Whole-Disk Observations of Jupiter, Saturn, and Mars in Millimeter/Submillimeter Bands

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© 1997. The American Astronomical Society. All rights reserved. Printed in U.S.A.
, , Citation A. B. Goldin et al 1997 ApJ 488 L161 DOI 10.1086/310919

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Author affiliations

1 Department of Astronomy and Astrophysics, and Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637

2 Laboratory for Astronomy and Solar Physics, NASA/Goddard Space Flight Center, Code 685, Greenbelt, MD 20771

3 Global Science and Technology, Inc., Laboratory for Astronomy and Solar Physics, NASA/Goddard Space Flight Center, Code 685, Greenbelt, MD 20771

4 Hughes STX, Laboratory for Astronomy and Solar Physics, NASA/Goddard Space Flight Center, Code 685, Greenbelt, MD 20771

5 Department of Physics, University of California, Santa Barbara, Santa Barbara, CA 93106

Dates

  1. Received 1996 December 4
  2. Accepted 1997 July 28
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1538-4357/488/2/L161

Abstract

New balloon-borne observations of whole-disk brightness ratios for Jupiter, Saturn, and Mars are reported in four millimeter/submillimeter bands of bandwidth Δν ≈ 1-2 cm-1. Using the effective planetary radii of Hildebrand et al., we find that TMars/TJupiter=1.158 ± 0.015, 1.189 ± 0.015, 1.470 ± 0.019, and 1.515 ± 0.019 and TSaturn/TJupiter=0.833 ± 0.012, 0.758 ± 0.010, 0.818 ± 0.012, and 0.840 ± 0.012, at ν=5.7, 9.5, 16.5, and 22.5 cm-1, respectively. Using models for the brightness temperature of Mars, we also give the whole-disk brightness temperatures for Jupiter and Saturn for the four frequencies.

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10.1086/310919