we would like to make iso follow-up observations of kepler, a young galactic supernova remnant (snr). previous isocam observations of this remnant have been performed with two broad-band filters (lw8 and lw9) and five cvf positions (9.8, 10.5 11.3, 12, 12.8 microns). the ir emission has been resolved and intringuing features, such as a line at 12 microns near the center of the remnant, have been revealed (see figure 1). in order to better assess the origin of the observed emission, we propose to perform a full isocam cvf scan of the remnant. we expect to detect gaseous forbidden lines from ne, ar, s, ni and perhaps fe. the ni and fe lines are of particular interest, as these elements are typical nuclear burning products of type i sn, so that information on the nucleosynthesis can be retreived. we also aim at detecting the circumstellar dust continuum emission and at caracterising the dust composition (e.g. silicate feature). the observations of kepler (possibly a type ia sn) will complement iso cvf scans of two other young galactic snr.s: cas-a (probably a type ib sn) and the crab nebula (a type ii sn). given the expected fluxes from kepler and given the need for spectro-imaging observations over the whole remnant, the cvf mode of isocam appears to be the ideal way to conduct the observations. the total time requested to perform the observations is 1 hour 35 minutes.
Instrument
CAM04
Temporal Coverage
1998-03-01T11:03:28Z/1998-03-01T12:34:54Z
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.
