The effect of the environment-dependent IMF on the formation and metallicities of stars over the cosmic history
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00533939" target="_blank" >RIV/67985815:_____/20:00533939 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202037688" target="_blank" >https://doi.org/10.1051/0004-6361/202037688</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202037688" target="_blank" >10.1051/0004-6361/202037688</a>
Alternative languages
Result language
angličtina
Original language name
The effect of the environment-dependent IMF on the formation and metallicities of stars over the cosmic history
Original language description
We present the first study aiming to evaluate the effect of the IMF variations on the measured cosmic SFR density (SFRD) as a function of metallicity and redshift, f(SFR)(Z, z). We also study the expected number and metallicity of white dwarf, neutron star, and black hole progenitors under different IMF assumptions. Applying the empirically driven IMF variations described by the integrated galactic IMF (IGIMF) theory, we revise f(SFR)(Z, z) obtained in our previous study that assumed a universal IMF. We find a lower SFRD at high redshifts and a higher fraction of metal-poor stars being formed than previously determined. In the local Universe, our calculation applying the IGIMF theory suggests more white dwarf and neutron star progenitors in comparison with the universal IMF scenario, while the number of black hole progenitors remains unaffected.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
—
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
Astronomy & Astrophysics
ISSN
1432-0746
e-ISSN
—
Volume of the periodical
636
Issue of the periodical within the volume
April
Country of publishing house
FR - FRANCE
Number of pages
14
Pages from-to
A10
UT code for WoS article
000524395700002
EID of the result in the Scopus database
2-s2.0-85083423872