2015ApJ...798L...6T

Query : 2015ApJ...798L...6T

2015ApJ...798L...6T - Astrophys. J., 798, L6 (2015/January-1)

No microwave flare of Sagittarius A* around the G2 periastron passing.

TSUBOI M., ASAKI Y., KAMEYA O., YONEKURA Y., MIYAMOTO Y., KANEKO H., SETA M., NAKAI N., TAKABA H., WAKAMATSU K.-I., MIYOSHI M., FUKUZAKI Y., UEHARA K. and SEKIDO M.

Abstract (from CDS):

In order to explore any change caused by the G2 cloud approaching, we have monitored the flux density of Sgr A* at 22 GHz from 2013 February to 2014 August with a sub-array of the Japanese Very Long Baseline Interferometry Network. The observation period included the expected periastron dates. The number of observation epochs was 283 days. We have observed no significant microwave enhancement of Sgr A* in the whole observation period. The average flux density in the period is Sν= 1.23±0.33 Jy. The average is consistent with the usually observed flux density range of Sgr A* at 22 GHz.

Abstract Copyright: ∼

Journal keyword(s): galaxies: nuclei - Galaxy: center - ISM: individual: G2

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 QSO J1626-2951 Bla 16 26 06.02084013 -29 51 26.9712990   18.41 20.5 17.6   ~ 452 1
2 QSO B1730-130 Bla 17 33 02.70578907 -13 04 49.5482119   18 19.50 18.78 17.39 ~ 1198 1
3 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
4 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
5 NAME G2 Dust Cloud IR 17 45 40.04 -29 00 28.1           ~ 209 0
6 QSO B1921-293 BLL 19 24 51.05595254 -29 14 30.1210248   18.71 18.21 15.07   ~ 918 1
7 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2541 1

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