about one-third of the serendipity survey slews have been searched for high signal-to-noise sources centrally crossed and seen with three or four pixels having none or a weak counterpart within the iras 100 um database. out of about 3000 sources identified to fulfill these criteria, seven sources have been selected for isophot follow-up observations. all except the cirrus ridge have been identified on poss with either galaxies or compact galactic dark clouds. a galactic cirrus ridge seen on the iras 100 um map with a very narrow, almost point-like profile perpendicular to the major axis has been added. photometric and mapping observations of these sources with isophot will provide evidence for possible classes of galactic and extragalactic sources containing very cold dust. they will also serve as templates for the interpretation of the huge number of galaxies and cirrus structures contained in the survey. the proposed observations require about 5 hours discretionary time. three more sources will be observed during 2 hours of guaranteed time, contributed by the consortium on the isophot serendipity survey (ciss) soc team member m. kessler.
Instrument
PHT22
Temporal Coverage
1998-03-25T08:57:48Z/1998-04-04T11:08:31Z
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.
