Signature of Saturn's auroral cusp : simultaneous Hubble Space Telescope FUV observations and upstream solar wind monitoring [PDF]
, 2005 Model simulations by Bunce et al. (2005a) have shown that direct precipitation of electrons in Saturn's dayside cusp regions is not capable of producing significant FUV aurora.
Cowley, Stanley W. H. +5 more
core +6 more sources
IMF dependence of the open-closed field line boundary in Saturn's ionosphere, and its relation to the UV auroral oval observed by the Hubble Space Telescope [PDF]
, 2007 We study the dependence of Saturn's magnetospheric magnetic field structure on the interplanetary magnetic field (IMF), together with the corresponding variations of the open-closed field line boundary in the ionosphere.
Badman, S. V. +6 more
core +5 more sources
Perspectives of Earth and Space Scientists, 2022 These are my personal recollections of my 50‐year involvement in planning NASA space projects, including the Voyager Missions, The Hubble Space Telescope, the International Space Station, the Space Shuttle, the Falcon Space X launcher, and the James Webb
Charles F. Kennel
doaj +1 more source
Constraint on the equation of state parameter (ω) in non-minimally coupled f(Q) gravity
Physics Letters B, 2021 We study observational constraints on the modified symmetric teleparallel gravity, the non-metricity f(Q) gravity, which reproduces background expansion of the universe.
Sanjay Mandal, P.K. Sahoo
doaj +1 more source
HST Low-resolution Stellar Library
The Astrophysical Journal Supplement Series, 2023 In order to provide fundamental stellar spectra that extend into the UV, Hubble Space Telescope’s Space Telescope Imaging Spectrograph targeted 556 stars via proposals GO9088, GO9786, GO10222, and GO13776.
Tathagata Pal +4 more
doaj +1 more source
Dependence of the open-closed field line boundary in Saturn's ionosphere on both the IMF and solar wind dynamic pressure : comparison with the UV auroral oval observed by the HST [PDF]
, 2008 We model the open magnetic field region in Saturn's southern polar ionosphere during two compression regions observed by the Cassini spacecraft upstream of Saturn in January 2004, and compare these with the auroral ovals observed simultaneously in ...
Badman, S. V. +4 more
core +4 more sources
What the Upper Atmospheres of Giant Planets Reveal
Remote Sensing, 2022 The upper atmospheres of the Giant Planets, Jupiter, Saturn, Uranus and Neptune are transition regions between meteorological layers and outer space. As a result of their exceptionally rarefied nature, they are highly sensitive and therefore revealing ...
James O’Donoghue, Tom Stallard
doaj +1 more source
Galaxies, 2020 We present the first results from comprehensive, near-UV-to-near-IR Hubble Space Telescope Wide Field Camera 3 (WFC3) emission-line imaging studies of two young planetary nebulae (PNe), NGC 7027 and NGC 6302.
Joel H. Kastner +5 more
doaj +1 more source
The First Weak-lensing Analysis with the James Webb Space Telescope: SMACS J0723.3–7327
The Astrophysical Journal, 2023 Utilizing the James Webb Space Telescope Early Release NIRCam Observations, we perform a weak-lensing analysis of the massive galaxy cluster SMACS J0723.3–7327 ( z = 0.39).
Kyle Finner +3 more
doaj +1 more source
Open flux estimates in Saturn's magnetosphere during the January 2004 Cassini-HST campaign, and implications for reconnection rates [PDF]
, 2005 During 8–30 January 2004, a sequence of 68 UV images of Saturn's southern aurora was obtained by the Hubble Space Telescope (HST), coordinated for the first time with measurements of the upstream interplanetary conditions made by the Cassini spacecraft ...
Badman, S. V. +6 more
core +6 more sources