A correlation between the number of satellites and the bulge-to-total baryonic mass ratio extending beyond the Local Group
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10423392" target="_blank" >RIV/00216208:11320/20:10423392 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=qadz0f0Lzz" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=qadz0f0Lzz</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnrasl/slaa001" target="_blank" >10.1093/mnrasl/slaa001</a>
Alternative languages
Result language
angličtina
Original language name
A correlation between the number of satellites and the bulge-to-total baryonic mass ratio extending beyond the Local Group
Original language description
Recent observations of the fields surrounding a few Milky Way-like galaxies in the local Universe have become deep enough to enable investigations of the predictions of the standard lambda cold dark matter (ACDM) cosmological model down to small scales outside the Local Group (LG). Motivated by an observed correlation between the number of dwarf satellites (N-sat) and the bulge-to-total baryonic mass ratios (B/T) of the three main galaxies in the LG, i.e. the Milky Way, Andromeda, and Triangulum (M33), we use published data of three well-studied galaxies outside the LG, namely M81, Centaurus A, and M101, and their confirmed satellites, and we find a strong and significant correlation between N-sat and B/T. This presents itself in contradiction with the hitherto published results from cosmological simulations reporting an absence of a correlation between N-sat and B/T in the ACDM model. We conclude that, based on the current data, the N-sat versus B/T correlation is no longer a property confined to only the LG.
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
2020
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
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Volume of the periodical
493
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
5
Pages from-to
"L44"-"L48"
UT code for WoS article
000525755000009
EID of the result in the Scopus database
2-s2.0-85081265369