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Clarification of the formation process of the super massive black hole by Infrared astrometric satellite, Small-JASMINE

Published online by Cambridge University Press:  07 March 2018

Taihei Yano
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan email: yano.t@nao.ac.jp
JASMINE-WG
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan email: yano.t@nao.ac.jp
Corresponding
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Abstract

Small-JASMINE (hearafter SJ), infrared astrometric satellite, will measure the positions and the proper motions which are located around the Galactic center, by operating at near infrared wave-lengths. SJ will clarify the formation process of the super massive black hole (hearafter SMBH) at the Galactic center. In particular, SJ will determine whether the SMBH was formed by a sequential merging of multiple black holes. The clarification of this formation process of the SMBH will contribute to a better understanding of merging process of satellite galaxies into the Galaxy, which is suggested by the standard galaxy formation scenario. A numerical simulation (Tanikawa and Umemura, 2014) suggests that if the SMBH was formed by the merging process, then the dynamical friction caused by the black holes have influenced the phase space distribution of stars. The phase space distribution measured by SJ will make it possible to determine the occurrences of the merging process.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

Tanikawa, A. & Umemura, , 2014, MNRAS, 440, 652 CrossRefGoogle Scholar
Gonzalez, O. A., Rejkuba, M., Zoccali, M., Valenti, E., Minniti, D., Schultheis, M., Tobar, R., & Chen, B., 2012, A&A, 543, 13 Google Scholar

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