The Extraordinary Maser Flaring Event in the Massive Protostellar System NGC6334I: Multi-epoch milliarcsecond resolution investigation of the 6.7-GHz Methanol Masers

• DOI: 10.48550/arxiv.2502.07522
• Publication Date: 2025-02-11
• Authors: Jayender Kumar; S. P. Ellingsen; Gábor Orosz; Lucas J. Hyland; Chris Phillips; Cormac Reynolds; Gordon MacLeod
• Keywords: Epoch (astronomy)

Wereportthefirstmulti-epochmilliarcsecondresolutionimagingofthe6.7-GHzclassIImethanolmaseremissionassociated with the high-mass protocluster system NGC6334I. The observations cover 4 epochs over a 10-year period between March 2010 and 2020. We confirm emergence of number new regions 6.7-GHz methanol maser emission in molecular gas surrounding NGC6334-MM1, which lies north previously known class II sites are associated NGC6334-MM3 -MM2. is located close to strongest (sub)millimetre source NGC6334I cluster MM1B experienced sudden increase intensity 2015, produced by an episodic accretion event. able compare location before, during, after flare, providing insights into relationship flares periodic events stars.