ngc5252 is one of the most spectacular examples for the anisotropy of the radiation in seyfert galaxies. unambiguous evidence for that has been provided from the 21cm observations by prieto & freudling,93 apj418,668. the key issue on whether the observed anisotropy is intrinsic to the source or due to obscuration is currently being addressed through a multi-wavelength study of its nuclear region. this proposal address the study of n5252 in the middle_ir and proposes imaging of its nuclear region with cam. three goals are pursued: 1rst, to determine the shape of the truly ir nuclear continuum emission; 2nd, to map the 10 arcsec circumnuclear structure seen in near-ir/optical ratio images 3rth, to check for the presence of dust/molecular material features,these being crucial discriminants for modeling of the nuclear source. isocam data will be complemented with long wavelength imaging that will be collected with phot as a part of the garanteed iso time programmes, and where n5252 has set with priority 1.
Instrument
CAM01
Temporal Coverage
1996-08-03T05:38:58Z/1996-08-03T09:01:31Z
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.
