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Campo DC | Valor | Idioma |
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dc.rights.license | Copyright © 2019, Oxford University Press | - |
dc.contributor.author | Saida, H. | - |
dc.contributor.author | Nishiyama, S. | - |
dc.contributor.author | Ohgami, T. | - |
dc.contributor.author | Takamori, Y. | - |
dc.contributor.author | Takahashi, M. | - |
dc.contributor.author | Minowa, Y. | - |
dc.contributor.author | Najarro, F. | - |
dc.contributor.author | Hamano, S. | - |
dc.contributor.author | Omiya, M. | - |
dc.contributor.author | Iwamatsu, A. | - |
dc.contributor.author | Takahashi, M. | - |
dc.contributor.author | Gorin, H. | - |
dc.contributor.author | Kara, T. | - |
dc.contributor.author | Koyama, A. | - |
dc.contributor.author | Ohashi, Y. | - |
dc.contributor.author | Tamura, M. | - |
dc.contributor.author | Nagatomo, S. | - |
dc.contributor.author | Zenko, T. | - |
dc.contributor.author | Nagata, T. | - |
dc.contributor.other | Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737 | - |
dc.date.accessioned | 2021-04-13T14:02:49Z | - |
dc.date.available | 2021-04-13T14:02:49Z | - |
dc.date.issued | 2019-10-22 | - |
dc.identifier.citation | Publications of the Astronomical Society of Japan 71(6): 126(2019) | es |
dc.identifier.issn | 0004-6264 | - |
dc.identifier.other | https://academic.oup.com/pasj/article-abstract/71/6/126/5602616 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12666/320 | - |
dc.description.abstract | The star S0-2, orbiting the Galactic central massive black hole candidate Sgr A*, passed its pericenter in 2018 May. This event is the first chance to detect the general relativistic (GR) effect of a massive black hole, free from non-gravitational physics. The observable GR evidence in the event is the difference between the GR redshift and the Newtonian redshift of photons coming from S0-2. Within the present observational precision, the first post-Newtonian (1PN) GR evidence is detectable. In this paper, we give a theoretical analysis of the time evolution of the 1PN GR evidence, under a presupposition that is different from used in previous papers. Our presupposition is that the GR/Newtonian redshift is always calculated with the parameter values (the mass of Sgr A*, the initial conditions of S0-2, and so on) determined by fitting the GR/Newtonian motion of S0-2 with the observational data. It is then revealed that the difference of the GR redshift and the Newtonian one shows two peaks before and after the pericenter passage. This double-peak appearance is due to our presupposition, and reduces to a single peak if the same parameter values are used in both GR and Newtonian redshifts as considered in previous papers. In addition to this theoretical discussion, we report our observational data obtained with the Subaru telescope by 2018. The quality and the number of Subaru data in 2018 are not sufficient to confirm the detection of the double-peak appearance. | es |
dc.description.sponsorship | We would like to express our gratitude to the staffs of the Subaru telescope, for their continuous supports for our observations. We thank Rainer Schodel for his supports in our data analysis, and Aurelien Hees for his useful discussions on the theory for detecting the GR evidence. H. S. was supported by JSPS KAKENHI, Grant-in-Aid for Challenging Exploratory Research 26610050, and Grant-inAid for Scientific Research (B) 19H01900. S. N. was supported by JSPS KAKENHI, Grant-in-Aid for Young Scientists (A) 25707012, Grant-in-Aid for Challenging Exploratory Research 15K13463 and 18K18760, and Grant-in-Aid for Scientific Research (A) 19H00695. T. O. was supported by JSPS KAKENHI, Grant-in-Aid for JSPS fellows JP17J00547. Y. T. was supported by JSPS KAKENHI, Grant-in-Aid for Young Scientists (B) 26800150. M. T. was supported by DAIKO FOUNDATION, and JSPS KAKENHI, Grant-in-Aid for Scientific Research (C) 17K05439; With funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737). | es |
dc.language.iso | eng | es |
dc.publisher | Oxford Academics: Oxford University Press | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Black hole physics | es |
dc.subject | Galaxy: center | es |
dc.subject | Gravitation | es |
dc.subject | Relativistic processes | es |
dc.title | A significant feature in the general relativistic time evolution of the redshift of photons coming from a star orbiting Sgr A | es |
dc.type | info:eu-repo/semantics/article | es |
dc.contributor.orcid | Nishiyama, S. [https://orcid.org/0000-0002-9440-7172] | - |
dc.identifier.doi | 10.1093/pasj/psz111 | - |
dc.identifier.e-issn | 2053-051X | - |
dc.contributor.funder | Japan Society for the Promotion of Science (KAKENHI) | - |
dc.description.peerreviewed | Peer review | es |
dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | - |
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