Abstract
A spectrum of the satellite of Jupiter, Io, from 0.86 to 2.7 μm at a resolution of 3.36 cm-1 and a signal to rms noise ratio of 120 is presented. No absorptions due to any atmospheric constituents on Io could be found on the spectrum. Upper limits of 0.12 cm-atm for NH3, 0.12cm-atm for CH4, 0.4cm-atm for N2O, and 24cm-atm for H2S were determined. Laboratory spectra of ammonia frosts as a function of temperature were compared with the spectrum of Io and showed as a frost not to be present at the surface of Io. A search for possible resonance lines of carbon, silicon, and sulfur as well as the 1.08μm line of helium proved negative and upper emission limits of 60, 18, 27, and 60 kilorayleighs, respectively, were established for these lines.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 439-446 |
| Number of pages | 8 |
| Journal | Icarus |
| Volume | 27 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1976 |
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ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics
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New upper limits for atmospheric constituents on Io. / Fink, Uwe -; Larson, Harold P.; Gautier, Thomas N.
In: Icarus, Vol. 27, No. 3, 1976, p. 439-446.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - New upper limits for atmospheric constituents on Io
AU - Fink, Uwe -
AU - Larson, Harold P.
AU - Gautier, Thomas N.
PY - 1976
Y1 - 1976
N2 - A spectrum of the satellite of Jupiter, Io, from 0.86 to 2.7 μm at a resolution of 3.36 cm-1 and a signal to rms noise ratio of 120 is presented. No absorptions due to any atmospheric constituents on Io could be found on the spectrum. Upper limits of 0.12 cm-atm for NH3, 0.12cm-atm for CH4, 0.4cm-atm for N2O, and 24cm-atm for H2S were determined. Laboratory spectra of ammonia frosts as a function of temperature were compared with the spectrum of Io and showed as a frost not to be present at the surface of Io. A search for possible resonance lines of carbon, silicon, and sulfur as well as the 1.08μm line of helium proved negative and upper emission limits of 60, 18, 27, and 60 kilorayleighs, respectively, were established for these lines.
AB - A spectrum of the satellite of Jupiter, Io, from 0.86 to 2.7 μm at a resolution of 3.36 cm-1 and a signal to rms noise ratio of 120 is presented. No absorptions due to any atmospheric constituents on Io could be found on the spectrum. Upper limits of 0.12 cm-atm for NH3, 0.12cm-atm for CH4, 0.4cm-atm for N2O, and 24cm-atm for H2S were determined. Laboratory spectra of ammonia frosts as a function of temperature were compared with the spectrum of Io and showed as a frost not to be present at the surface of Io. A search for possible resonance lines of carbon, silicon, and sulfur as well as the 1.08μm line of helium proved negative and upper emission limits of 60, 18, 27, and 60 kilorayleighs, respectively, were established for these lines.
UR - http://www.scopus.com/inward/record.url?scp=49549130881&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=49549130881&partnerID=8YFLogxK
U2 - 10.1016/0019-1035(76)90022-1
DO - 10.1016/0019-1035(76)90022-1
M3 - Article
AN - SCOPUS:49549130881
VL - 27
SP - 439
EP - 446
JO - Icarus
JF - Icarus
SN - 0019-1035
IS - 3
ER -