Complex organic molecules in comets C/2012 F6 (Lemmon) and C/2013 R1 (Lovejoy): detection of ethylene glycol and formamide

被引：101

作者：

Biver, N. ^{[1
]}

Bockelee-Morvan, D. ^{[1
]}

Debout, V. ^{[1
]}

Crovisier, J. ^{[1
]}

Boissier, J. ^{[2
]}

Lis, D. C. ^{[3
,4
]}

Dello Russo, N. ^{[5
]}

Moreno, R. ^{[1
]}

Colom, P. ^{[1
]}

Paubert, G. ^{[6
]}

Vervack, R. ^{[5
]}

Weaver, H. A. ^{[5
]}

机构：

[1] Univ Paris Diderot, UPMC, CNRS, Observ Paris,LESIA, F-92195 Meudon, France

[2] IRAM, F-38406 St Martin Dheres, France

[3] CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA

[4] Univ Paris 04, UPMC, CNRS, Observ Paris,LERMA, F-75014 Paris, France

[5] JHU APL, Laurel, MD USA

[6] IRAM, E-18012 Granada, Spain

来源：

ASTRONOMY & ASTROPHYSICS | 2014年 / 566卷

关键词：

astrobiology; astrochemistry; comets: individual: C/2012 F6 (Lemmon); comets: individual: C/2013 R1 (Lovejoy); radio lines: planetary systems; submillimeter: planetary systems; O1; HALE-BOPP; UPPER LIMITS; IRAM; SPECTROSCOPY; SIMPLEST; WATER; JCMT;

D O I：

10.1051/0004-6361/201423890

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A spectral survey in the 1 mm wavelength range was undertaken in the long-period comets C/2012 F6 (Lemmon) and C/2013 R1 (Lovejoy) using the 30 m telescope of the Ins titut de radioastronomie millimetrique (IRAM) in April and November-December 2013. We report the detection of ethylene glycol (CH2OH)(2) (aGg' conformer) and formamide (NH2CHO) in the two comets. The abundances relative to water of ethylene glycol and formamide are 0.2-0.3% and 0.02% in the two comets, similar to the values measured in comet C/1995 O1 (Hale-Bopp). We also report the detection of HCOOH and CH3CHO in comet C/2013 R1 (Lovejoy), and a search for other complex species (methyl formate, glycolaldehyde).

引用

页数：5

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