The formation of the building blocks of peptides on interstellar dust grains

N. F.W. Ligterink; J. Terwisscha Van Scheltinga; V. Kofman; V. Taquet; S. Cazaux; J. K. Jørgensen; E. F. Van Dishoeck; H. Linnartz

doi:10.1017/S1743921320000010

The formation of the building blocks of peptides on interstellar dust grains

N. F.W. Ligterink, J. Terwisscha Van Scheltinga, V. Kofman, V. Taquet, S. Cazaux, J. K. Jørgensen, E. F. Van Dishoeck, H. Linnartz

Astrodynamics & Space Missions

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

The emergence of life on Earth may have its origin in organic molecules formed in the interstellar medium. Molecules with amide and isocyanate groups resemble structures found in peptides and nucleobases and are necessary for their formation. Their formation is expected to take place in the solid state, on icy dust grains, and is studied here by far-UV irradiating a CH4:HNCO mixture at 20 K in the laboratory. Reaction products are detected by means of infrared spectroscopy and temperature programmed desorption-mass spectrometry. Various simple amides and isocyanates are formed, showing the importance of ice chemistry for their interstellar formation. Constrained by experimental conditions, a reaction network is derived, showing possible formation pathways of these species under interstellar conditions.

Original language	English
Pages (from-to)	216-219
Number of pages	4
Journal	Proceedings of the International Astronomical Union
Volume	15
DOIs	https://doi.org/10.1017/S1743921320000010
Publication status	Published - 2020
Event	White Dwarfs as Probes of Fundamental Physics: Tracers of Planetary, Stellar and Galactic Evolution - Hilo, United States Duration: 21 Oct 2019 → 25 Oct 2019

Keywords

Astrobiology
Astrochemistry
methods: Laboratory

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1017/S1743921320000010

Cite this

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title = "The formation of the building blocks of peptides on interstellar dust grains",

abstract = "The emergence of life on Earth may have its origin in organic molecules formed in the interstellar medium. Molecules with amide and isocyanate groups resemble structures found in peptides and nucleobases and are necessary for their formation. Their formation is expected to take place in the solid state, on icy dust grains, and is studied here by far-UV irradiating a CH4:HNCO mixture at 20 K in the laboratory. Reaction products are detected by means of infrared spectroscopy and temperature programmed desorption-mass spectrometry. Various simple amides and isocyanates are formed, showing the importance of ice chemistry for their interstellar formation. Constrained by experimental conditions, a reaction network is derived, showing possible formation pathways of these species under interstellar conditions. ",

keywords = "Astrobiology, Astrochemistry, methods: Laboratory",

author = "Ligterink, {N. F.W.} and {Van Scheltinga}, {J. Terwisscha} and V. Kofman and V. Taquet and S. Cazaux and J{\o}rgensen, {J. K.} and {Van Dishoeck}, {E. F.} and H. Linnartz",

year = "2020",

doi = "10.1017/S1743921320000010",

language = "English",

volume = "15",

pages = "216--219",

journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

note = "White Dwarfs as Probes of Fundamental Physics: Tracers of Planetary, Stellar and Galactic Evolution, IAU 357 ; Conference date: 21-10-2019 Through 25-10-2019",

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T1 - The formation of the building blocks of peptides on interstellar dust grains

AU - Ligterink, N. F.W.

AU - Van Scheltinga, J. Terwisscha

AU - Kofman, V.

AU - Taquet, V.

AU - Cazaux, S.

AU - Jørgensen, J. K.

AU - Van Dishoeck, E. F.

AU - Linnartz, H.

PY - 2020

Y1 - 2020

N2 - The emergence of life on Earth may have its origin in organic molecules formed in the interstellar medium. Molecules with amide and isocyanate groups resemble structures found in peptides and nucleobases and are necessary for their formation. Their formation is expected to take place in the solid state, on icy dust grains, and is studied here by far-UV irradiating a CH4:HNCO mixture at 20 K in the laboratory. Reaction products are detected by means of infrared spectroscopy and temperature programmed desorption-mass spectrometry. Various simple amides and isocyanates are formed, showing the importance of ice chemistry for their interstellar formation. Constrained by experimental conditions, a reaction network is derived, showing possible formation pathways of these species under interstellar conditions.

AB - The emergence of life on Earth may have its origin in organic molecules formed in the interstellar medium. Molecules with amide and isocyanate groups resemble structures found in peptides and nucleobases and are necessary for their formation. Their formation is expected to take place in the solid state, on icy dust grains, and is studied here by far-UV irradiating a CH4:HNCO mixture at 20 K in the laboratory. Reaction products are detected by means of infrared spectroscopy and temperature programmed desorption-mass spectrometry. Various simple amides and isocyanates are formed, showing the importance of ice chemistry for their interstellar formation. Constrained by experimental conditions, a reaction network is derived, showing possible formation pathways of these species under interstellar conditions.

KW - Astrobiology

KW - Astrochemistry

KW - methods: Laboratory

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DO - 10.1017/S1743921320000010

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VL - 15

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EP - 219

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

T2 - White Dwarfs as Probes of Fundamental Physics: Tracers of Planetary, Stellar and Galactic Evolution

Y2 - 21 October 2019 through 25 October 2019

ER -

The formation of the building blocks of peptides on interstellar dust grains

Abstract

Keywords

UN SDGs

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