Are the ONC, Pleiades, and Hyades snapshots of the same embedded cluster?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10509919" target="_blank" >RIV/00216208:11320/25:10509919 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=bdXUOVAFO4" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=bdXUOVAFO4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/staf941" target="_blank" >10.1093/mnras/staf941</a>
Alternative languages
Result language
angličtina
Original language name
Are the ONC, Pleiades, and Hyades snapshots of the same embedded cluster?
Original language description
Using direct N-body simulations, we investigate the initial conditions and evolution of a star-forming region resembling the Orion Nebula Cluster (ONC) with the advanced nbody6 code. By varying the initial conditions, we aim to identify a model that closely aligns with observed parameters such as the half-mass radius, core radius, and total mass. Additionally, we examine the cluster's evolution over 800 Myr to determine whether it could reproduce the present-day properties of the Pleiades and Hyades along its evolutionary path. Under the influence of a Milky Way-like tidal field, the ONC experiences significant mass loss, primarily due to rapid gas expulsion, retaining approximately 47 per cent of its initial 4200 stars by about 100 Myr and only 9 per cent by about 700 Myr. These evolutionary stages closely match the properties of the Pleiades and Hyades, suggesting that an ONC-like cluster may have been their precursor. Additional models with varying degrees of primordial mass segregation indicate that the ONC likely had an initial half-mass radius of 0.2-0.3 pc, a total mass of 1200-2000 M-circle dot, and a high degree of mass segregation. Models with an initial stellar count of about N-in approximate to 4 x 10(3)- 5 x 10(3), rich in binaries and exhibiting mass segregation, show excellent agreement with observed cluster properties.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monthly Notices of the Royal Astronomical Society
ISSN
0035-8711
e-ISSN
1365-2966
Volume of the periodical
541
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
1753-1762
UT code for WoS article
001530929600001
EID of the result in the Scopus database
2-s2.0-105011477727