Kinematic clues to the origins of starless H I clouds: dark galaxies or tidal debris?

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00484375" target="_blank" >RIV/67985815:_____/17:00484375 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1093/mnras/stx187" target="_blank" >http://dx.doi.org/10.1093/mnras/stx187</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/stx187" target="_blank" >10.1093/mnras/stx187</a>

Result language
angličtina
Original language name
Kinematic clues to the origins of starless H I clouds: dark galaxies or tidal debris?
Original language description
We numerically model the passage of a galaxy through the gravitational field of cluster. The galaxy consists of smoothed particle hydrodynamics particles for the gas and N-bodies for the stars and dark matter, while the cluster includes the gravitational effects of substructure using 400 subhaloes (the effects of the intracluster medium are ignored). We find that harassment can indeed produce long HI streams and these streams can include kinematic features resembling dark galaxy candidates such as VIRGOHI21. We also show that apparent clouds with diameter < 20 kpc and velocity widths < 50 km s(-1) are almost invariably produced in these simulations, making tidal debris a highly probable explanation. In contrast, we show that the frequency of isolated clouds of the same size but velocity width > 100 km s(-1) is negligible - making this a very unlikely explanation for the observed clouds in the Virgo cluster with these properties.
Czech name
—
Czech description
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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)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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