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

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Session 49 -- Star Formation
Display presentation, Thursday, January 13, 9:30-6:45, Salons I/II Room (Crystal Gateway)

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

E.M.Howard, J.L.Pipher, W.J.Forrest (University of Rochester)

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

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