The FIRST ESA Cornerstone Mission

Details The FIRST ESA Cornerstone Mission The FIRST ESA Cornerstone Mission

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001iaus..204..481p&link_type=abstract

The Extragalactic Infrared Background and its Cosmological Implications, Proceedings of IAU Symposium #204, held 15-18 August 20

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The `Far InfraRed and Submillimetre Telescope', (FIRST), is the fourth cornerstone mission in the European Space Agency (ESA) science programme. FIRST will perform photometry and spectroscopy in approximately the 60-670 μm range in the far infrared and submillimetre part of the spectrum. The FIRST wavelength range bridges the gap between what can be well observed from current and future groundbased facilities and that of other space missions. The key scientific topics to be addressed by FIRST will be diverse with emphasis on many aspects of star and galaxy formation, and ISM physics. Given the science objectives of the FIRST mission it is clear that projects in the form of large spatial and spectral surveys will constitute important elements of the observing programme. FIRST will have a passively cooled 3.5 m diameter, low emissivity Ritchey-Chrétien telescope, to be provided by JPL as part of NASA's involvement in the FIRST mission. The science payload complement will consist of three instruments, two `cameras' with medium resolution spectrometers called PACS (PI: A. Poglitsch, MPE) and SPIRE (PI: M. Griffin, QMW), and a very high resolution heterodyne spectrometer (PI: Th. de Graauw, SRON). They will be housed inside a superfluid helium cryostat likely based on the successful ISO design. I will describe the present state of the FIRST mission.

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