The Circumnuclear Environment of IRAS 20551-4250: A Case Study of AGN/Starburst Connection for JWST

Figure 1

HST images of IRAS 20551-4250. Left: composite B + I band image obtained with the WFC F435W and F814W filters (PID 10592, PI A. Evans). The white square identifies the nuclear (30′′ × 30′′) region. Right: NICMOS F160W image (PID 11235, PI J. Surace) of the nuclear region. The Spitzer/IRS short-wavelength/low-resolution (SL, 3.6′′ width) and short-wavelength/high-resolution (SH, 4.7′′ width) slits are shown together with the VLT/ISAAC slit (IS, 1′′ width in the L-band). Given a spatial scale of 950 pc/′′, the SL, SH, and IS slits cover regions of 3.4 kpc, 4.5 kpc, and 950 pc, respectively.