Publication:
Existence of two-solar-mass neutron star constrains gravitational constant G(N) at strong field

dc.contributor.authorDobado González, Antonio
dc.contributor.authorLlanes Estrada, Felipe José
dc.contributor.authorOller, Jose Antonio
dc.date.accessioned2023-06-20T03:31:24Z
dc.date.available2023-06-20T03:31:24Z
dc.date.issued2012-01-20
dc.description©2012 American Physical Society. F.J.L.-E. thanks the Caja Madrid Program for Advanced Studies for a grant and the theory group at TU-Munich for its hospitality and support via the Exzellenzcluster Origin and Structure of the Universe. This work has been supported by Grants No. 227431-HadronPhysics2 (EU), No. Consolider-CSD2007-00042, No. AIC10-D-000582, No. FPA2008-00592, No. FIS2008-01323, No. FPA2010-17806, 11871/PI/09 (Fundación Séneca, Murcia), and No. UCM-BSCH GR58/08 910309 (Spain). We thank L. Tolos for sharing her computer data with us and A. Polls for suggestions.
dc.description.abstractIn general relativity, there is a maximum mass allowed for neutron stars that, if exceeded, entails collapse into a black hole. Its precise value depends on details of the nuclear matter equation of state, a subject where much progress has been accomplished thanks to low energy effective theories. The discovery of a two-solar-mass neutron star, near that maximum mass, when analyzed with modern equations of state, implies that Newton's gravitational constant in the star cannot exceed its value on Earth by more than 12% at the 95% confidence level. This significantly extends the gravitational field intensity at which the constant has been constrained at the 10% level.
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipCaja Madrid Program for Advanced Studies
dc.description.sponsorshipEU
dc.description.sponsorshipFundación Séneca, Murcia
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/20436
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dc.identifier.doi10.1103/PhysRevC.85.012801
dc.identifier.issn0556-2813
dc.identifier.officialurlhttp://prc.aps.org/abstract/PRC/v85/i1/e012801
dc.identifier.relatedurlhttp://prc.aps.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/43703
dc.issue.number1
dc.journal.titlePhysical Review C
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.projectID227431-HadronPhysics2
dc.relation.projectIDConsolider-CSD2007-00042
dc.relation.projectIDAIC10-D-000582
dc.relation.projectIDFPA2008-00592
dc.relation.projectIDFIS2008-01323
dc.relation.projectIDFPA2010-17806
dc.relation.projectID11871/PI/09
dc.relation.projectIDUCM-BSCHGR58/08 910309
dc.rights.accessRightsopen access
dc.subject.cdu53
dc.subject.keywordMatter
dc.subject.keywordEquation
dc.subject.keywordPulsar
dc.subject.ucmFísica (Física)
dc.subject.unesco22 Física
dc.titleExistence of two-solar-mass neutron star constrains gravitational constant G(N) at strong field
dc.typejournal article
dc.volume.number85
dspace.entity.typePublication
relation.isAuthorOfPublication16523fad-99a9-422c-9a8e-c949ccffadec
relation.isAuthorOfPublication6290fe55-04e6-4532-91e6-1df735bdbdca
relation.isAuthorOfPublication.latestForDiscovery16523fad-99a9-422c-9a8e-c949ccffadec
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