Clathrate hydrates in interstellar environment

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Ghosh J, Methikkalam RRJ, Bhuin RG, Ragupathy G, Choudhary N, Kumar R, Pradeep T
Zeitschrift: Proceedings of the National Academy of Sciences
Jahr der Veröffentlichung: 2019
Band: 116
Heftnummer: 5
Seitenbereich: 1526-1531
ISSN: 0027-8424
eISSN: 1091-6490


Abstract

Clathrate hydrates (CHs) are ubiquitous in earth under high-pressure conditions, but their existence in the interstellar medium (ISM) remains unknown. Here, we report experimental observations of the formation of methane and carbon dioxide hydrates in an environment analogous to ISM. Thermal treatment of solid methane and carbon dioxide–water mixture in ultrahigh vacuum of the order of 10
−10
mbar for extended periods led to the formation of CHs at 30 and 10 K, respectively. High molecular mobility and H bonding play important roles in the entrapment of gases in the in situ formed 5
12
CH cages. This finding implies that CHs can exist in extreme low-pressure environments present in the ISM. These hydrates in ISM, subjected to various chemical processes, may act as sources for relevant prebiotic molecules.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Bhuin, Radha Gobinda
Lehrstuhl für Physikalische Chemie II


Einrichtungen weiterer Autorinnen und Autoren

Indian Institute of Technology Madras


Zitierweisen

APA:
Ghosh, J., Methikkalam, R.R.J., Bhuin, R.G., Ragupathy, G., Choudhary, N., Kumar, R., & Pradeep, T. (2019). Clathrate hydrates in interstellar environment. Proceedings of the National Academy of Sciences, 116(5), 1526-1531. https://dx.doi.org/10.1073/pnas.1814293116

MLA:
Ghosh, Jyotirmoy, et al. "Clathrate hydrates in interstellar environment." Proceedings of the National Academy of Sciences 116.5 (2019): 1526-1531.

BibTeX: 

Zuletzt aktualisiert 2019-09-05 um 08:23