A Near Infrared Study of the K3-50A Compact HII Region

Astronomy and Astrophysics – Astronomy

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Scientific paper

In an ongoing study of star formation regions in the near (1-5microns) infrared, we present J (1.2microns), H (1.65microns), K (2.23microns), and L'' (3.81microns) broadband images as well as Brgamma (n = 7->4, 2.166microns) and Bralpha (n = 5->4, 4.052microns) hydrogen recombination line images, and 3.29microns unidentified feature emission images of the K3-50A HII region at a plate scale of ~ 0.9'' per pixel. The Brackett line images are combined to map the line of sight dust extinction to the compact HII region on a small spatial scale. The 3.29microns emission is found to overlap and extend beyond the Bralpha and Brgamma emission into the photodisociation region (PDR).

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