Slide 26
Slide 26 text
Chris Clark | ACS 4th Wed, 26 Aug 2024
BEASTING the BADGRs
Clark+ (in prep.); Clark+ (2015,2018); Nersesian+ (2019)
Star-by-star extinction mapping in these BADGRs will let us:
• Probe the dust geometry at high resolution; is it clumpy?
• See if dust is just far away from UV radiation sources
• Measure the dust’s intrinsic emissivity, by comparing
extinction to far-IR emission
• Check for CO freeze-out, by comparing extinction to
ALMA data
• Use extinction as tracer of total gas column, and search
for dark gas by comparing to HI and CO columns
NGC 7793 NGC 4449