Luminous infrared-load quasar IRAS 13349+2438
The luminous infrared-load quasar IRAS 13349+2438, at a redshift
of 0.10764, is a source extensively studied in the optical,
infrared and X-ray bands. The spectrum obtained with XMM-Newton's
Reflection Grating Spectrometer (RGS) shows the presence of a wide
range of elements at different levels of ionisation. The most
prominent features are the absorption lines of carbon, nitrogen,
oxygen, neon and iron. These data, which are extremely rich in
detail, can be used for highly precise studies of the warm
absorber material thought to be present in our line of sight
around the giant black holes in the center of such systems. The
best-fit model spectrum is superimposed in red. Courtesy of M.
Sako, Columbia Univ., NY, USA.
Last Update: 1 September 2019