Prebiotic chemicals-amino acid and phosphorus-in the coma of comet 67P/Churyumov-Gerasimenko

被引：392

作者：

Altwegg, Kathrin ^{[1
,2
]}

Balsiger, Hans ^{[1
]}

Bar-Nun, Akiva ^{[3
]}

Berthelier, Jean-Jacques ^{[4
]}

Bieler, Andre ^{[1
,5
]}

Bochsler, Peter ^{[1
]}

Briois, Christelle ^{[6
]}

Calmonte, Ursina ^{[1
]}

Combi, Michael R. ^{[5
]}

Cottin, Herve ^{[7
,8
]}

De Keyser, Johan ^{[9
]}

Dhooghe, Frederik ^{[9
]}

Fiethe, Bjorn ^{[10
]}

Fuselier, Stephen A. ^{[11
]}

Gasc, Sebastien ^{[1
]}

Gombosi, Tamas I. ^{[5
]}

Hansen, Kenneth C. ^{[5
]}

Haessig, Myrtha ^{[1
,11
]}

Jackel, Annette ^{[1
]}

Kopp, Ernest ^{[1
]}

Korth, Axel ^{[12
]}

Le Roy, Lena ^{[2
]}

Mall, Urs ^{[12
]}

Marty, Bernard ^{[13
]}

Mousis, Olivier ^{[14
]}

Owen, Tobias ^{[15
]}

Reme, Henri ^{[16
,17
]}

Rubin, Martin ^{[1
]}

Semon, Thierry ^{[1
]}

Tzou, Chia-Yu ^{[1
]}

Waite, James Hunter ^{[11
]}

Wurz, Peter ^{[1
]}

机构：

[1] Univ Bern, Phys Inst, Sidlerstr 5, CH-3012 Bern, Switzerland

[2] Univ Bern, Ctr Space & Habitabil, Sidlerstr 5, CH-3012 Bern, Switzerland

[3] Tel Aviv Univ, Dept Geosci, IL-6997801 Ramat Aviv, Israel

[4] Univ Versailles St Quentin En Yvelines, Univ Paris 06, Lab Atmospheres, IPSL,CNRS,UVSQ,Milieux,Observat Spatiales,LATMOS, 4 Ave Neptune, F-94100 St Maur, France

[5] Univ Michigan, Dept Climate & Space Sci & Engn, 2455 Hayward, Ann Arbor, MI 48109 USA

[6] Univ Orleans, LPC2E, UMR CNRS 7328, F-45100 Orleans, France

[7] Univ Paris Est Creteil, LISA, UMR CNRS 7583, F-94010 Creteil, France

[8] Univ Paris Diderot, IPSL, F-94010 Creteil, France

[9] Royal Belgian Inst Space Aeron BIRA IASB, Ringlaan 3, B-1180 Brussels, Belgium

[10] Tech Univ Carolo Wilhelmina Braunschweig, Inst Comp & Network Engn IDA, Hans Sommer Str 66, D-38106 Braunschweig, Germany

[11] Southwest Res Inst, Dept Space Sci, 6220 Culebra Rd, San Antonio, TX 78228 USA

[12] Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany

[13] Univ Lorraine, CRPG, CNRS, 15 Rue Notre Dame Pauvres,BP 20, F-54501 Vandoeuvre Les Nancy, France

[14] Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France

[15] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

[16] Univ Toulouse 3, Univ Toulouse, UPS, IRAP, F-31028 Toulouse, France

[17] CNRS, IRAP, 9 Ave Colonel Roche,BP 44346, F-31028 Toulouse, France

来源：

SCIENCE ADVANCES | 2016年 / 2卷 / 05期

基金：

欧洲研究理事会; 瑞士国家科学基金会;

关键词：

INTERSTELLAR; IRRADIATION; IONIZATION; CHEMISTRY;

D O I：

10.1126/sciadv.1600285

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The importance of comets for the origin of life on Earth has been advocated for many decades. Amino acids are key ingredients in chemistry, leading to life as we know it. Many primitive meteorites contain amino acids, and it is generally believed that these are formed by aqueous alterations. In the collector aerogel and foil samples of the Stardust mission after the flyby at comet Wild 2, the simplest form of amino acids, glycine, has been found together with precursor molecules methylamine and ethylamine. Because of contamination issues of the samples, a cometary origin was deduced from the C-13 isotopic signature. We report the presence of volatile glycine accompanied by methylamine and ethylamine in the coma of 67P/Churyumov-Gerasimenko measured by the ROSINA (Rosetta Orbiter Spectrometer for Ion and Neutral Analysis) mass spectrometer, confirming the Stardust results. Together with the detection of phosphorus and a multitude of organic molecules, this result demonstrates that comets could have played a crucial role in the emergence of life on Earth.

引用

页数：5

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