Oral Presentation

ALMA reveals sequential massive star formation in G9.62+0.19 complex

Author(s): Tie Liu (KASI)

Presenter: Tie Liu (KASI)

In the young high-mass star forming region of G9.62+0.19 complex， our ALMA observations detected 12 dense and massive cores, which are at different evolutionary stages from starless phase to UCHII region phase. Very energetic outflows were detected in SiO (5-4) line toward a hot core and an extremely young high-mass protostellar object. Infrared [NeII] observations indicate that the ionizing gas of the western HII regions have similar velocity as that of molecular gas in the young high-mass star forming region. Clear sequential massive star formation is taking place from west to east, which may be evident for triggered star formation.