Hinting a dark matter nature of Sgr A* via the S-stars

Autores
Becerra Vergara, E. A.; Argüelles, Carlos Raúl; Krut, A.; Rueda, J. A.; Ruffini, R.
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The motion data of the S-stars around the Galactic Centre gathered in the last 28 yr imply that Sgr A* hosts a supermassive compact object of about 4×106M⊙⁠, a result awarded with the Nobel Prize in Physics 2020. A non-rotating black hole (BH) nature of Sgr A* has been uncritically adopted since the S-star orbits agree with Schwarzschild geometry geodesics. The orbit of S2 has served as a test of general relativity predictions such as the gravitational redshift and the relativistic precession. The central BH model is, however, challenged by the G2 post-peripassage motion and by the lack of observations on event-horizon-scale distances robustly pointing to its univocal presence. We have recently shown that the S2 and G2 astrometry data are better fitted by geodesics in the spacetime of a self-gravitating dark matter core–halo distribution of 56 keV-fermions, ‘darkinos’, which also explains the outer halo Galactic rotation curves. This letter confirms and extends this conclusion using the astrometry data of the 17 best-resolved S-stars, thereby strengthening the alternative nature of Sgr A* as a dense core of darkinos.
Fil: Becerra Vergara, E. A.. Università di Roma; Italia
Fil: Argüelles, Carlos Raúl. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Krut, A.. Università di Roma; Italia
Fil: Rueda, J. A.. Università di Roma; Italia
Fil: Ruffini, R.. Università di Roma; Italia
Materia
Elementary particles
dark matter
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/150310
Acceder
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spelling Hinting a dark matter nature of Sgr A* via the S-starsBecerra Vergara, E. A.Argüelles, Carlos RaúlKrut, A.Rueda, J. A.Ruffini, R.Elementary particlesdark matterhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The motion data of the S-stars around the Galactic Centre gathered in the last 28 yr imply that Sgr A* hosts a supermassive compact object of about 4×106M⊙⁠, a result awarded with the Nobel Prize in Physics 2020. A non-rotating black hole (BH) nature of Sgr A* has been uncritically adopted since the S-star orbits agree with Schwarzschild geometry geodesics. The orbit of S2 has served as a test of general relativity predictions such as the gravitational redshift and the relativistic precession. The central BH model is, however, challenged by the G2 post-peripassage motion and by the lack of observations on event-horizon-scale distances robustly pointing to its univocal presence. We have recently shown that the S2 and G2 astrometry data are better fitted by geodesics in the spacetime of a self-gravitating dark matter core–halo distribution of 56 keV-fermions, ‘darkinos’, which also explains the outer halo Galactic rotation curves. This letter confirms and extends this conclusion using the astrometry data of the 17 best-resolved S-stars, thereby strengthening the alternative nature of Sgr A* as a dense core of darkinos.Fil: Becerra Vergara, E. A.. Università di Roma; ItaliaFil: Argüelles, Carlos Raúl. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Krut, A.. Università di Roma; ItaliaFil: Rueda, J. A.. Università di Roma; ItaliaFil: Ruffini, R.. Università di Roma; ItaliaOxford University Press2021-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/150310Becerra Vergara, E. A.; Argüelles, Carlos Raúl; Krut, A.; Rueda, J. A.; Ruffini, R.; Hinting a dark matter nature of Sgr A* via the S-stars; Oxford University Press; Monthly Notices of the Royal Astronomical Society: Letters; 505; 1; 7-2021; L64-L681745-39251745-3933CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/505/1/L64/6279037info:eu-repo/semantics/altIdentifier/doi/10.1093/mnrasl/slab051info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:07:26Zoai:ri.conicet.gov.ar:11336/150310instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:07:26.28CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hinting a dark matter nature of Sgr A* via the S-stars
title Hinting a dark matter nature of Sgr A* via the S-stars
spellingShingle Hinting a dark matter nature of Sgr A* via the S-stars
Becerra Vergara, E. A.
