Search Results - "Trafton, L. M."

1-D DSMC simulation of Io's atmospheric collapse and reformation during and after eclipse by Moore, C.H., Goldstein, D.B., Varghese, P.L., Trafton, L.M., Stewart, B.

“…A one-dimensional Direct Simulation Monte Carlo (DSMC) model is used to examine the effects of a non-condensable species on Io's sulfur dioxide sublimation…”
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New limits on H+3 abundance on Neptune using Keck NIRSPEC by Melin, H., Stallard, T., Miller, S., Lystrup, M. B., Trafton, L. M., Booth, T. C., Rivers, C.

“…Neptune and Uranus are observed with Keck II NIRSPEC in an attempt to detect H+ 3 emission from Neptune. In this set of observations, H+ 3 emission remains…”
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The H3+ ionosphere of Uranus: decades-long cooling and local-time morphology by Melin, Henrik, Fletcher, L N, Stallard, T S, Miller, S, Trafton, L M, Moore, L, O'Donoghue, J, Vervack, R J, Dello Russo, N, Lamy, L, Tao, C, Chowdhury, M N

“…The upper atmosphere of Uranus has been observed to be slowly cooling between 1993 and 2011. New analysis of near-infrared observations of emission from H 3 +…”
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Transport of water in a transient impact-generated lunar atmosphere by Prem, P., Artemieva, N.A., Goldstein, D.B., Varghese, P.L., Trafton, L.M.

“…•We simulate numerically the delivery of lunar water through comet impacts.•The impact-generated vapor forms a collisionally thick, transient lunar…”
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The H 3 + ionosphere of Uranus: decades-long cooling and local-time morphology by Melin, Henrik, Fletcher, L N, Stallard, T S, Miller, S, Trafton, L M, Moore, L, O'Donoghue, J, Vervack, Jr, R J, Dello Russo, N, Lamy, L, Tao, C, Chowdhury, M N

“…The upper atmosphere of Uranus has been observed to be slowly cooling between 1993 and 2011. New analysis of near-infrared observations of emission from H…”
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DSMC simulation of Europa water vapor plumes by Berg, J.J., Goldstein, D.B., Varghese, P.L., Trafton, L.M.

“…•Water vapor plumes on Europa are modeled using DSMC.•Plume structure primarily governed by the mass flow rate of the vent.•Mass flow rate of ∼1000kg/s leads…”
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HST Spectroscopic Observations of Jupiter After the Collision of Comet Shoemaker-Levy 9 by Noll, K. S., McGrath, M. A., Trafton, L. M., Atreya, S. K., Caldwell, J. J., Weaver, H. A., Yelle, R. V., Barnet, C., Edgington, S.

“…Ultraviolet spectra obtained with the Hubble Space Telescope identified at least 10 molecules and atoms in the perturbed stratosphere near the G impact site,…”
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Variability in the H + 3 emission of Saturn: Consequences for ionisation rates and temperature by Melin, Henrik, Miller, Steve, Stallard, Tom, Trafton, L.M., Geballe, T.R.

“…We present an analysis of observations of the auroral/polar regions of Saturn, carried out in 1999, 2004 and 2005, making use of the facility spectrometer,…”
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HST/STIS observations and simulation of Io’s emission spectrum in Jupiter shadow: Probing Io’s Jupiter-facing eclipse atmosphere by Trafton, L.M., Moore, C.H., Goldstein, D.B., Varghese, P.L., McGrath, M.A.

“…► Io’s MUV aurorae have been observed and simulated in eclipse. ► Emission from SO2, SO, and S I has been detected and simulated. ► The emission is consistent…”
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Mutual Event Observations of Io's Sodium Corona by Burger, M. H, Schneider, N. M, de Pater, I, Brown, M. E, Bouchez, A. H, Trafton, L. M, Sheffer, Y, Barker, E. S, Mallama, A

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Ammonia and Eddy Mixing Variations in the Upper Troposphere of Jupiter from HST Faint Object Spectrograph Observations by Edgington, S.G., Atreya, S.K., Trafton, L.M., Caldwell, J.J., Beebe, R.F., Simon, A.A., West, R.A.

