ESPRIT: a study concept for a far-infrared interferometer in space

W. Wild; Th. de Graauw; F. Helmich; A. Baryshev; J. Cernicharo; J. R. Gao; A. Gunst; A. Bos; J.-W. den Herder; B. Jackson; V. Koshelets; H.-J. Langevelde; P. Maat; J. Martin-Pintado; J. Noordam; P. Roelfsema; L. Venema; P. Wesselius; P. Yagoubov

doi:10.1117/12.789603

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28 July 2008 ESPRIT: a study concept for a far-infrared interferometer in space

W. Wild, Th. de Graauw, F. Helmich, A. Baryshev, J. Cernicharo, J. R. Gao, A. Gunst, A. Bos, J.-W. den Herder, B. Jackson, V. Koshelets, H.-J. Langevelde, P. Maat, J. Martin-Pintado, J. Noordam, P. Roelfsema, L. Venema, P. Wesselius, P. Yagoubov

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Proceedings Volume 7013, Optical and Infrared Interferometry; 70132R (2008) https://doi.org/10.1117/12.789603
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

In the far-infrared (FIR) / THz regime the angular (and often spectral) resolution of observing facilities is still very restricted despite the fact that this frequency range has become of prime importance for modern astrophysics. ALMA (Atacama Large Millimeter Array) with its superb sensitivity and angular resolution will only cover frequencies up to about 1 THz, while the HIFI instrument for ESA'a Herschel Space Observatory will provide limited angular resolution (10 to 30 arcsec) up to 2 THz. Observations of regions with star and planet formation require extremely high angular resolution as well as frequency resolution in the full THz regime. In order to open these regions for high-resolution astrophysics we present a study concept for a heterodyne space interferometer, ESPRIT (Exploratory Submm Space Radio-Interferometric Telescope). This mission will cover the Terahertz regime inaccessible from the ground and outside the operating range of the James Webb Space Telescope (JWST).

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W. Wild, Th. de Graauw, F. Helmich, A. Baryshev, J. Cernicharo, J. R. Gao, A. Gunst, A. Bos, J.-W. den Herder, B. Jackson, V. Koshelets, H.-J. Langevelde, P. Maat, J. Martin-Pintado, J. Noordam, P. Roelfsema, L. Venema, P. Wesselius, and P. Yagoubov "ESPRIT: a study concept for a far-infrared interferometer in space", Proc. SPIE 7013, Optical and Infrared Interferometry, 70132R (28 July 2008); https://doi.org/10.1117/12.789603

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