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Chemical complexity in high-mass star formation: An observational and modeling case-study of the AFGL2591 VLA3 hot core

Gieser, C., Semenov, D., Beuther, H., Ahmadi, A., Mottram, J.C., Henning, Th., Beltran, M., Maud, L.T., Bosco, F., Leurini, S., and others. (2019) Chemical complexity in high-mass star formation: An observational and modeling case-study of the AFGL2591 VLA3 hot core. Astronomy and Astrophysics, . ISSN 0004-6361. (In press)

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Abstract

Aims. In order to understand the observed molecular diversity in high-mass star-forming regions, one has to discern the underlying physical and

is a target region of the NOrthern Extended Millimeter Array (NOEMA) large program CORE. Using NOEMA observations at 1.37mm with

molecular abundances with the chemical evolution code MUSCLE (MUlti Stage ChemicaL codE).

Results. With the kinetic temperature tracers CH3CN and H2CO we observe a temperature distribution with a power-law index of q = 0:41+- 0:08.

high molecular abundances and a rich diversity in complex molecules. The majority of the molecules have an asymmetric spatial distribution around

molecular abundance of 10 out of 14 modeled species at an estimated hot core chemical age of ~21 100 years. In contrast to the observational

and chemical structure of the famous AFGL 2591 hot core. The next steps are to conduct similar analysis for the whole CORE sample and by that

constrain the chemical diversity in high-mass star formation to much greater depth.

Item Type: Article
Uncontrolled keywords: ISM, individual objects, AFGL 2591, Astrochemistry, ISM: molecules, Stars: massive
Divisions: Faculties > Sciences > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: James Urquhart
Date Deposited: 16 Sep 2019 08:16 UTC
Last Modified: 16 Sep 2019 08:35 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/76481 (The current URI for this page, for reference purposes)
Urquhart, J.S.: https://orcid.org/0000-0002-1605-8050
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