BPS Skyrmions as neutron stars

2015
journal article
article
51
50
cris.lastimport.scopus2024-04-24T05:45:34Z
cris.lastimport.wos2024-04-10T01:02:05Z
dc.abstract.enThe BPS Skyrme model has been demonstrated already to provide a physically intriguing and quantitatively reliable description of nuclear matter. Indeed, the model has both the symmetries and the energy–momentum tensor of a perfect fluid, and thus represents a field theoretic realization of the “liquid droplet” model of nuclear matter. In addition, the classical soliton solutions together with some obvious corrections (spin–isospin quantization, Coulomb energy, proton–neutron mass difference) provide an accurate modeling of nuclear binding energies for heavier nuclei. These results lead to the rather natural proposal to try to describe also neutron stars by the BPS Skyrme model coupled to gravity. We find that the resulting self-gravitating BPS Skyrmions provide excellent results as well as some new perspectives for the description of bulk properties of neutron stars when the parameter values of the model are extracted from nuclear physics. Specifically, the maximum possible mass of a neutron star before black-hole formation sets in is a few solar masses, the precise value of which depends on the precise values of the model parameters, and the resulting neutron star radius is of the order of 10 km.pl
dc.affiliationWydziaƂ Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorAdam, Christophpl
dc.contributor.authorNaya, C.pl
dc.contributor.authorSanchez-Guillen, Joaquinpl
dc.contributor.authorVazquez, R.pl
dc.contributor.authorWereszczyƄski, Andrzej - 132581 pl
dc.date.accessioned2015-04-25T09:00:40Z
dc.date.available2015-04-25T09:00:40Z
dc.date.issued2015pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.physical136-142pl
dc.description.publication0,5pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume742pl
dc.identifier.doi10.1016/j.physletb.2015.01.027pl
dc.identifier.eissn1873-2445pl
dc.identifier.issn0370-2693pl
dc.identifier.projectROD UJ / Ppl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/5734
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subtypeArticlepl
dc.titleBPS Skyrmions as neutron starspl
dc.title.journalPhysics Letters. Bpl
dc.typeJournalArticlepl
dspace.entity.typePublication
Affiliations

* The migration of download and view statistics prior to the date of April 8, 2024 is in progress.

Views
0
Views per month
Downloads
adam_naya_sanchez-guillen_vazquez_wereszczynski_bps_skyrmions_as_neutron_stars_2015.pdf
2