Publication:
Studying the onset of deconfinement with multi-messenger astronomy of neutron stars

Файлы
W3126575960.pdf(1.88 MB)
Дата
2021
Авторы
Cierniak, M.
Blaschke, D.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Организационные подразделения
OrgUnit Logo
Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
Выпуск журнала
Аннотация
© 2021 Wiley-VCH GmbHWith the first multi-messenger observation of a binary neutron star merger (GW170817), new constraints became available for masses and radii of neutron stars. We introduce a class of hybrid EoS that fulfills all these constraints and predicts a region in the mass-radius diagram that could be populated only by hybrid neutron stars with quark matter cores. A confirmation of this conjecture would be provided when the NICER radius measurement for the high-mass pulsar PSR J0740 + 6620 yields a radius significantly less than 11 km. Would this radius measurement yield a result in excess of 12 km, this would allow for both, a purely hadronic and a hybrid nature of this star. In the latter case, the maximum mass could reach 2.6 M⊙ so that the lighter object in the asymmetric binary merger GW190814 could have been a hybrid star. We demonstrate that this high mass can be compatible with an early onset of deconfinement for stars with masses below 1 M⊙ and the occurrence of low-mass twin stars. In such a case, the remnant of GW170817 could be a long-lived hypermassive pulsar.
Описание
Ключевые слова
Цитирование
Cierniak, M. Studying the onset of deconfinement with multi-messenger astronomy of neutron stars / Cierniak, M., Blaschke, D. // Astronomische Nachrichten. - 2021. - 10.1002/asna.202113909
URI
https://www.doi.org/10.1002/asna.202113909
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85100598753&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000615704200001
 https://openrepository.mephi.ru/handle/123456789/23657
Коллекции
Публикации