Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/234036

COMPARTIR / EXPORTAR:

SHARE CORE BASE	Comparte tu historia de Acceso Abierto
Visualizar otros formatos: MARC \| Dublin Core \| RDF \| ORE \| MODS \| METS \| DIDL \| DATACITE
Refman EndNote Bibtex RefWorks Excel CSV PDF DataCite Send via email

Título:	FAUST I. The hot corino at the heart of the prototypical Class i protostar L1551 IRS5
Autor:	Bianchi, E.; Jiménez-Serra, Izaskun CSIC ORCID; Yamamoto, S.
Fecha de publicación:	2020
Citación:	Monthly Notices of the Royal Astronomical Society: Letters 498: L87- L92 (2020)
Resumen:	The study of hot corinos in solar-like protostars has been so far mostly limited to the Class 0 phase, hampering our understanding of their origin and evolution. In addition, recent evidence suggests that planet formation starts already during Class I phase, which therefore represents a crucial step in the future planetary system chemical composition. Hence, the study of hot corinos in Class I protostars has become of paramount importance. Here, we report the discovery of a hot corino towards the prototypical Class I protostar L1551 IRS5, obtained within the ALMA (Atacama Large Millimeter/submillimeter Array) Large Program FAUST (Fifty AU STudy of the chemistry in the disc/envelope system of solar-like protostars).We detected several lines from methanol and its isotopologues (13CH3OH and CH2DOH), methyl formate, and ethanol. Lines are bright towards the north component of the IRS5 binary system, and a possible second hot corino may be associated with the south component. The methanol lines' non-LTE analysis constrains the gas temperature (100 K), density (1.5 × 108 cm3), and emitting size (10 au in radius). All CH3OH and 13CH3OH lines are optically thick, preventing a reliable measure of the deuteration. The methyl formate and ethanol relative abundances are compatible with those measured in Class 0 hot corinos. Thus, based on this work, little chemical evolution from Class 0 to I hot corinos occurs.
Descripción:	.-- Bianchi, E. et al.
Versión del editor:	http://dx.doi.org/10.1093/mnrasl/slaa130
URI:	http://hdl.handle.net/10261/234036
DOI:	10.1093/mnrasl/slaa130
Identificadores:	doi: 10.1093/mnrasl/slaa130 issn: 1745-3933
Aparece en las colecciones:	(CAB) Artículos