“…Ultraviolet spectra of the northern and southern hemispheres of Jupiter taken with the Hubble Space Telescope Faint Object Spectrograph (FOS) in May 1992 and…”
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Seasonal Variability in the Ionosphere of Uranus by Melin, H, Stallard, T, Miller, S, Trafton, L. M, Encrenaz, Th, Geballe, T. R

“…Infrared ground-based observations using IRTF, UKIRT, and Keck II of Uranus have been analyzed as to identify the long-term behavior of the H+ 3 ionosphere…”
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HST Spectra of the Jovian Ultraviolet Aurora: Search for Heavy Ion Precipitation by Trafton, L. M, Dols, V, Gérard, J.-C, Waite, Jr., J. H, Gladstone, G. R, Munhoven, G

“…Ultraviolet spectra using Hubble Space Telescope sampled between 1250 and 1680 Angstrom, at spectral resolution less than or equal to 0.57 Angstrom are…”
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A new class of absorption feature in Io's near-infrared spectrum by Trafton, L M, Lester, D F, Ramseyer, T F, Salama, F, Sandford, S A, Allamandola, L J

“…We report our discovery of an absorption feature in the infrared spectrum of Io centered at 2.1253 micrometers (4705.2 cm-1). This band is marginally resolved…”
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Multispectral observations of Jupiter's aurora by Waite, J.H, Grodent, D, Mauk, B.M, Majeed, T, Gladstone, G.R, Bolton, S.J, Clarke, J.T, Gérard, J.-C, Lewis, W.S, Trafton, L.M, Walker, R.J, Ingersoll, A.P, Connerney, J.E.P

“…Remote sensing of Jupiter's aurora from x-ray to radio wavelengths has revealed much about the nature of the jovian aurora and about the impact of…”
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H2 Quadrupole and H3+ Emission from Uranus: The Uranian Thermosphere, Ionosphere, and Aurora by Trafton, L. M, Miller, S, Geballe, T. R, Tennyson, J, Ballester, G. E

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Laboratory studies of the newly discovered infrared band at 4705.2 cm-1 (2.1253 micrometers) in the spectrum of Io: the tentative identification of CO2 by Sandford, S A, Salama, F, Allamandola, L J, Trafton, L M, Lester, D F, Ramseyer, T F

“…We discuss over 120 laboratory experiments pertaining to the identification of the new absorption band discovered by Trafton et al. (1991) at 4705.2 cm-1…”
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The Goddard High Resolution Spectrograph: Post‐COSTAR Characteristics by Robinson, R. D., Ake, T. B., Lindler, D. J., Heap, S. R., Carpenter, K. G., Leckrone, D. S., Maran, S. P., Smith, A. M., Brandt, J. C., Beaver, E. A., Boggess, A., Ebbets, D. C., Hutchings, J. B., Jura, M., Linsky, J. L., Savage, B. D., Trafton, L. M., Walter, F. M., Weymann, R. J.

“…We review changes to the characteristics of the Goddard High Resolution Spectrograph (GHRS) which resulted from the installation of the Corrective Optics Space…”
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Coupled DSMC-Monte Carlo radiative transfer modeling of gas dynamics in a transient impact-generated lunar atmosphere by Prem, P., Goldstein, D.B., Varghese, P.L., Trafton, L.M.

“…Volatile-rich impacts on nominally airless solar system bodies such as the Moon can give rise to collisional, transient atmospheres, traces of which may be…”
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The influence of surface roughness on volatile transport on the Moon by Prem, P., Goldstein, D.B., Varghese, P.L., Trafton, L.M.

“…•We model lunar surface temperature variations caused by “sub-pixel” roughness.•The surface temperature model is coupled to simulations of volatile…”
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