Jacqueline Fischer

TL;DR: In this paper, the results of the Herschel PACS survey of local ULIRGs are presented. But, the results are limited to the far-infrared spectroscopy of Mrk 231, the most luminous of the local UL IRGs, and a broad absorption line AGN.

TL;DR: In this paper, the authors reported measurements of the 157.74 μm fine-structure line in a sample of seven ultraluminous infrared galaxies (ULIGs) (LIR > 1012 L☉) with the Long Wavelength Spectrometer on the Infrared Space Observatory.

TL;DR: In this article, Herschel/PACS observations of absorption lines of OH+ and H2O+ in NGC 4418 and Arp 220 were reported, indicating radiative pumping and location in the high radiation density environment of the nuclear regions.

TL;DR: In this paper, the authors used an integrated modeling approach to predict the spectrum of ionized, atomic, and molecular environments in pressure equilibrium, and found that the effects of high ratios of impinging ionizing radiation density to particle density (i.e., high ionization parameters, or U) can reproduce many ULIRG observational characteristics.

TL;DR: In this article, a non-local radiative transfer code was used to model the spectrum of the ultraluminous infrared galaxy Arp 220 and the emission/absorption of all observed features.