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Author Rothermel, H.; Käufl, H. U.; Schrey, U.; Drapatz, S.
Title Thermal structure of the Martian mesosphere Type Journal Article
Year 1988 Publication Astron. Astrophys. Abbreviated Journal A&A
Volume 196 Issue (down) Pages 296-300
Keywords atmospheric temperature, carbon dioxide, infrared spectroscopy, mars atmosphere, mesosphere, emission spectra, line spectra, spatial resolution, mars, atmosphere, mesosphere, structure, thermal properties, spectra, spectroscopy, earth-based observations, temperature, patterns, infrared, polar regions, wavelengths, equipment, procedure, carbon dioxide, emissions
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Call Number Rothermel1988 Serial 450
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Author Johnson, M. A.; Betz, A. L.; McLaren, R. A.; Townes, C. H.; Sutton, E. C.
Title Nonthermal 10 micron CO2 emission lines in the atmospheres of Mars and Venus Type Journal Article
Year 1976 Publication Astron. Astrophys. Abbreviated Journal A&A
Volume 208 Issue (down) Pages 145
Keywords carbon dioxide, emission spectra, infrared spectra, mars atmosphere, nonthermal radiation, optical heterodyning, planetary radiation, venus atmosphere, absorption spectra, energy transfer, line spectra, molecular absorption, molecular collisions, near infrared radiation, solar flux
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Call Number ref1976ApJ...208L.145J Serial 451
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Author Kaeufl, H. U.; Rothermel, H.; Drapatz, S.
Title Indication for H2O in the upper atmosphere of Mars Type Journal Article
Year 1984 Publication Astron. Astrophys. Abbreviated Journal A&A
Volume 141 Issue (down) Pages 430-432
Keywords atmospheric moisture, mars atmosphere, upper atmosphere, water vapor, carbon dioxide, emission spectra, nonequilibrium thermodynamics, polar regions
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Call Number Serial 452
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Author Rothermel, H.; Käufl, H. U.; Yu, Y.
Title A heterodyne spectrometer for astronomical measurements at 10 micrometers Type Journal Article
Year 1983 Publication Astron. Astrophys. Abbreviated Journal A&A
Volume 126 Issue (down) Pages 387-392
Keywords astronomical spectroscopy, infrared astronomy, infrared spectrometers, optical heterodyning, infrared telescopes, laser spectrometers, mars (planet), venus (planet)
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Call Number Serial 453
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Author Bruderer, S.; Benz, A. O.; van Dishoeck, E. F.; Melchior, M.; Doty, S. D.; van der Tak, F.; Stäuber, P.; Wampfler, S. F.; Dedes, C.; Yıldız, U. A.; Pagani, L.; Giannini, T.; de Graauw, Th.; Whyborn, N.; Teyssier, D.; Jellema, W.; Shipman, R.; Schieder, R.; Honingh, N.; Caux, E.; Bächtold, W.; Csillaghy, A.; Monstein, C.; Bachiller, R.; Baudry, A.; Benedettini, M.; Bergin, E.; Bjerkeli, P.; Blake, G. A.; Bontemps, S.; Braine, J.; Caselli, P.; Cernicharo, J.; Codella, C.; Daniel, F.; di Giorgio, A. M.; Dominik, C.; Encrenaz, P.; Fich, M.; Fuente, A.; Goicoechea, J. R.; Helmich, F.; Herczeg, G. J.; Herpin, F.; Hogerheijde, M. R.; Jacq, T.; Johnstone, D.; Jørgensen, J. K.; Kristensen, L. E.; Larsson, B.; Lis, D.; Liseau, R.; Marseille, M.; McCoey, C.; Melnick, G.; Neufeld, D.; Nisini, B.; Olberg, M.; Parise, B.; Pearson, J. C.; Plume, R.; Risacher, C.; Santiago-García, J.; Saraceno, P.; Shipman, R.; Tafalla, M.; van Kempen, T. A.; Visser, R.; Wyrowski, F.
Title Herschel/HIFI detections of hydrides towards AFGL 2591. Envelope emission versus tenuous cloud absorption Type Journal Article
Year 2010 Publication Astron. Astrophys. Abbreviated Journal
Volume 521 Issue (down) Pages L44 (1 to 7)
Keywords HEB mixer applications, HIFI, Herschel
Abstract The Heterodyne Instrument for the Far Infrared (HIFI) onboard the Herschel Space Observatory allows the first observations of light diatomic molecules at high spectral resolution and in multiple transitions. Here, we report deep integrations using HIFI in different lines of hydrides towards the high-mass star forming region AFGL 2591. Detected are CH, CH+, NH, OH+, H2O+, while NH+ and SH+ have not been detected. All molecules except for CH and CH+ are seen in absorption with low excitation temperatures and at velocities different from the systemic velocity of the protostellar envelope. Surprisingly, the CH(JF,P = 3/22,- – 1/21,+ ) and CH+(J = 1–0, J = 2–1) lines are detected in emission at the systemic velocity. We can assign the absorption features to a foreground cloud and an outflow lobe, while the CH and CH+ emission stems from the envelope. The observed abundance and excitation of CH and CH+ can be explained in the scenario of FUV irradiated outflow walls, where a cavity etched out by the outflow allows protostellar FUV photons to irradiate and heat the envelope at larger distances driving the chemical reactions that produce these molecules.
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Call Number Serial 1083
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