CATCH ME IF YOU CAN: IS THERE A "RUNAWAY-MASS" BLACK HOLE IN THE ORION NEBULA CLUSTER?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10129560" target="_blank" >RIV/00216208:11320/12:10129560 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0004-637X/757/1/37" target="_blank" >http://dx.doi.org/10.1088/0004-637X/757/1/37</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-637X/757/1/37" target="_blank" >10.1088/0004-637X/757/1/37</a>

Result language

angličtina

Original language name

CATCH ME IF YOU CAN: IS THERE A "RUNAWAY-MASS" BLACK HOLE IN THE ORION NEBULA CLUSTER?

Original language description

We investigate the dynamical evolution of the Orion Nebula Cluster (ONC) by means of direct N-body integrations. A large fraction of residual gas was probably expelled when the ONC formed, so we assume that the ONC was much more compact when it formed compared with its current size, in agreement with the embedded cluster radius-mass relation from Marks & Kroupa. Hence, we assume that few-body relaxation played an important role during the initial phase of evolution of the ONC. In particular, three-bodyinteractions among OB stars likely led to their ejection from the cluster and, at the same time, to the formation of a massive object via "runaway" physical stellar collisions. The resulting depletion of the high-mass end of the stellar mass function inthe cluster is one of the important points where our models fit the observational data. We speculate that the runaway-mass star may have collapsed directly into a massive black hole (M center dot greater than or similar to 100 M-circle do

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

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Volume of the periodical

757

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

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UT code for WoS article

000309052800037

EID of the result in the Scopus database

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