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A far-infrared polarimeter for balloon astronomy
Infrared Physics, 1978Abstract We have developed a liquid helium cooled far-infrared polarimeter, designed for astronomical observations with the Imperial College 41 in. balloon telescope.
D.L. Rosen, R.D. Joseph
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Mid- and far-infrared astronomy mission SPICA
Advances in Space Research, 2007Abstract We present an overview and the current status of SPICA (Space Infrared Telescope for Cosmology and Astrophysics), which is an astronomical mission with a cryogenically cooled 3.5 m telescope optimized for mid- and far-infrared astronomy. Because of its high spatial resolution and unprecedented sensitivity in the mid- to far-infrared, SPICA ...
Takao Nakagawa, Hiroshi Murakami
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Filters for Far Infrared Astronomy
1972In developing far infrared photometers for astronomical purposes one of the main problems is the efficient spectral filtering of the radiation. As a consequence of the unknown spectral distribution of the usually weak radiation of the objects, the filterbands must have a high transmission with steep edges; in addition a specified spectral band and ...
J. J. Wijnbergen +2 more
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Submillimeter and Far-Infrared Observing Platforms for Astronomy
2001During the next decade several airborne and space-borne platforms for far-infrared and submillimeter astronomy and spectroscopy will become operational These observatories will provide sensitivity and spatial resolution several times better than previous missions.
Hübers, H.-W., Röser, H. P.
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Far-infrared stellar astronomy
Symposium - International Astronomical Union, 1966The photometer with which I am presently observing stellar radiation responds in the wavelength band extending from 8 to 14 microns. I believe common usage places the boundary between the intermediate and far infrared at 10 microns. From the title of this paper one may therefore infer that what I say today is at least one-third wrong from the start.
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The Potential for Far-infrared Astronomy in Australia
Publications of the Astronomical Society of Australia, 1982Despite its superb optical and radio observatories, Australia is essentially blind to the entire submillimeter and far-infrared spectrum. The importance of this spectral region can perhaps best be illustrated by reference to Figure 1, which shows the flux of the galaxy NGC253 as a function of frequency.
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A discussion on infared astronomy - A far infrared sky survey
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1969Abstract A balloon-borne instrument for making far infrared sky surveys with 2° angular resolution is described. In two initial flights at a wavelength of 320 μm approximately half of the celestial sphere including most of the northern milky way was surveyed. The thermal emission of the moon was alone detected.
N. J. Woolf +3 more
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GaAs homojunction far-infrared detectors for astronomy applications
SPIE Proceedings, 1998ABSTRACT A high performance, bias tunable, p-GaAs homojunction interfacial workfunction internal photoemission (HI-WIP) far-infrared (FIR) detector has been demonstrated. A responsivity of 3.10 0.05 A/W, a quantum efficiencyof 12.5 %, and a detectivity D* of 5.9x10'° cmv'ii/W (NEP of 4.4x10'3 W/v"i), were obtained at 4.2K, forcutoff wavelengths from 80
A. G. Unil Perera +6 more
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Limitations of ground based near and far infrared astronomy
Infrared Physics, 1975Abstract The possibilities of ground based infrared astronomy are discussed. It is shown that telescopes used up to now are not optimized and that the Diffraction Limited Detectivity conditions (DLD) cannot be reached, in the near infrared, by the larger telescopes. The maximum useful diameters for near i.r. and far i.r.
G. Dall'Oglio +4 more
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