Dissipative kinematics in binary neutron star mergers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00588236" target="_blank" >RIV/68378271:_____/24:00588236 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0355297" target="_blank" >https://hdl.handle.net/11104/0355297</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/universe10070303" target="_blank" >10.3390/universe10070303</a>
Alternative languages
Result language
angličtina
Original language name
Dissipative kinematics in binary neutron star mergers
Original language description
We highlight recent progress in calculating transport coefficients relevant to binary neutron star mergers. We analyze bulk viscosity driven by DURCA and MURCA processes and electron transport coefficients in dense, hot plasma pertinent to mergers. The study considers high temperatures ($T > 6 imes 10^{10}$ K) and dense environments ($n_B sim n_0 - 3n_0$). Bulk viscosity shows resonant behavior, with peak values and positions dependent on particle interaction rates and thermodynamic susceptibilities, calculated using a density functional approach. The bulk viscosity peaks at $T sim 10^{11}$ K, with a dissipation time scale of $20-50$ ms for compression-rarefaction oscillations. Electrical transports incorporate frequency-dependent dynamical screening in quantized electron-ion scattering rates, reducing the maxima of electrical and thermal conductivities and shortening dissipation time scales, thereby underscoring crucial role of dissipation coefficients in understanding mergers.
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
10304 - Nuclear physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Universe
ISSN
2218-1997
e-ISSN
2218-1997
Volume of the periodical
10
Issue of the periodical within the volume
7
Country of publishing house
CH - SWITZERLAND
Number of pages
16
Pages from-to
303
UT code for WoS article
001278725100001
EID of the result in the Scopus database
2-s2.0-85199900078