Gas near active galactic nuclei : A search for the 4 . 7 μ m CO band ⋆

In order to constrain the properties of dense and warm gas aro und active galactic nuclei, we have searched Infrared Space Observatory spectra of local active galactic nuclei ( AGN) for the signature of the 4.7 μm fundamental ro-vibrational band of carbon monoxide. Low resolution spectra of 31 AGN put upper limits on the presence of wide absorption bands… CONTINUE READING