Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/111386
Title: The Link between Gas and Stars in the S254-S258 Star-forming Region
Authors: Ladeyschikov, D. A.
Kirsanova, M. S.
Sobolev, A. M.
Thomasson, M.
Ossenkopf-Okada, V.
Juvela, M.
Khaibrakhmanov, S. A.
Popova, E. A.
Issue Date: 2021
Publisher: Oxford University Press
Oxford University Press (OUP)
Citation: The Link between Gas and Stars in the S254-S258 Star-forming Region / D. A. Ladeyschikov, M. S. Kirsanova, A. M. Sobolev et al. — DOI 10.31577/WLS.2021.13.3.9 // Monthly Notices of the Royal Astronomical Society. — 2021. — Vol. 506. — Iss. 3. — P. 4447-4464.
Abstract: The paper aims to study relation between the distributions of the young stellar objects (YSOs) of different ages and the gas-dust constituents of the S254-S258 star formation complex. This is necessary to study the time evolution of the YSO distribution with respect to the gas and dust compounds that are responsible for the birth of the young stars. For this purpose, we use correlation analysis between different gas, dust, and YSO tracers. We compared the large-scale CO, HCO+, near-IR extinction, and far-IR Herschel maps with the density of YSOs of the different evolutionary classes. The direct correlation analysis between these maps was used together with the wavelet-based spatial correlation analysis. This analysis reveals a much tighter correlation of the gas-dust tracers with the distribution of class I YSOs than with that of class II YSOs. We argue that class I YSOs that were initially born in the central bright cluster S255-IR (both N and S parts) during their evolution to class II stage (∼2 Myr) had enough time to travel through the whole S254-S258 star formation region. Given that the region contains several isolated YSO clusters, the evolutionary link between these clusters and the bright central S255-IR (N and S) cluster can be considered. Despite the complexity of the YSO cluster formation in the non-uniform medium, the clusters of class II YSOs in the S254-258 star formation region can contain objects born in the different locations of the complex. © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
Keywords: DUST, EXTINCTION
H II REGIONS
ISM: CLOUDS
STARS: PROTOSTARS
URI: http://hdl.handle.net/10995/111386
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85119134213
PURE ID: 28947574
ISSN: 0035-8711
DOI: 10.31577/WLS.2021.13.3.9
metadata.dc.description.sponsorship: The work of DAL and SAK on correlation analysis in Section 4 was supported by the Russian Science Foundation (RSF) grant 19-72-10012. The work of MSK in the Section 2.1 was supported by the Russian Foundation for Basic Research (RFBR) grant 20-02-00643. The work by DAL in Section 3 was supported by the Russian Ministry of Science and Higher Education, No. FEUZ-2020-0030. The work of AMS in Section 5 was supported by the Large Scientific Project of the Russian Ministry of Science and Higher Education 'Theoretical and experimental studies of the formation and evolution of extrasolar planetary systems and characteristics of exoplanets' (No. 075-15-2020-780, contract 780-10). VO was supported by the Collaborative Research Centre 956, sub-project C1, funded by the Deutsche Forschungsgemeinschaft (DFG), project ID 184018867. The authors acknowledges support from Onsala Space Observatory for the provisioning of its facilities/observational support. The Onsala Space Observatory national research infrastructure is funded through Swedish Research Council grant No. 2017-00648.
RSCF project card: 19-72-10012
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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