Reappearance of methanol maser flare in G24.33+0.14

ATel #13080; P. Wolak, M. Olech, M. Szymczak, A. Bartkiewicz, M. Durjasz, (Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, PL-87-100 Torun, Poland)
on 5 Sep 2019; 10:40 UT
Credential Certification: Pawel Wolak (wolak@astro.uni.torun.pl)

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A second methanol maser burst in G24.33+0.14 is being observed with the Torun 32 m radio telescope at 6.7GHz. The first flare was detected about 8 years ago (Wolak et. al. 2018, feature 1C at Fig. 1.). During the current burst the integrated flux density and flux density of feature at 115 km s^-1 increased over 80 days by a factor of 2.5 and 5.5, respectively (Fig. 2.). Enhancement of intensity of methanol maser is also seen at 12.2GHz. The target is a high-mass young stellar object associated with the hydroxyl, methanol and water masers (Caswell & Green 2011). The variability characteristics suggest that the flare is due to changes in the physical conditions likely induced by an episodic accretion event. Follow-up observations are encouraged.