we propose to observe a specially selected high redshift starburst galaxy, iras f15307+3252 at z = 0.93, in order to probe the physical conditions deep within the source. this object is one of the most luminous in the universe, and may be going through its first phase of star formation. the source is abundant in molecular gas and dust because its rest frame emission shows the 100-200 micron peak indicative of warm (100k) dust. this dust, however, shields the nucleus from all but mid-ir and longer wavelengths. by observing these sources in several carefully selected mid-ir diagnostic emission lines, we expect to positively identify the nature of the central heating source, that is to distinguish between starburst and agn power sources. the iso satellite is ideally and uniquely suited to this project, as it will be able to detect dust penetrating mid-ir diagnostic emision lines which cannot be seen from the ground.
Instrument
SWS02
Temporal Coverage
1996-08-27T06:04:07Z/1997-01-23T20:48:07Z
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.
