Fragmentation and molecular outflows in the IRDC core G34.43+00.24 MM1

Massive star formation takes place in molecular hot cores which are the result of the fragmentation of massive clumps. The infrared dark cloud G34.43+00.24, which exhibits a filamentary structure, is located at a distance of about 3.6 kpc. This cloud harbours nine molecular cores, named MM1 through...

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Autores principales: Isequilla, Natacha Laura, Areal, M. B., Ortega, M. E., Paron, S.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Ciencias Astronómicas
stars: formation
ISM: molecules
ISM: jets and outflows
ISM: individual objects
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/168925
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-168925
record_format dspace
spelling I19-R120-10915-1689252024-08-22T20:02:17Z http://sedici.unlp.edu.ar/handle/10915/168925 Fragmentation and molecular outflows in the IRDC core G34.43+00.24 MM1 Isequilla, Natacha Laura Areal, M. B. Ortega, M. E. Paron, S. 2021 2024-08-22T15:58:47Z en Ciencias Astronómicas stars: formation ISM: molecules ISM: jets and outflows ISM: individual objects Massive star formation takes place in molecular hot cores which are the result of the fragmentation of massive clumps. The infrared dark cloud G34.43+00.24, which exhibits a filamentary structure, is located at a distance of about 3.6 kpc. This cloud harbours nine molecular cores, named MM1 through MM9, at different evolutionary stages. This work presents a study of the internal structure of the core MM1 carried out with high angular resolution observations at 93 GHz obtained from the ALMA database. The radio continuum emission shows signatures of fragmentation of the core, and the HCO+ J=l-0 emission confirms, with the better angular resolution at the present, the presence of two perpendicular molecular outflows arising from MM1. La fragmentación de grumos de alta masa en los interiores de las nubes moleculares puede dar lugar a la generación de estrellas de alta masa. La nube molecular oscura en el infrarrojo G34.43+00.24, de morfología filamentaria, está ubicada a una distancia aproximadamente de 3.6 kpc. Dicha nube contiene al menos nueve núcleos moleculares denominados MM1 hasta MM9, los cuales se encuentran en distintas; gtapas evolutivas de formación estelar. En este trabajo se presenta un estudio de la estructura interna del núcleo MM1 llevado a cabo con observaciones de alta resolución angular a 93 GHz obtenidas de la base de datos de ALMA. En el continuo de radio se encontró evidencia de fragmentación del núcleo y en la emisión del HCO+ J=l-0 se confirmó, con la mejor resolución angular hasta el momento, la presencia de dos outflows moleculares perpendiculares surgiendo de MM1. Asociación Argentina de Astronomía Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 137-139
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
stars: formation
ISM: molecules
ISM: jets and outflows
ISM: individual objects
spellingShingle Ciencias Astronómicas
stars: formation
ISM: molecules
ISM: jets and outflows
ISM: individual objects
Isequilla, Natacha Laura
Areal, M. B.
Ortega, M. E.
Paron, S.
Fragmentation and molecular outflows in the IRDC core G34.43+00.24 MM1
topic_facet Ciencias Astronómicas
stars: formation
ISM: molecules
ISM: jets and outflows
ISM: individual objects
description Massive star formation takes place in molecular hot cores which are the result of the fragmentation of massive clumps. The infrared dark cloud G34.43+00.24, which exhibits a filamentary structure, is located at a distance of about 3.6 kpc. This cloud harbours nine molecular cores, named MM1 through MM9, at different evolutionary stages. This work presents a study of the internal structure of the core MM1 carried out with high angular resolution observations at 93 GHz obtained from the ALMA database. The radio continuum emission shows signatures of fragmentation of the core, and the HCO+ J=l-0 emission confirms, with the better angular resolution at the present, the presence of two perpendicular molecular outflows arising from MM1.
format Articulo
Articulo
author Isequilla, Natacha Laura
Areal, M. B.
Ortega, M. E.
Paron, S.
author_facet Isequilla, Natacha Laura
Areal, M. B.
Ortega, M. E.
Paron, S.
author_sort Isequilla, Natacha Laura
title Fragmentation and molecular outflows in the IRDC core G34.43+00.24 MM1
title_short Fragmentation and molecular outflows in the IRDC core G34.43+00.24 MM1
title_full Fragmentation and molecular outflows in the IRDC core G34.43+00.24 MM1
title_fullStr Fragmentation and molecular outflows in the IRDC core G34.43+00.24 MM1
title_full_unstemmed Fragmentation and molecular outflows in the IRDC core G34.43+00.24 MM1
title_sort fragmentation and molecular outflows in the irdc core g34.43+00.24 mm1
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/168925
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AT arealmb fragmentationandmolecularoutflowsintheirdccoreg34430024mm1
AT ortegame fragmentationandmolecularoutflowsintheirdccoreg34430024mm1
AT parons fragmentationandmolecularoutflowsintheirdccoreg34430024mm1
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