> in this proposal, more time is being requested for ccox.clusfir > time is to be transferred to this proposal from ccox.clusfir iras detected far-infrared emission typical of cool dust from the inner 100 to 200 kpc of 10% of rich clusters of galaxies. the fir luminosities of these clusters are 1e44 to 1e45 ergs/s, comparable to the entire blue luminosity of the central cd galaxy and larger than the x-ray emission from the cluster core. the dust that emits this fir radiation is probably heated by collisions with hot cluster gas, which has the profound implication that fir emission should be as important as x-ray emission for cooling the cores of these clusters. we propose 60 to 180 um isophot mapping observations of abell 1691 to determine the origin of the dust (whether this material was stripped from galaxies or is due to stellar mass loss in the cd) and the temperature and mass of the dust.
Instrument
PHT32
Temporal Coverage
1997-07-10T07:38:34Z/1997-07-10T09:22:46Z
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.
