Search Results - "Espenak, F."

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    Refraction by Earth’s Atmosphere near 12 Microns by Livengood, T. A., Fast, K. E., Kostiuk, T., Espenak, F., Buhl, D., Goldstein, J. J., Hewagama, T., Ro, K. H.

    “…We have measured chromatic differential refraction of astronomical images by the Earth’s atmosphere, comparing visible light at 500–600 nm with infrared near…”
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  3. 3

    New features in Saturn's atmosphere revealed by high-resolution thermal infrared images by Gezari, D. Y., Mumma, M. J., Espenak, F., Deming, D., Bjoraker, G., Woods, L., Folz, W.

    Published in Nature (London) (14-12-1989)
    “…Observations of the stratospheric IR emission structure on Saturn are presented. The high-spatial-resolution global images show a variety of new features,…”
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  4. 4

    Ozone abundance on Mars from infrared heterodyne spectra I. acquisition, retrieval, and anticorrelation with water vapor by FAST, Kelly, KOSTIUK, Theodor, SCHMÜLLING, Frank, ESPENAK, Fred, ANNEN, John, BUHL, David, HEWAGAMA, Tilak, A'HEAM, Michael F, ZIPOY, David, LIVENGOOD, Timothy A, SONNABEND, Guido

    Published in Icarus (New York, N.Y. 1962) (01-01-2006)
    “…Observations of ozone on Mars were made using the Goddard Space Flight Center's Infrared Heterodyne Spectrometer and Heterodyne Instrument for Planetary Wind…”
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  5. 5

    Direct measurement of winds on Titan by Kostiuk, Theodor, Fast, Kelly E., Livengood, Timothy A., Hewagama, Tilak, Goldstein, Jeffrey J., Espenak, Fred, Buhl, David

    Published in Geophysical research letters (15-06-2001)
    “…We report the first direct measurement of wind velocity in the atmosphere of Titan, one of only two examples in our solar system of a slowly‐rotating body with…”
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  6. 6

    Beam integrated high-resolution infrared spectra: Accurate modeling of thermal emission from extended clear atmospheres by Hewagama, T., Goldstein, J., Livengood, T.A., Buhl, D., Espenak, F., Fast, K., Kostiuk, Th, Schmülling, F.

    “…We describe a technique for analysis of high resolution thermal IR spectra measured with a finite beam (field of view) on the target planetary atmosphere. The…”
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  7. 7

    Infrared helioseismology - Detection of the chromospheric mode by Deming, D., Kaeufl, H. U., Espenak, F., Glenar, D. A., Hill, A. A.

    Published in Nature (London) (17-07-1986)
    “…Time-series observations of an infrared solar OH absorption line profile have been obtained on two consecutive days using a laser heterodyne spectrometer to…”
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  8. 8

    Temporal Behavior of Stratospheric Ammonia Abundance and Temperature Following the SL9 Impacts by Fast, Kelly, Kostiuk, Theodor, Romani, Paul, Espenak, Fred, Hewagama, Tilak, Betz, Albert, Boreiko, Rita, Livengood, Timothy

    Published in Icarus (New York, N.Y. 1962) (01-04-2002)
    “…Infrared emission lines of stratospheric ammonia (NH 3) were observed following the collisions of the fragments of Comet Shoemaker–Levy 9 with Jupiter in July…”
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  9. 9

    Stratospheric ozone profiles from Mauna Kea, Hawai'i (19.8°N, 155.5°W) using infrared heterodyne spectroscopy, 1988–2003 by Fast, Kelly E., Kostiuk, Theodor, Espenak, Fred, Livengood, Timothy A., Hewagama, Tilak, A'Hearn, Michael F.

    Published in Geophysical research letters (01-04-2004)
    “…We present stratospheric ozone abundance profiles retrieved from absorption spectroscopy of the atmosphere backlit by thermal continuum emission of the Moon…”
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  10. 10

    Automated Meteor Detection and the Leonid Shower by Mallama, Anthony, Espenak, Fred

    “…A computer‐automated radio system for monitoring meteor activity is described. The receiver is tuned to the frequency of a television video carrier whose…”
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    Stratospheric Ammonia on Jupiter after the SL9 Collision by Kostiuk, Theodor, Buhl, David, Espenak, Fred, Romani, Paul, Bjoraker, Gordon, Fast, Kelly, Livengood, Timothy, Zipoy, David

    Published in Icarus (New York, N.Y. 1962) (01-06-1996)
    “…We report results from measurements of NH3emission lines from the stratosphere of Jupiter following the impacts of fragments of Comet P/Shoemaker–Levy 9…”
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  12. 12

    Ethane abundance on Titan by Kostiuk, Theodor, Fast, Kelly, Livengood, Timothy A., Goldstein, Jeffrey, Hewagama, Tilak, Buhl, David, Espenak, Fred, Ro, Kyung Ho

    Published in Planetary and space science (1997)
    “…Ethane (C 2H 6) abundance in Titan's stratosphere is determined from recent ground based high spectral resolution measurements of individual ethane emission…”
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    Discovery of Natural Gain Amplification in the 10-Micrometer Carbon Dioxide Laser Bands on Mars: A Natural Laser by Mumma, Michael J., Buhl, David, Chin, Gordon, Deming, Drake, Espenak, Fred, Kostiuk, Theodor, Zipoy, David

    “…Fully resolved intensity profiles of various lines in the carbon dioxide band at 10.4 micrometers have been measured on Mars with an infrared heterodyne…”
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