Rivilla, Víctor M. and Colzi, Laura and Jiménez-Serra, Izaskun and Martín-Pintado, Jesús and Megías, Andrés and Melosso, Mattia and Bizzocchi, Luca and López-Gallifa, Álvaro and Martínez-Henares, Antonio and Massalkhi, Sarah and Tercero, Belén and de Vicente, Pablo and Guillemin, Jean-Claude and García de la Concepción, Juan and Rico-Villas, Fernando and Zeng, Shaoshan and Martín, Sergio and Requena-Torres, Miguel A. and Tonolo, Francesca and Alessandrini, Silvia and Dore, Luca and Barone, Vincenzo and Puzzarini, Cristina (2022) Precursors of the RNA World in Space: Detection of (Z)-1,2-ethenediol in the Interstellar Medium, a Key Intermediate in Sugar Formation. The Astrophysical Journal Letters, 929 (1). L11. ISSN 2041-8205
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Abstract
We present the first detection of (Z)-1,2-ethenediol, (CHOH)2, the enol form of glycolaldehyde, in the interstellar medium toward the G+0.693−0.027 molecular cloud located in the Galactic Center. We have derived a column density of (1.8 ± 0.1) × 1013 cm−2, which translates into a molecular abundance with respect to molecular hydrogen of 1.3 × 10−10. The abundance ratio between glycolaldehyde and (Z)-1,2-ethenediol is ∼5.2. We discuss several viable formation routes through chemical reactions from precursors such as HCO, H2CO, CHOH, or CH2CHOH. We also propose that this species might be an important precursor in the formation of glyceraldehyde (HOCH2CHOHCHO) in the interstellar medium through combination with the hydroxymethylene (CHOH) radical.
| Item Type: | Article |
|---|---|
| Subjects: | Bengali Archive > Medical Science |
| Depositing User: | Unnamed user with email support@bengaliarchive.com |
| Date Deposited: | 28 Apr 2023 06:42 |
| Last Modified: | 24 Sep 2024 11:29 |
| URI: | http://science.archiveopenbook.com/id/eprint/965 |
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