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Table 4

Variability of a few selected methanol masers.

Source Initial date Final date Velocity Flux density Flux
observed observed component variation variation
[km s-1] [%] [%]

G33.13-0.09 July 2012 May 2013 73.3 −8 −17
G41.05-0.24 July 2012 May 2013 65.4 42 35
G41.16-0.18 January 2013 May 2013 56.0 380 135
G43.10+0.04 January 2013 May 2013 9.5 9 8
G45.87-0.37 January 2013 May 2013 60.0 −32 −33
G59.63-0.19 July 2012 May 2013 29.6 202 159
G59.78+0.63 July 2012 May 2013 38.3 96 107

Notes. Columns 5 and 6 list the percentage difference in the peak flux density (at the velocity indicated in Col. 4) and of the total flux between the initial and final dates of observation.

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