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Mapping the PAHs and H2 in ρ Oph A

Published online by Cambridge University Press:  01 February 2008

Kay Justtanont ,
René Liseau  and
Bengt Larsson
Kay Justtanont
Affiliation:
Onsala Space Obseravtory, Chalmers University of Technology, SE-439 92 Onsala, Sweden email: kay.justtanont@chalmers.se, rene.liseau@chalmers.se
René Liseau
Affiliation:
Onsala Space Obseravtory, Chalmers University of Technology, SE-439 92 Onsala, Sweden email: kay.justtanont@chalmers.se, rene.liseau@chalmers.se
Bengt Larsson
Affiliation:
Stockholm Observatory, AlbaNova University Center, SE-106 91 Stockholm, Sweden email: bem@astro.su.se
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Abstract

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We present an ISOCAM-CVF map of the ρ Oph A region, covering 3′ × 3′. For each 6 arcsec2 pixel, we extract the spectrum from 5–15 μm. We determine the fluxes of the main PAH features by fitting Lorentzian profiles to the spectrum. The peaks of the various PAH components correspond well with the known positions of the PDRs in this vicinity. The spectrum in several pixels exhibits strong rotational lines of molecular hydrogen which can be used to derive the physical properties of the cloud. The H2 emission traces the hot gas of the bipolar CO outflow from VLA1623.

Keywords

Molecular processesISM: cloudsISM: jets and outflowsStars: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S251: Organic Matter in Space , February 2008 , pp. 227 - 228
Copyright
Copyright © International Astronomical Union 2008

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