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8. Report on 21-cm. observations between l = 60° and l = 135°

Published online by Cambridge University Press:  14 August 2015

T. A. Matthews
T. A. Matthews*
Affiliation:
Harvard College Observatory, Cambridge, Mass., U.S.A.

Extract

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Observations of the 21-cm. hydrogen profiles have been taken between galactic longitudes l = 60° and l = 135°, with the 24-ft. radio telescope at the George R. Agassiz Station. The beam-width of the antenna is approximately 1°·7 between the half-power points. The electronic equipment used was a d.c. comparison radiometer, which has a signal channel with a frequency band-width of 15 kc./s. between the half-power points. At galactic latitude b = 0° the observations are generally spaced 2°·5 apart, although a few gaps of 5° exist. At b = + 15° and b = ሢ 15° the centres are 5° apart. A strip in latitude at l = 100°, and other centres at various latitudes (mainly at l = 75° and l = 87°·5) have also been taken, but little reference will be made to this material in the present paper.

Type
Part I: Spectral Line Investigations
Information
Symposium - International Astronomical Union , Volume 4: Radio Astronomy , 1957 , pp. 48 - 55
Copyright
Copyright © Cambridge University Press 1957 

References

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