Molecular clouds in the Cosmic Snake normal star-forming galaxy 8 billion years ago
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00539815" target="_blank" >RIV/67985815:_____/19:00539815 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41550-019-0874-0" target="_blank" >https://doi.org/10.1038/s41550-019-0874-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41550-019-0874-0" target="_blank" >10.1038/s41550-019-0874-0</a>
Alternative languages
Result language
angličtina
Original language name
Molecular clouds in the Cosmic Snake normal star-forming galaxy 8 billion years ago
Original language description
We search for GMCs in a typical Milky Way progenitor at z = 1.036. Using the Atacama Large Millimeter/submillimeter Array (ALMA), we mapped the CO(4-3) emission of this gravitationally lensed galaxy at high resolution, reading down to 30 parsecs, which is comparable to the resolution of CO observations of nearby galaxies(5). We identify 17 molecular clouds, characterized by masses, surface densities and supersonic turbulence all of which are 10-100 times higher than present-day analogues. These properties question the universality of GMCs(6) and suggest that GMCs inherit their properties from ambient interstellar medium. The measured cloud gas masses are similar to the masses of stellar clumps seen in the galaxy in comparable numbers(7). This corroborates the formation of molecular clouds by fragmentation of distant turbulent galactic gas disks(8,9), which then turn into stellar clumps ubiquitously observed in galaxies at 'cosmic noon' (ref.(10)).
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
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Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Astronomy
ISSN
2397-3366
e-ISSN
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Volume of the periodical
3
Issue of the periodical within the volume
12
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
1115-1121
UT code for WoS article
000501586100022
EID of the result in the Scopus database
2-s2.0-85073814986