Tying the Geometrical Traits of Massive Young Stellar Objects and Their Disks to a Potential Evolutionary Sequence Using Infrared Observations

Tying the Geometrical Traits of Massive Young Stellar Objects and Their Disks to a Potential Evolutionary Sequence Using Infrared Observations

Abstract Young massive stars influence their surroundings from local to galactic scales, but the observational challenges associated with their distance and embedded nature has, until the recent decade, made high-resolution studies of these objects difficult. In particular, comparative analyses of m...

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Published in:The Astrophysical journal 2021-10, Vol.920 (1), p.48
Main Authors: Frost, A. J., Oudmaijer, R. D., Lumsden, S. L., de Wit, W. J.
Format: Article
Language:eng
Subjects:
Circumstellar disks
Dispersal
Infrared astronomy
Infrared spectra
Interferometry
Massive stars
Near infrared radiation
Observational astronomy
Star formation
Stellar evolution
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recordid cdi_iop_journals_10_3847_1538_4357_ac1741
title Tying the Geometrical Traits of Massive Young Stellar Objects and Their Disks to a Potential Evolutionary Sequence Using Infrared Observations
format Article
creator Frost, A. J.
Oudmaijer, R. D.
Lumsden, S. L.
de Wit, W. J.
subjects Circumstellar disks
Dispersal
Infrared astronomy
Infrared spectra
Interferometry
Massive stars
Near infrared radiation
Observational astronomy
Star formation
Stellar evolution
ispartof The Astrophysical journal, 2021-10, Vol.920 (1), p.48
description Abstract Young massive stars influence their surroundings from local to galactic scales, but the observational challenges associated with their distance and embedded nature has, until the recent decade, made high-resolution studies of these objects difficult. In particular, comparative analyses of massive young stellar object (MYSO) disks are currently lacking and our understanding of their evolution is limited. Here, we combine the results of two studies with the aim to attribute geometrical features to an evolutionary sequence for a sample of seven MYSOs. The time evolution is based on near-infrared spectral features, while the geometry is determined from a multi-size-scale study of MYSOs. We find that MYSO disks with determined geometrical substructure turn out to be also spectroscopically more evolved. This implies that disk evolution and dispersal occur within MYSOs similarly to low-mass young stellar object (YSO) disk evolution, despite their faster formation timescales.
language eng
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identifier ISSN: 0004-637X
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