Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/27652
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Shaw, A. W. | en_US |
dc.contributor.author | Heinke, C. O. | en_US |
dc.contributor.author | Steiner, A. W. | en_US |
dc.contributor.author | CAMPANA, Sergio | en_US |
dc.contributor.author | Cohn, H. N. | en_US |
dc.contributor.author | Ho, W. C. G. | en_US |
dc.contributor.author | Lugger, P. M. | en_US |
dc.contributor.author | Servillat, M. | en_US |
dc.date.accessioned | 2020-10-07T13:15:58Z | - |
dc.date.available | 2020-10-07T13:15:58Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27652 | - |
dc.description.abstract | X-ray spectra of quiescent low-mass X-ray binaries containing neutron stars can be fit with atmosphere models to constrain the mass and the radius. Mass-radius constraints can be used to place limits on the equation of state of dense matter. We perform fits to the X-ray spectrum of a quiescent neutron star in the globular cluster M13, utilizing data from ROSAT, Chandra, and XMM-Newton, and constrain the mass-radius relation. Assuming an atmosphere composed of hydrogen and a 1.4 M<SUB>☉</SUB> neutron star, we find the radius to be R_NS=12.2^{+1.5}_{-1.1} km, a significant improvement in precision over previous measurements. Incorporating an uncertainty on the distance to M13 relaxes the radius constraints slightly and we find R_NS=12.3^{+1.9}_{-1.7} km (for a 1.4M<SUB>☉</SUB> neutron star with a hydrogen atmosphere), which is still an improvement in precision over previous measurements, some of which do not consider distance uncertainty. We also discuss how the composition of the atmosphere affects the derived radius, finding that a helium atmosphere implies a significantly larger radius. | en_US |
dc.language.iso | eng | en_US |
dc.title | The radius of the quiescent neutron star in the globular cluster M13 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/sty582 | en_US |
dc.identifier.scopus | 2-s2.0-85045476178 | en_US |
dc.identifier.isi | 000432659800030 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/476/4/4713/4923084 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 476 | en_US |
dc.relation.issue | 4 | en_US |
dc.relation.firstpage | 4713 | en_US |
dc.relation.lastpage | 4718 | en_US |
dc.relation.numberofpages | 5 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 8 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | GBR | en_US |
dc.contributor.country | FRA | en_US |
dc.contributor.country | CAN | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018MNRAS.476.4713S | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0001-6278-1576 | - |
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