Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/269079
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Organic Molecules in Interstellar Space: Latest advances

AutorGuélin, Michel; Cernicharo, José CSIC ORCID
Palabras claveInterstellar matter (ISM)
Molecules—ISM
Galaxies
Astrochemistry
Radio astronomy
Prebiotic molecules
Fecha de publicación2-mar-2022
EditorFrontiers Media
CitaciónFrontiers in Astronomy and Space Sciences 9: 787567 (2022)
ResumenAlthough first considered as too diluted for the formation of molecules in-situ and too harsh an environment for their survival, the interstellar medium has turned out to host a rich palette of molecular species: to date, 256 species, not counting isotopologues, have been identified. The last decade, and more particularly the last 2 years, have seen an explosion of new detections, including those of a number of complex organic species, which may be dubbed as prebiotic. Organic molecules have been discovered not just in interstellar clouds from the Solar neighbourhood, but also throughout the Milky-Way, as well as in nearby galaxies, or some of the most distant quasars. These discoveries were made possible by the completion of large sub-millimetre and radio facilities. Equipped with new generation receivers, those instruments have provided the orders of magnitude leap in sensitivity required to detect the vanishingly weak rotational lines that allowed the molecule identifications. Last 2 years, 30 prebiotic molecules have been detected in TMC-1, a dustenshrouded gaseous cloud located at 400 light-years from the Sun in the Taurus constellation. Ten new molecular species, have been identified in the arm of a spiral galaxy seven billion light-yr distant, and 12 molecular species observed in a quasar at 11 billion light-yr. We present the latest spectral observations of this outlying quasar and discuss the implications of those detections in these 3 archetypal sources. The basic ingredients involved in the Miller-Urey experiment and related experiments (H2, H2O, CH4, NH3, CO, H2S, ... ) appeared early after the formation of the first galaxies and are widespread throughout the Universe. The chemical composition of the gas in distant galaxies seems not much different from that in the nearby interstellar clouds. It presumably comprises, like for TMC-1, aromatic rings and complex organic molecules putative precursors of the RNA nucleobases, except the lines of such complex species are too weak to be detected that far.
Descripción16 pags., 14 figs.
Versión del editorhttps://doi.org/10.3389/fspas.2022.787567
URIhttp://hdl.handle.net/10261/269079
DOI10.3389/fspas.2022.787567
ISSN2296-987X
Aparece en las colecciones: (CFMAC-IFF) Artículos




Ficheros en este ítem:
Fichero Descripción Tamaño Formato
Organic molecules.pdfArtículo principal4,56 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo

CORE Recommender

SCOPUSTM   
Citations

25
checked on 25-mar-2024

WEB OF SCIENCETM
Citations

22
checked on 28-feb-2024

Page view(s)

47
checked on 29-mar-2024

Download(s)

266
checked on 29-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


Este item está licenciado bajo una Licencia Creative Commons Creative Commons