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Cambridge University Press (CUP), Proceedings of the International Astronomical Union, S315(11), 2015

DOI: 10.1017/s1743921316007912

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Intensity ratios for XDR/PDR identification

Journal article published in 2015 by C.-E. Green, M. R. Cunningham ORCID, J. A. Green, J. R. Dawson ORCID, P. A. Jones ORCID, Á. R. López-Sánchez, L. Verdes-Montenegro, C. Henkel, W. A. Baan, S. Martín
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

AbstractThe intensity ratios of HCO+/HCN and HNC/HCN (1-0) reveal the relative influence of star formation and active galactic nuclei (AGN) or black holes on the circum-nuclear gas of a galaxy, allowing the identification of X-ray dominated regions (XDRs) and Photon-dominated regions (PDRs). It is not always clear in the literature how this intensity ratio calculation has been, or should be performed. This paper discusses ratio calculation methods for interferometric data.

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