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Near-Infrared Spectroscopy of Photodissociation Regions: The Orion Bar and Orion S

K. L. Luhman·C. W. Engelbracht·M. L. Luhman
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Abstract

To test the PDR model spectra under the physical conditions present in Orion, we have obtained moderate-resolution (R=3000) J-, H-, and K-band long-slit spectra of the Orion bar and Orion S regions These observations provide conclusive evidence for the PDR origin (rather than shocks) of the H_2 emission in each of these regions and demonstrate significant departures in the observed chemical structure from that predicted by models of homogeneous PDRs.

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K. L. Luhman, C. W. Engelbracht, M. L. Luhman. 1998-01-03. Near-Infrared Spectroscopy of Photodissociation Regions: The Orion Bar and Orion S. https://doi.org/10.1086/305682

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