NGC 4993, the shell galaxy host of GW170817: constraints on the recent galactic merger

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00535659" target="_blank" >RIV/67985815:_____/20:00535659 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/201935219" target="_blank" >https://doi.org/10.1051/0004-6361/201935219</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201935219" target="_blank" >10.1051/0004-6361/201935219</a>

Result language
angličtina
Original language name
NGC 4993, the shell galaxy host of GW170817: constraints on the recent galactic merger
Original language description
According to the analytical model of the evolution of the shell structure in the expected gravitational potential of NGC 4993, the galactic merger happened at least 200 Myr ago, with a probable time roughly around 400 Myr, and the estimates higher than 600 Myr being improbable. This constitutes the lower limit on the age of the binary neutron star, because the host galaxy was probably quenched even before the galactic merger, and the merger has likely shut down the star formation in the accreted galaxy. We roughly estimate the probability that the binary neutron star originates in the accreted galaxy to be around 30%.
Czech name
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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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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