The burst mode of accretion in massive star formation with stellar inertia
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
The burst mode of accretion in massive star formation with stellar inertia
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| Автор |
Meyer, D. M. -A.
Vorobyov, E. I. Elbakyan, V. G. Kraus, S. Liu, S. -Y. Nayakshin, S. Sobolev, A. M. |
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| Тематика |
METHODS: NUMERICAL
RADIATIVE TRANSFER STARS: CIRCUMSTELLAR MATTER MILLIMETER WAVES STARS BURST-MODE GRAVITATIONAL COLLAPSE GRAVITATIONAL INSTABILITY MASSIVE STARS METHOD: NUMERICAL PRESTELLAR CORES PROPERTY STARS FORMATION STARS:CIRCUMSTELLAR MATTER STELLARS NUMERICAL METHODS |
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| Описание |
The burst mode of accretion in massive star formation is a scenario linking the initial gravitational collapse of parent pre-stellar cores to the properties of their gravitationally unstable discs and of their accretion-driven bursts. In this study, we present a series of high-resolution 3D radiation-hydrodynamics numerical simulations for young massive stars formed out of collapsing 100M⊙ molecular cores, spinning with several values of the ratio of rotational-to-gravitational energies β =5-9\percent. The models include the indirect gravitational potential caused by disc asymmetries. We find that this modifies the barycentre of the disc, causing significant excursions of the central star position, which we term stellar wobbling. The stellar wobbling slows down and protracts the development of gravitational instability in the disc, reducing the number and magnitude of the accretion-driven bursts undergone by the young massive stars, whose properties are in good agreement with that of the burst monitored from the massive protostar M17 MIR. Including stellar wobbling is therefore important for accurate modelling disc structures. Synthetic alma interferometric images in the millimetre waveband show that the outcomes of efficient gravitational instability such as spiral arms and gaseous clumps can be detected for as long as the disc is old enough and has already entered the burst mode of accretion. © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
Horizon 2020 Framework Programme, H2020, (101003096) Science and Technology Facilities Council, STFC, (ST/N000757/1) University of Leicester, UoL Ministry of Education and Science of the Russian Federation, Minobrnauka, (075-15-2020-780) V.G. Elbakyan acknowledges support from STFC grants ST/N000757/1 to the University of Leicester. E. I. V. and A. M. S. acknowledge support of Ministry of Science and Higher Education of the Russian Federation under the grant 075-15-2020-780. |
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| Дата |
2024-04-08T11:06:45Z
2024-04-08T11:06:45Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) info:eu-repo/semantics/acceptedVersion |
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| Идентификатор |
Meyer, DM-A, Vorobyov, EI, Elbakyan, VG, Kraus, S, Liu, S-Y, Nayakshin, S & Sobolev, AM 2022, 'The burst mode of accretion in massive star formation with stellar inertia', Monthly Notices of the Royal Astronomical Society, Том. 517, № 4, стр. 4795-4812. https://doi.org/10.1093/mnras/stac2956
Meyer, D. M-A., Vorobyov, E. I., Elbakyan, V. G., Kraus, S., Liu, S-Y., Nayakshin, S., & Sobolev, A. M. (2022). The burst mode of accretion in massive star formation with stellar inertia. Monthly Notices of the Royal Astronomical Society, 517(4), 4795-4812. https://doi.org/10.1093/mnras/stac2956 0035-8711 Final All Open Access; Green Open Access https://ore.exeter.ac.uk/repository/bitstream/10871/131340/2/stac2956.pdf https://ore.exeter.ac.uk/repository/bitstream/10871/131340/2/stac2956.pdf http://elar.urfu.ru/handle/10995/131344 10.1093/mnras/stac2956 85145353953 000898831500006 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
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| Формат |
application/pdf
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| Издатель |
Oxford University Press
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| Источник |
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society |
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