COBE Observations of the Region Around IC~1848

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Session 44 -- Interstellar Medium
Display presentation, Thursday, January 13, 9:30-6:45, Salons I/II Room (Crystal Gateway)

[44.05] COBE Observations of the Region Around IC~1848

D. Leisawitz (NASA/GSFC), M. Mitra (GSC), M. G. Hauser (NASA/GSFC)

Infrared photometric and spectroscopic observations of IC~1848 from two of the instruments aboard COBE are used to derive physical properties of the dust and gas in the diffuse H II region and in the molecular clouds heated by the cluster of O stars. With its $42^{\prime} \, \times \, 42^{\prime}$ instantaneous field of view, the Diffuse Infrared Background Experiment (DIRBE) provides 9 independent spectral energy distributions from various parts of the region covering the spectral range from 1.25 to 240 $\mu$m in 10 bands. Maps of the dust temperature and column density derived from the DIRBE far infrared observations are presented. A spectrum from the Far Infrared Absolute Spectrophotometer (FIRAS) shows strong [C~II] and weak [N~II] line emission.

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