Production of hexamethylenetetramine in photolyzed and irradiated interstellar cometary ice analogs

被引：63

作者：

Cottin, H

Szopa, C

Moore, MH

机构：

[1] NASA, Goddard Space Flight Ctr, Astrochem Branch, Greenbelt, MD 20771 USA

[2] Univ Paris 07, Lab Interuniv Syst Atmospher, CNRS, UMR 7583, F-94010 Creteil, France

[3] Univ Paris 12, Lab Interuniv Syst Atmospher, CNRS, UMR 7583, F-94010 Creteil, France

来源：

ASTROPHYSICAL JOURNAL | 2001年 / 561卷 / 01期

基金：

美国国家航空航天局;

关键词：

astrochemistry; comets : general; ISM : molecules; methods : laboratory; space vehicles : instruments;

D O I：

10.1086/324575

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report hexamethylenetetramine (HMT) detection in organic residues resulting from H2O : CO : CH3OH : NH3 ices submitted to UV photolysis or proton irradiation. This is the first time HMT is detected after proton irradiation of an interstellar or cometary ice analog, whereas this molecule was suspected to be a characteristic signature of UV versus ion processing. This result strengthens the probability of HMT presence in the interstellar medium and in comets, where it may eventually be detected with the COSAC (COmetary Sampling And Composition) experiment on board the upcoming Rosetta mission.

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收藏

页码：L139 / L142

页数：4

相关论文

共 30 条

[1] PHOTOCHEMICAL AND THERMAL EVOLUTION OF INTERSTELLAR PRECOMETARY ICE ANALOGS [J].

ALLAMANDOLA, LJ ;

SANDFORD, SA ;

VALERO, GJ .

ICARUS, 1988, 76 (02) :225-252

[2] ION IRRADIATION EXPERIMENTS RELEVANT TO THE PHYSICS OF COMETS [J].

BARATTA, GA ;

CASTORINA, AC ;

LETO, G ;

PALUMBO, ME ;

SPINELLA, F ;

STRAZZULLA, G .

PLANETARY AND SPACE SCIENCE, 1994, 42 (09) :759-766

[3] INFRARED-SPECTRUM OF MATRIX-ISOLATED HEXAMETHYLENETETRAMINE IN AR AND H2O AT CRYOGENIC TEMPERATURES [J].

BERNSTEIN, MP ;

SANDFORD, SA ;

ALLAMANDOLA, LJ ;

CHANG, S .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (47) :12206-12210

[4] ORGANIC-COMPOUNDS PRODUCED BY PHOTOLYSIS OF REALISTIC INTERSTELLAR AND COMETARY ICE ANALOGS CONTAINING METHANOL [J].

BERNSTEIN, MP ;

SANDFORD, SA ;

ALLAMANDOLA, LJ ;

CHANG, S ;

SCHARBERG, MA .

ASTROPHYSICAL JOURNAL, 1995, 454 (01) :327-344

[5] Carbonic acid by ion implantation in water/carbon dioxide ice mixtures [J].

Brucato, JR ;

Palumbo, ME ;

Strazzulla, G .

ICARUS, 1997, 125 (01) :135-144

[6] Cometary organic chemistry: a review from observations, numerical and experimental simulations [J].

Cottin, H ;

Gazeau, MC ;

Raulin, F .

PLANETARY AND SPACE SCIENCE, 1999, 47 (8-9) :1141-1162

[7]

COTTIN H, 2001, IN PRESS ADV SPACE R

[8] COMETARY DUST SIZING - COMPARISON BETWEEN OPTICAL AND INSITU SAMPLING TECHNIQUES [J].

CRIFO, JF .

PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION, 1988, 5 (01) :38-46

[9] The spectrum of comet Hale-Bopp (C/1995 O1) observed with the Infrared Space Observatory at 2.9 astronomical units from the sun [J].

Crovisier, J ;

Leech, K ;

BockeleeMorvan, D ;

Brooke, TY ;

Hanner, MS ;

Altieri, B ;

Keller, HU ;

Lellouch, E .

SCIENCE, 1997, 275 (5308) :1904-1907

[10] Organic molecules in the interstellar medium, comets, and meteorites: A voyage from dark clouds to the early earth [J].

Ehrenfreund, P ;

Charnley, SB .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 2000, 38 :427-+