volume 13, issue S336, P37-40 2017
DOI: 10.1017/s1743921317010511
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Bringfried Stecklum, Alessio Caratti o Garatti, Klaus Hodapp, Hendrik Linz, Luca Moscadelli, Alberto Sanna

Abstract: Methanol and water masers indicate young stellar objects. They often exhibit flares, and a fraction shows periodic activity. Several mechanisms might explain this behavior but the lack of concurrent infrared (IR) data complicates to identify the cause. Recently, 6.7 GHz methanol maser flares were observed, triggered by accretion bursts of high-mass YSOs which confirmed the IR-pumping of these masers. This suggests that regular IR changes might lead to maser periodicity. Hence, we scrutinized space-based IR im…

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