22 GHz MONITORING OF SGR A* DURING THE G2 PERI-CENTER PASSING WITH THE JAPANESE VLBI NETWORK

O. Kameya; M. Tsuboi; Y. Asaki; Y. Yonekura; Y. Miyamoto; H. Kaneko; M. Seta; N. Nakai; M. Miyoshi; H. Takaba; K. Wakamatsu; Y. Fukuzaki; T. Morimitsu; M. Sekido

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22 GHz MONITORING OF SGR A* DURING THE G2 PERI-CENTER PASSING WITH THE JAPANESE VLBI NETWORK KCI 등재

O. Kameya, M. Tsuboi, Y. Asaki, Y. Yonekura, Y. Miyamoto, H. Kaneko, M. Seta, N. Nakai, M. Miyoshi, H. Takaba, K. Wakamatsu, Y. Fukuzaki, T. Morimitsu, M. Sekido

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URLhttps://db.koreascholar.com/Article/Detail/385717

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천문학논총 (Publications of the Korean Astronomical Society)

Volume 30 Issue 2 (2015.09)
pp.649-650

한국천문학회 (Korean Astronomical Society)

초록

We have been performing daily VLBI monitoring of the ux density of Sagittarius (Sgr) A* at 22 GHz from February 2013 to August 2014 using a sub-array of the Japanese VLBI Network (JVN). The purpose of this monitoring is to explore the ux density variability at daily time resolution for a period longer than one year with the G2 cloud approaching. The ux density of Sgr A* is basically stable during the observational period, though there are some small variations. The average and scattering range are consistent with the previously observed values. We have observed no strong are of Sgr A* although it is near the expected peri-center passing.

키워드

journals: individual: Sagittarius A*VLBI

ABSTRACT
1. INTRODUCTION
2. OBSERVATIONS
3. RESULTS AND DISCUSSION
REFERENCES

저자

O. Kameya(National Astronomical Observatory of Japan)
M. Tsuboi(ISAS/JAXA)
Y. Asaki(ISAS/JAXA)
Y. Yonekura(Ibaraki Univ.)
Y. Miyamoto(Univ. of Tsukuba)
H. Kaneko(Univ. of Tsukuba)
M. Seta(Univ. of Tsukuba)
N. Nakai(Univ. of Tsukuba)
M. Miyoshi(National Astronomical Observatory of Japan)
H. Takaba(Gifu Univ.)
K. Wakamatsu(Gifu Univ.)
Y. Fukuzaki(GSI)
T. Morimitsu(Univ. of Tokyo)
M. Sekido(NICT)

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