G85.410+0.003

  The -31.5 km/s methanol maser feature exhibited a flare in October 2019.
  The contemporary flare occurred sometime around October 2024 in the other main feature at -29.5 km/s. The flare of this component appears to be quasi-periodic with a period of abput 300 d.
  The -30.7 km/s component have started flaring after MJD 60797 (2025/May/02).

  The present flare (2024 Oct flare at -29.5 km/s component) was initially identified using the Irbene single-baseline interferometer.
  The other data were obtained by Ibaraki 6.7 GHz Methanol Maser Monitor (iMet).
  
Please refer to the following papers:
xxxx (2025) [ATel#xxxxx] (for the present burst)
Yonekura et al. (2016) PASJ, 68,74 (for the iMet monitoring program and the equipment)

Precise position (by interferometer) is
R.A.(J2000) = 
DEC.(J2000) = 
(ref.)

Observed position at Ibaraki is
R.A.(J2000) = 20h 54m 13.71s
DEC.(J2000) = +44d 54'  7.85''
(Xu et al. 2009)
with the beam size of ~4.8 arcmin

Light curves

daily spectra

Dynamic spectra [in prep.]

Movie