Publication Abstracts

Woolf et al. 1969

Woolf, N.J., W.F. Hoffmann, C.L. Frederick, and F.J. Low, 1969: A discussion on infared astronomy — A far infrared sky survey. Phil. Trans. Roy. Soc. A, 264, 267-271, doi:10.1098/rsta.1969.0023.

A balloon-borne instrument for making for 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. The upper limit to the flux from other sources was 3×10-12 W/cm2 in the 300 to 360 µm band, or approximately 2×10-23 W/cm2/Hz. A blackbody (optically thick) source 2° or greater in diameter yielding this flux would have a temperature of 10 degrees K. A warmer, small or optically thin source providing this much radiation in the Rayleigh-Jeans tail of the Plank distribution would have a temperature averaged over the 2° beam of 0-6°K. These observations can be used to set upper limits to the opacity and temperature of interstellar grains.

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BibTeX Citation

  author={Woolf, N. J. and Hoffmann, W. F. and Frederick, C. L. and Low, F. J.},
  title={A discussion on infared astronomy — A far infrared sky survey},
  journal={Philosophical Transactions of the Royal Society A},

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RIS Citation

ID  - wo03000u
AU  - Woolf, N. J.
AU  - Hoffmann, W. F.
AU  - Frederick, C. L.
AU  - Low, F. J.
PY  - 1969
TI  - A discussion on infared astronomy — A far infrared sky survey
JA  - Phil. Trans. Roy. Soc. A
JO  - Philosophical Transactions of the Royal Society A
VL  - 264
SP  - 267
EP  - 271
DO  - 10.1098/rsta.1969.0023
ER  -

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