Origin of an orbiting star around the galactic supermassive black hole

Published under the terms of the CC BY-NC license https://creativecommons.org/licenses/by-nc/4.0/

Detalles Bibliográficos
Autores: Nishiyama, S., Kara, Tomohiro, Thorsbro, B., Saida, Hiromi, Takamori, Yohsuke, Takahashi, M., Ohgami, Takayuki, Ichimoto, K., Schödel, Rainer
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/371269
Acceso en línea:http://hdl.handle.net/10261/371269
Access Level:acceso abierto
Palabra clave:Astrophysics
Infrared astronomy
Black hole
Spectroscopy
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spelling Origin of an orbiting star around the galactic supermassive black holeNishiyama, S.Kara, TomohiroThorsbro, B.Saida, HiromiTakamori, YohsukeTakahashi, M.Ohgami, TakayukiIchimoto, K.Schödel, RainerAstrophysicsInfrared astronomyBlack holeSpectroscopyPublished under the terms of the CC BY-NC license https://creativecommons.org/licenses/by-nc/4.0/The tremendous tidal force that is linked to the supermassive black hole (SMBH) at the center of our galaxy is expected to strongly subdue star formation in its vicinity. Stars within 1" from the SMBH thus likely formed further from the SMBH and migrated to their current positions. In this study, spectroscopic observations of the star S0-6/S10, one of the closest (projected distance from the SMBH of about 0.3") late-type stars were conducted. Using metal absorption lines in the spectra of S0-6, the radial velocity of S0-6 from 2014 to 2021 was measured, and a marginal acceleration was detected, which indicated that S0-6 is close to the SMBH. The S0-6 spectra were employed to determine its stellar parameters including temperature, chemical abundances ([M/H], [Fe/H], [alpha/Fe], [Ca/Fe], [Mg/Fe], [Ti/Fe]), and age. As suggested by the results of this study, S0-6 is very old (> ~10 Gyr) and has an origin different from that of stars born in the central pc region. © 2024 The Author(s).We wish to thank the Subaru Telescope staff for the support provided for our observations. We thank Tuan Do, Rory Bentley, and Anja Feldmeier- Krause for their kind assistance with the analysis using Starkit. This work was supported by JSPS KAKENHI, Grant in Aid for Challenging Explor- atory Research (Grant Number 18K18760, 20H00178), Grant-in-Aid for Scientific Research(A) (Grant Number 20H00178, 19H00695, 18H03720) and Grant-in-Aid for Scientific Research(B) (50640843). This work was supported by the Tohoku Initiative for Fostering Global Researchers for Interdisciplinary Sciences (TI-FRIS) of MEXT’s Strategic Professional Development Program for Young Researchers. RS acknowledges financial sup- port from the State Agency for Research of the Spanish MCIU through the “Center of Excellence Severo Ochoa” award for the Instituto de Astrofísica de Andalucía (SEV-2017-0709) and from grant EUR2022-134031 funded by MCIN/AEI/10.13039/ 501100011033 and by the European Union Next Generation EU/PRTR. BT acknowledges the finan- cial support from the Wenner-Gren Foundation (WGF2022-0041). This research is based on data collected at the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan. We are honored and grateful for the opportunity to observe the Universe from Maunakea, which has cultural, historical, and natural significance in Hawaii.Peer reviewedThe Japan AcademyJapan Society for the Promotion of ScienceAgencia Estatal de Investigación (España)European CommissionWenner-Gren FoundationConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/371269reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.2183/pjab.100.007Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3712692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Origin of an orbiting star around the galactic supermassive black hole
title Origin of an orbiting star around the galactic supermassive black hole
spellingShingle Origin of an orbiting star around the galactic supermassive black hole
Nishiyama, S.
Astrophysics
Infrared astronomy
Black hole
Spectroscopy
title_short Origin of an orbiting star around the galactic supermassive black hole
title_full Origin of an orbiting star around the galactic supermassive black hole
title_fullStr Origin of an orbiting star around the galactic supermassive black hole
title_full_unstemmed Origin of an orbiting star around the galactic supermassive black hole
title_sort Origin of an orbiting star around the galactic supermassive black hole
dc.creator.none.fl_str_mv Nishiyama, S.
Kara, Tomohiro
Thorsbro, B.
Saida, Hiromi
Takamori, Yohsuke
Takahashi, M.
Ohgami, Takayuki
Ichimoto, K.
Schödel, Rainer
author Nishiyama, S.
author_facet Nishiyama, S.
Kara, Tomohiro
Thorsbro, B.
Saida, Hiromi
Takamori, Yohsuke
Takahashi, M.
Ohgami, Takayuki
Ichimoto, K.
Schödel, Rainer
author_role author
author2 Kara, Tomohiro
Thorsbro, B.
Saida, Hiromi
Takamori, Yohsuke
Takahashi, M.
Ohgami, Takayuki
Ichimoto, K.
Schödel, Rainer
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Japan Society for the Promotion of Science
Agencia Estatal de Investigación (España)
European Commission
Wenner-Gren Foundation
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Astrophysics
Infrared astronomy
Black hole
Spectroscopy
topic Astrophysics
Infrared astronomy
Black hole
Spectroscopy
description Published under the terms of the CC BY-NC license https://creativecommons.org/licenses/by-nc/4.0/
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/371269
url http://hdl.handle.net/10261/371269
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.2183/pjab.100.007
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv The Japan Academy
publisher.none.fl_str_mv The Japan Academy
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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