| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP3W/43NH378 |
| Repository | sid.inpe.br/plutao/2020/12.07.14.07 (restricted access) |
| Last Update | 2020:12.08.18.31.13 (UTC) lattes |
| Metadata Repository | sid.inpe.br/plutao/2020/12.07.14.07.10 |
| Metadata Last Update | 2022:01.04.01.31.18 (UTC) administrator |
| DOI | 10.1140/epjc/s10052-020-08695-0 |
| ISSN | 1434-6044 |
| Label | lattes: 6217296674061205 3 NunesCoelArau:2020:LoPSJ0 |
| Citation Key | NunesCoelAraú:2020:LoPSJ0 |
| Title | Weighing massive neutron star with screening gravity: a look on PSR J0740 + 6620 and GW190814 secondary component  |
| Year | 2020 |
| Access Date | 2024, June 22 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 569 KiB |
| 2. Context | |
| Author | 1 Nunes, Rafael da Costa 2 Coelho, Jaziel Gourlart 3 Araújo, José Carlos Neves de |
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JHGK |
| Group | 1 DIDAS-CGCEA-INPE-MCTIC-GOV-BR 2 DIDAS-CGCEA-INPE-MCTIC-GOV-BR 3 DIDAS-CGCEA-INPE-MCTIC-GOV-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Author e-Mail Address | 1 rafadcnunes@gmail.com 2 jazielcoelho@utfpr.edu.br 3 jcarlos.dearaujo@inpe.br |
| Journal | European Physical Journal C |
| Volume | 80 |
| Number | 12 |
| Pages | 1115 |
| Secondary Mark | A2_INTERDISCIPLINAR A2_BIOTECNOLOGIA A2_ASTRONOMIA_/_FÍSICA B1_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA B1_ENGENHARIAS_IV |
| History (UTC) | 2020-12-08 18:31:13 :: lattes -> administrator :: 2020 2022-01-04 01:31:18 :: administrator -> simone :: 2020 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | Estrela de Neutrons Gravitação teoria alternativa da gravitação |
| Abstract | Neutron stars (NSs) are excellent natural laboratories to constrain gravity on strong field regime and nuclear matter in extreme conditions. Motivated by the recent discovery of a compact object with 2.59+0.08 −0.09M in the binary merger GW190814, if this object was a NS, it serves as a strong constraint on the NS equation of state (EoS), ruling out several soft EoSs favored by GW170817 event. In this work, we revisit the question of the maximum mass of NSs considering a chameleon screening (thin-shell effect) on the NS mass-radius relation, where the microscopic physics inside the NS is given by realistic soft EoSs. We find that from appropriate and reasonable combination of modified gravity, rotation effects and realistic soft EoSs, that it is possible to achieve high masses and explain GW190814 secondary component, and in return also NSs like PSR J0740+6620 (the most NS massive confirmed to date). It is shown that gravity can play an important role in estimating maximum mass of NSs, and even with soft EoSs, it is possible to generate very high masses. Therefore, in this competition of hydrostatic equilibrium between gravity and pressure (from EoS choice), some soft EoSs, in principle, cannot be completely ruled out without first taking into account gravitational effects. |
| Area | CEA |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Weighing massive neutron... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | nunes_weigh.pdf |
| User Group | lattes |
| Reader Group | administrator lattes |
| Visibility | shown |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH |
| Citing Item List | sid.inpe.br/bibdigital/2013/10.01.00.07 7 sid.inpe.br/mtc-m21/2012/07.13.14.51.44 2 |
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Notes | Setores de Atividade: Pesquisa e desenvolvimento científico. |
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn lineage mark mirrorrepository month nextedition orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url |
| 7. Description control | |
| e-Mail (login) | simone |
| update | |