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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
Source PublicationASTRONOMY & ASTROPHYSICS
2018-02-05
Volume609
DOI10.1051/0004-6361/201732100
Contribution Rank第2完成单位
Indexed BySCI ; EI
KeywordComets: General Comets: Individual: C/2015 Er61 (Panstarrs) Methods: Observational
Abstract

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.

Funding ProjectEuropean 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]
Funding OrganizationEuropean 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]
Language英语
Subject Area天文学 ; 天体物理学 ; 恒星与银河系 ; 恒星与银河系其他学科
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherEDP SCIENCES S A
Publication PlaceAVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
ISSN1432-0746
URL查看原文
WOS IDWOS:000429206100001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSolar-system ; Abundances ; Nitrogen ; Belt
EI Accession Number20180604778253
EI KeywordsIsotopes
EI Classification Number804chemical Products Generally
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12102
Collection其他
Corresponding AuthorYang B(杨彬)
Affiliation1.European Southern Observatory, Alonso de Còrdova 3107, Vitacura Casilla 19001, Santiago, Chile
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, PR China
3.Institut d’Astrophysique et de Géophysique, Université de Liège, 19c Allée du Six Août, 4000 Liège, 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, USA
Recommended Citation
GB/T 7714
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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