Daily monitor of Sagittarius A* at 22 GHz with the Japanese VLBI Network

M. Tsuboi, Y. Asaki, Y. Yonekura, Y. Miyamoto, H. Kaneko, M. Seta, N. Nakai, O. Kameya, M. Miyoshi, H. Takaba, K. Wakamatsu, Y. Fukuzaki, T. Morimitsu, K. Uehara, M. Sekido, Tomoharu Oka, S. Takekawa, T. Omodaka, T. Handa, A. Takumi

Research output: Contribution to journalArticle

Abstract

We have been monitoring the flux density of Sagittarius A* (Sgr A*) at 22 GHz since DOY=42 (11 Feb. 2013) with a sub-array of the Japanese VLBI Network in order to search the increase of 22-GHz emission from Sgr A* induced by the interaction of the G2 cloud with the accretion disk. The flux densities observed until DOY=322 (18 Nov. 2013) are consistent with the previously observed values before the approaching of the cloud. We have detected no large flare during this period.

Original languageEnglish
Pages (from-to)382-384
Number of pages3
JournalProceedings of the International Astronomical Union
Volume9
Issue numberS303
DOIs
Publication statusPublished - 2014

Fingerprint

very long base interferometry
very long baseline interferometry
monitors
flux density
accretion disks
flares
accretion
monitoring
interactions

Keywords

  • galaxies: active
  • galaxies: nuclei
  • Galaxy: center

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Tsuboi, M., Asaki, Y., Yonekura, Y., Miyamoto, Y., Kaneko, H., Seta, M., ... Takumi, A. (2014). Daily monitor of Sagittarius A* at 22 GHz with the Japanese VLBI Network. Proceedings of the International Astronomical Union, 9(S303), 382-384. https://doi.org/10.1017/S1743921314000969

Daily monitor of Sagittarius A* at 22 GHz with the Japanese VLBI Network. / Tsuboi, M.; Asaki, Y.; Yonekura, Y.; Miyamoto, Y.; Kaneko, H.; Seta, M.; Nakai, N.; Kameya, O.; Miyoshi, M.; Takaba, H.; Wakamatsu, K.; Fukuzaki, Y.; Morimitsu, T.; Uehara, K.; Sekido, M.; Oka, Tomoharu; Takekawa, S.; Omodaka, T.; Handa, T.; Takumi, A.

In: Proceedings of the International Astronomical Union, Vol. 9, No. S303, 2014, p. 382-384.

Research output: Contribution to journalArticle

Tsuboi, M, Asaki, Y, Yonekura, Y, Miyamoto, Y, Kaneko, H, Seta, M, Nakai, N, Kameya, O, Miyoshi, M, Takaba, H, Wakamatsu, K, Fukuzaki, Y, Morimitsu, T, Uehara, K, Sekido, M, Oka, T, Takekawa, S, Omodaka, T, Handa, T & Takumi, A 2014, 'Daily monitor of Sagittarius A* at 22 GHz with the Japanese VLBI Network', Proceedings of the International Astronomical Union, vol. 9, no. S303, pp. 382-384. https://doi.org/10.1017/S1743921314000969
Tsuboi, M. ; Asaki, Y. ; Yonekura, Y. ; Miyamoto, Y. ; Kaneko, H. ; Seta, M. ; Nakai, N. ; Kameya, O. ; Miyoshi, M. ; Takaba, H. ; Wakamatsu, K. ; Fukuzaki, Y. ; Morimitsu, T. ; Uehara, K. ; Sekido, M. ; Oka, Tomoharu ; Takekawa, S. ; Omodaka, T. ; Handa, T. ; Takumi, A. / Daily monitor of Sagittarius A* at 22 GHz with the Japanese VLBI Network. In: Proceedings of the International Astronomical Union. 2014 ; Vol. 9, No. S303. pp. 382-384.
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AU - Kaneko, H.

AU - Seta, M.

AU - Nakai, N.

AU - Kameya, O.

AU - Miyoshi, M.

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AU - Wakamatsu, K.

AU - Fukuzaki, Y.

AU - Morimitsu, T.

AU - Uehara, K.

AU - Sekido, M.

AU - Oka, Tomoharu

AU - Takekawa, S.

AU - Omodaka, T.

AU - Handa, T.

AU - Takumi, A.

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