IMPP: The far-infrared IMaging Photometer and Polarimeter for SOFIA

If constructed, the SOFIA far-infrared IMaging Photometer and Polarimeter (IMPP) will be capable of performing simultaneous dual-wavelength (60 & 80 mu m) wide-field (2 x 4 arcmin) imaging and dual-polarization (70 mu m) polarimetric imaging. The broad photometric (20 mu m) and polarimetric (40 mu m) bandpasses and 7 arcsec diffraction-limited pixels will permit background-limited faint object detection and mapping. The dual-wavelength capability will enable acquiring flux and spectral index maps simultaneously, using a single telescope pointing and integration. The dual-polarization capability will provide the highest precision magnetic field maps possible with current technology. IMPP will be a general purpose instrument capable of addressing a wide range of astrophysical studies involving young protostellar environments, normal and starburst galaxies, and solar systems as well as providing follow-up, high resolution imaging of ISO, WIRE, 2MASS, and SIRTF targets. Design and construction of IMPP will meet current and future needs for state-of-the-art airborne far-infrared imaging science, demonstrate instrumentation and operations concepts for future space missions (such as a magnetic field mapping mission), educate young instrumentalists, and provide opportunities for transferring interest and enthusiasm for science to many K-12 teachers.