY & ASTROPHYSICS
ISSN1432-0746
卷号609
产权排序第2完成单位
摘要Isotopic ratios in comets are critical to understanding the origin of cometary material and the physical and chemical conditions in the early solar nebula. Comet C/2015 ER61 (PANSTARRS) underwent an outburst with a total brightness increase of 2 magnitudes on the night of 2017 April 4. The sharp increase in brightness offered a rare opportunity to measure the isotopic ratios of the light elements in the coma of this comet. We obtained two high-resolution spectra of C/2015 ER61 with UVES/VLT on the nights of 2017 April 13 and 17. At the time of our observations, the comet was fading gradually following the outburst. We measured the nitrogen and carbon isotopic ratios from the CN violet (0, 0) band and found that C-12/C-13 = 100 +/- 15, N-14/N-15 = 130 +/- 15. In addition, we determined the N-14/N-15 ratio from four pairs of NH2 isotopolog lines and measured N-14/N-15 = 140 +/- 28. The measured isotopic ratios of C/2015 ER61 do not deviate significantly from those of other comets.
关键词Comets: General Comets: Individual: C/2015 Er61 (Panstarrs) Methods: Observational
学科领域天文学
DOI10.1051/0004-6361/201732100
项目资助者European Organisation for Astronomical Research in the Southern Hemisphere under ESO programme(299.C-5006(A)) ; Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS)(FRFC 2.5.594.09) ; JSPS(15J10864) ; NSF(AST-1617015)
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收录类别EI
语种英语
文章类型Article
WOS研究方向Astronomy & Astrophysics
WOS标题词Science & Technology ; Physical Sciences
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000429206100001
关键词[WOS]SOLAR-SYSTEM ; ABUNDANCES ; NITROGEN ; BELT
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12102
专题其他
通讯作者Yang B(杨彬)
作者单位1.European Southern Observatory, Alonso de Còrdova 3107, Vitacura Casilla, Santiago; 19001, Chile
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming; 650011, China
3.Institut d'Astrophysique et de Géophysique, Université de Liège, 19c Allée du Six Août, Liège; 4000, Belgium
4.National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
5.Institute of Astronomy, University of Hawaii, 2680 Woodlawn Dr, Honolulu; HI; 96822, United States
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Yang B,Hutsemékers, Damien,Shinnaka, Yoshiharu,et al. Isotopic ratios in outbursting comet C/2015 ER61[J]. ASTRONOMY & ASTROPHYSICS,2018,609.
APA Yang B.,Hutsemékers, Damien.,Shinnaka, Yoshiharu.,Opitom, Cyrielle.,Manfroid, Jean.,...&Gillon, Michaël.(2018).Isotopic ratios in outbursting comet C/2015 ER61.ASTRONOMY & ASTROPHYSICS,609.
MLA Yang B,et al."Isotopic ratios in outbursting comet C/2015 ER61".ASTRONOMY & ASTROPHYSICS 609(2018).
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