Elementary particles
dark matter
title_short Hinting a dark matter nature of Sgr A* via the S-stars
title_full Hinting a dark matter nature of Sgr A* via the S-stars
title_fullStr Hinting a dark matter nature of Sgr A* via the S-stars
title_full_unstemmed Hinting a dark matter nature of Sgr A* via the S-stars
title_sort Hinting a dark matter nature of Sgr A* via the S-stars
dc.creator.none.fl_str_mv Becerra Vergara, E. A.
Argüelles, Carlos Raúl
Krut, A.
Rueda, J. A.
Ruffini, R.
author Becerra Vergara, E. A.
author_facet Becerra Vergara, E. A.
Argüelles, Carlos Raúl
Krut, A.
Rueda, J. A.
Ruffini, R.
author_role author
author2 Argüelles, Carlos Raúl
Krut, A.
Rueda, J. A.
Ruffini, R.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Elementary particles
dark matter
topic Elementary particles
dark matter
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The motion data of the S-stars around the Galactic Centre gathered in the last 28 yr imply that Sgr A* hosts a supermassive compact object of about 4×106M⊙⁠, a result awarded with the Nobel Prize in Physics 2020. A non-rotating black hole (BH) nature of Sgr A* has been uncritically adopted since the S-star orbits agree with Schwarzschild geometry geodesics. The orbit of S2 has served as a test of general relativity predictions such as the gravitational redshift and the relativistic precession. The central BH model is, however, challenged by the G2 post-peripassage motion and by the lack of observations on event-horizon-scale distances robustly pointing to its univocal presence. We have recently shown that the S2 and G2 astrometry data are better fitted by geodesics in the spacetime of a self-gravitating dark matter core–halo distribution of 56 keV-fermions, ‘darkinos’, which also explains the outer halo Galactic rotation curves. This letter confirms and extends this conclusion using the astrometry data of the 17 best-resolved S-stars, thereby strengthening the alternative nature of Sgr A* as a dense core of darkinos.
Fil: Becerra Vergara, E. A.. Università di Roma; Italia
Fil: Argüelles, Carlos Raúl. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Krut, A.. Università di Roma; Italia
Fil: Rueda, J. A.. Università di Roma; Italia
Fil: Ruffini, R.. Università di Roma; Italia
description The motion data of the S-stars around the Galactic Centre gathered in the last 28 yr imply that Sgr A* hosts a supermassive compact object of about 4×106M⊙⁠, a result awarded with the Nobel Prize in Physics 2020. A non-rotating black hole (BH) nature of Sgr A* has been uncritically adopted since the S-star orbits agree with Schwarzschild geometry geodesics. The orbit of S2 has served as a test of general relativity predictions such as the gravitational redshift and the relativistic precession. The central BH model is, however, challenged by the G2 post-peripassage motion and by the lack of observations on event-horizon-scale distances robustly pointing to its univocal presence. We have recently shown that the S2 and G2 astrometry data are better fitted by geodesics in the spacetime of a self-gravitating dark matter core–halo distribution of 56 keV-fermions, ‘darkinos’, which also explains the outer halo Galactic rotation curves. This letter confirms and extends this conclusion using the astrometry data of the 17 best-resolved S-stars, thereby strengthening the alternative nature of Sgr A* as a dense core of darkinos.
publishDate 2021
dc.date.none.fl_str_mv 2021-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/150310
Becerra Vergara, E. A.; Argüelles, Carlos Raúl; Krut, A.; Rueda, J. A.; Ruffini, R.; Hinting a dark matter nature of Sgr A* via the S-stars; Oxford University Press; Monthly Notices of the Royal Astronomical Society: Letters; 505; 1; 7-2021; L64-L68
1745-3925
1745-3933
CONICET Digital
CONICET
url http://hdl.handle.net/11336/150310
identifier_str_mv Becerra Vergara, E. A.; Argüelles, Carlos Raúl; Krut, A.; Rueda, J. A.; Ruffini, R.; Hinting a dark matter nature of Sgr A* via the S-stars; Oxford University Press; Monthly Notices of the Royal Astronomical Society: Letters; 505; 1; 7-2021; L64-L68
1745-3925
1745-3933
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/505/1/L64/6279037
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnrasl/slab051
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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