ISSTT Proceedings

ISSTT Proceedings

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The Background-Limited Infrared Submillimeter Spectrograph (BLISS) for SPICA

Authors:
C. M. Bradford on behalf of the BLISS-SPICA study team
Abstract:
With the advent of new large-format far-IR / submm arrays, imaging surveys are revealing hundreds of thousands of dusty galaxies from the first half of the Universe’s history when the bulk of star formation and black hole growth likely occurred. The key to studying these objects is spectroscopy in the rest-frame mid- to far-IR. Fine-structure and molecular transitions in this waveband are largely unaffected by dust extinction and the suite of lines provides redshifts and reveals the properties of the embedded stellar and black-hole energy sources. We have developed BLISS to provide a breakthrough capability for far-IR survey spectroscopy at wavelengths between JWST and ALMA. SPICA's large cold aperture allows mid-IR to submm observations which are limited only by the natural backgrounds, and BLISS-SPICA is 6 orders of magnitude faster than the spectrometers on Herschel and SOFIA in obtaining full-band spectra. The sensitivity allows study of galaxies at all epochs back to the first billion years after the Big Bang (z~6), making BLISS-SPICA the ideal platform for spectroscopic follow-up for the wide variety of sources now being discovered with far-IR and submm imaging.
Categories:
Systems, Observations
Year:
2010
Session:
10
Full-text:
Download a PDF of this paper.
Page Number(s):
228