THE PHYSICAL CHARACTERISTICS OF THE GAS IN THE DISK OF CENTAURUS A USING THE HERSCHEL SPACE OBSERVATORY

@article{Parkin2014THEPC,
  title={THE PHYSICAL CHARACTERISTICS OF THE GAS IN THE DISK OF CENTAURUS A USING THE HERSCHEL SPACE OBSERVATORY},
  author={Tara J. Parkin and C. D. Wilson and Maximilien R. P. Schirm and Maarten Baes and M{\'e}d{\'e}ric Boquien and Alessandro Boselli and Diane Cormier and Maud Galametz and Oskar L. Karczewski and Vianney Lebouteiller and Ilse De Looze and Suzanne C. Madden and H'elene Roussel and M. W. L. Smith and Luigi Spinoglio},
  journal={The Astrophysical Journal},
  year={2014},
  volume={787}
}
We search for variations in the disk of Centaurus A of the emission from atomic fine structure lines using Herschel PACS and SPIRE spectroscopy. In particular, we observe the [C ii](158 μm), [N ii](122 and 205 μm), [O i](63 and 145 μm), and [O iii](88 μm) lines, which all play an important role in cooling the gas in photo-ionized and photodissociation regions (PDRs). We determine that the ([C ii]+[O i]63)/FTIR line ratio, a proxy for the heating efficiency of the gas, shows no significant… 
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