we have imaged with isocam, at 4.5 and 15 microns, an extended near edge-on dust disk surrounding the young b5 v star bd +31 643 (first reported in the visible by kalas and jewitt 1997). we propose follow-up observations at fir wavelengths with isophot in order to determine the total dust mass of the disk, and the temperature of the larger dust grains. we propose pht fir polarimetry to study the properties and alignment of grains in any associated field. we also propose cam cvf spectrometry in order to ascertain, with spatial resolution across the approximately 1 arcminute radius disk, the contribution of unidentified infrared band (uib) emission to the 5 to 17 micron flux.
Instrument
CAM04 , PHT22
Temporal Coverage
1998-03-16T15:12:17Z/1998-03-16T19:00:39Z
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.
European Space Agency, 1999, Fir Photometry And Cam Cvf Observations Of A Disk Around Bd+31 643, 1.0, European Space Agency, https://doi.org/10.5270/esa-5j27u06
