through our mpe guaranteed-time program, a picture has emerged that most of the ultraluminous ir galaxies (ulirgs, l_ir > 10^12 l_sun) observed so far seem to be mainly powered by starbursts instead of agns. however, a subset of ulirgs, so-called ultraluminous warm ir galaxies, seems to be an exception in the sense that these ulirgs might actually be powered by agns. by examing its brighest member with seyfert2 characteristics, we will investigate whether this class of ulirgs is really powered by dust-enshrouded agns. if this is confirmed, we will be forced to consider the population of ulirgs as a mixed bag of various types of galaxies powered by different processes instead of a homogeneous population of galaxies powered by the same mechanism.
Instrument
SWS02
Temporal Coverage
1997-10-25T02:14:49Z/1997-10-25T06:31:43Z
Version
1.0
Mission Description
The Infrared Space Observatory (ISO) was the worlds first true orbiting infrared observatory. Equipped with four highly-sophisticated and versatile scientific instruments, it was launched by Ariane in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the Universe at infrared wavelengths.
European Space Agency, EGAMI et al., 1998, 'SWS SPECTROSCOPY OF A SEYFERT2 WARM ULTRALUMINOUS GALAXY IRAS 05189-2524', 1.0, European Space Agency, https://doi.org/10.5270/esa-ldm98rz
