Speaker
Description
I will summarize our current understanding of dust-enshrouded sources that are observed in the S cluster around the supermassive black hole (SMBH). Currently, we observe a population of about 10 sources that share common characteristics: a prominent near-infrared excess and rather broad emission lines (Br-gamma, HeI). These sources are quite distinct from the majority of the surrounding B-type main-sequence stars. The most intensively monitored source has been G2/DSO moving on a highly eccentric orbit. I will discuss potential formation channels of these sources: dust-enshrouded young stars, binary merger products, or other, more exotic scenarios. I will analyze how their appearance and the evolution depend on the stellar wind properties and the distance from the SMBH.
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