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ALMA observations of the environments of G333.0162+00.7615

Published online by Cambridge University Press:  09 June 2023

Toktarkhan Komesh Open the ORCID record for Toktarkhan Komesh [Opens in a new window] ,
Aruzhan Omar ,
Guido Garay ,
Zhandos Assembay ,
Nazgul Alimgazinova ,
Nurman Zhumabay  and
Meiramgul Kyzgarina
Toktarkhan Komesh
Affiliation:
Energetic Cosmos Laboratory, Nazarbayev University, Astana 010000, Kazakhstan email: toktarkhan.komesh@nu.edu.kz Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
Aruzhan Omar
Affiliation:
Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
Guido Garay
Affiliation:
Departamento de Astronomía, Universidad de Chile, Las Condes, Santiago 7550000, Chile
Zhandos Assembay
Affiliation:
Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
Nazgul Alimgazinova
Affiliation:
Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
Nurman Zhumabay
Affiliation:
Abay Kazakh National Pedagogical University, Almaty 050010, Kazakhstan
Meiramgul Kyzgarina
Affiliation:
Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
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Abstract

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We have carried out ALMA observations toward the environments of G333.0162+00.7615 which was considered as a candidate of high-mass young stellar object (HMYSO) in previous studies. Our dust continuum, molecular line emission and radio recombination line emission observations show that this source is not HMYSO associated with hypercompact (HC) HII regions. Instead, we discovered two new hot cores associate with earliest stages of high mass star formation region. We estimated the rotational temperatures of these cores about 270 K from J=14→13 rotational transition of CH3CN ladder. The moment maps show velocity gradients confirming that this cores are rotating.

Keywords

ISM: moleculesISM: cloudsISM: coresstars: formationstars: massiveISM: kinematics and dynamics
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 17 , Symposium S373: Resolving the Rise and Fall of Star Formation in Galaxies (Aug 2022) , August 2021 , pp. 35 - 38
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

References

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