synchrotron and dust emission both play an important role in the infrared emission of quasars and agn. we propose to observe a complete sample of quasars (the bright quasar sample) to study the interplay of both components, to see how radio loud and radio quiet sources differ, to correlate the ir properties with those measured in other bands, to measure the dust emission spectrum. we also want to observe few particularly unusual sources and compare them with the main sample. we propose photometric observations of those sources of the complete sample we define below that are not observed in the core program between 7.3 micron and 200 microns. we also propose spectroscopic observations of 4 sources, among the brightest, to detect possible emission features associated with dust. we have data covering the electromagnetic spectrum from the visible to the x-rays for all sources of the sample. the iso observations will therefore be correlated with other properties of the sources, like x-ray emission, the importance of the blue bump, line properties, radio emission properties, etc.
Instrument
PHT03 , PHT22
Temporal Coverage
1996-04-27T05:42:55Z/1998-03-15T00:31:57Z
Version
1.0
Mission Description
The Infrared Space Observatory (ISO) was the world's 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.
