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Browsing by Author "Gladstone, G. R."

Browsing by Author "Gladstone, G. R."

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  • Chandra Observations of Jupiter's X-ray Auroral Emission During Juno Apojove 2017 
    Weigt, D. M.; Jackman, C. M.; Dunn, William R.; Gladstone, G. R.; Vogt, M. F.; Wibisono, A. D.; Branduardi-Raymont, G.; Altamirano, D.; Allegrini, F.; Ebert, R. W.; Valek, P. W.; Thomsen, M. F.; Clark, G.; Kraft, Ralph P. (2020)
    Jupiter's auroral X-rays have been observed for 40 years with an unknown driver producing quasiperiodic emission, concentrated into auroral hot spots. In this study we analyze an ~ 10-hr Chandra observation from 18:56 ...
  • The geology and geophysics of Kuiper Belt object (486958) Arrokoth 
    Spencer, J. R.; Stern, S. A.; Moore, J. M.; Weaver, H. A.; Singer, K. N.; Olkin, C. B.; Verbiscer, A. J.; McKinnon, W. B.; Parker, J. Wm; Beyer, R. A.; Keane, J. T.; Lauer, T. R.; Porter, S. B.; White, O. L.; Buratti, B. J.; El-Maarry, M. R.; Lisse, C. M.; Parker, A. H.; Throop, H. B.; Robbins, S. J.; Umurhan, O. M.; Binzel, R. P.; Britt, D. T.; Buie, M. W.; Cheng, A. F.; Cruikshank, D. P.; Elliott, H. A.; Gladstone, G. R.; Grundy, W. M.; Hill, M. E.; Horanyi, M.; Jennings, D. E.; Kavelaars, J. J.; Linscott, I. R.; McComas, D. J.; McNutt, R. L.; Protopapa, S.; Reuter, D. C.; Schenk, P. M.; Showalter, M. R.; Young, L. A.; Zangari, A. M.; Abedin, A. Y.; Beddingfield, C. B.; Benecchi, S. D.; Bernardoni, E.; Bierson, C. J.; Borncamp, D.; Bray, V. J.; Chaikin, A. L.; Dhingra, R. D.; Fuentes, C.; Fuse, T.; Gay, P. L.; Gwyn, S. D. J.; Hamilton, D. P.; Hofgartner, J. D.; Holman, Matthew J.; Howard, A. D.; Howett, C. J. A.; Karoji, H.; Kaufmann, D. E.; Kinczyk, M.; May, B. H.; Mountain, M.; Pätzold, M.; Petit, J. M.; Piquette, M. R.; Reid, I. N.; Reitsema, H. J.; Runyon, K. D.; Sheppard, S. S.; Stansberry, J. A.; Stryk, T.; Tanga, P.; Tholen, D. J.; Trilling, D. E.; Wasserman, L. H. (2020)
    The Cold Classical Kuiper Belt, a class of small bodies in undisturbed orbits beyond Neptune, is composed of primitive objects preserving information about Solar System formation. In January 2019, the New Horizons spacecraft ...
  • The independent pulsations of Jupiter's northern and southern X-ray auroras 
    Dunn, W. R.; Branduardi-Raymont, G.; Ray, L. C.; Jackman, C. M.; Kraft, R. P.; Elsner, R. F.; Rae, I. J.; Yao, Z.; Vogt, M. F.; Jones, G. H.; Gladstone, G. R.; Orton, G. S.; Sinclair, J. A.; Ford, P. G.; Graham, G. A.; Caro-Carretero, R.; Coates, A. J. (2017)
    Auroral hot spots are observed across the Universe at different scales<SUP>1</SUP> and mark the coupling between a surrounding plasma environment and an atmosphere. Within our own Solar System, Jupiter possesses the only ...
  • Jupiter&#39;s X-Ray and UV Dark Polar Region 
    Dunn, W. R.; Weigt, D. M.; Grodent, D.; Yao, Z. H.; May, D.; Feigelman, K.; Sipos, B.; Fleming, D.; McEntee, S.; Bonfond, B.; Gladstone, G. R.; Johnson, R. E.; Jackman, C. M.; Guo, R. L.; Branduardi-Raymont, G.; Wibisono, A. D.; Kraft, Ralph P.; Nichols, J. D.; Ray, L. C. (2022)
    We present 14 simultaneous Chandra X-ray Observatory (CXO)-Hubble Space Telescope (HST) observations of Jupiter&#39;s Northern X-ray and ultraviolet (UV) aurorae from 2016 to 2019. Despite the variety of dynamic UV and ...
  • A major ice component in Pluto&#39;s haze 
    Lavvas, P.; Lellouch, E.; Strobel, D. F.; Gurwell, Mark A.; Cheng, A. F.; Young, L. A.; Gladstone, G. R. (2021)
    Pluto, Titan and Triton all have low-temperature environments with an N<SUB>2</SUB>, CH<SUB>4</SUB> and CO atmospheric composition in which solar radiation drives an intense organic photochemistry. Titan is rich in atmospheric ...
  • Morphology of Jupiter&#39;s Polar Auroral Bright Spot Emissions via Juno UVS Observations 
    Haewsantati, K.; Bonfond, B.; Wannawichian, S.; Gladstone, G. R.; Hue, V.; Versteeg, M. H.; Greathouse, T. K.; Grodent, D.; Yao, Z.; Dunn, William; Gérard, J. -C; Giles, R.; Kammer, J.; Guo, R.; Vogt, M. F. (2021)
    Since 2016, the Juno UVS (Ultraviolet Spectrograph) instrument has been taking spectral images of Jupiter&#39;s auroras in their full extent, including the nightside, which cannot be viewed from Earth. We present a systematic ...
  • The Pluto System: Initial Results from Its Exploration by New Horizons 
    Stern, S. A.; Bagenal, F.; Ennico, K.; Gladstone, G. R.; Grundy, W. M.; McKinnon, W. B.; Moore, J. M.; Olkin, C. B.; Spencer, J. R.; Weaver, H. A.; Young, L. A. (2015)
  • The puzzling detection of x-rays from Pluto by Chandra 
    Lisse, C. M.; McNutt, R. L.; Wolk, S. J.; Bagenal, F.; Stern, S. A.; Gladstone, G. R.; Cravens, T. E.; Hill, M. E.; Kollmann, P.; Weaver, H. A.; Strobel, D. F.; Elliott, H. A.; McComas, D. J.; Binzel, R. P.; Snios, B. T.; Bhardwaj, A.; Chutjian, A.; Young, L. A.; Olkin, C. B.; Ennico, K. A. (2017)
    Using Chandra ACIS-S, we have obtained low-resolution imaging X-ray spectrophotometry of the Pluto system in support of the New Horizons flyby on 14 July 2015. Observations were obtained in a trial ;seed; campaign conducted ...

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