Speaker
Rami Alsulami
Description
The Scutum Supershell’s blowout includes spine and bow shock components, which are studied to investigate their physical and ionization properties. Previous studies have revealed optical from Hα, [S II], radio continuum PMN, and IR emissions in the right bow shock, characterised by high intensities in Hα and [S II] but lacking clear overlaps with known shock excitation sources. Spectroscopy analysis of the [S II]/Hα ratio, along with other emission lines, indicates complex ionisation processes: photoionisation likely dominates the spine region, while the left and right shock regions exhibit characteristics of shock excitation, with low-velocity shocks evidenced by weak [O III] 5007 Å emissions.
