Results 11 to 20 of about 5,906 (233)
Maximum Entropy Estimates of Hubble Constant from Planck Measurements [PDF]
EntropyA maximum entropy (ME) methodology was used to infer the Hubble constant from the temperature anisotropies in cosmic microwave background (CMB) measurements, as measured by the Planck satellite.
David P. Knobles, Mark F. Westling
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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
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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
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COSMOS: Hubble Space Telescope Observations [PDF]
The Astrophysical Journal Supplement Series, 2007 21 pages, 6 figures -- to appear in COSMOS ApJ Suppl.
Scoville, N. +54 more
openaire +9 more sources
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
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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
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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
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The Hubble Space Telescope [PDF]
Analytical Chemistry, 1990 AbstractThe Hubble Space Telescope was launched from the Kennedy Space Center on April 24, 1990. Its initial check-out indicates that all sub-systems of the satellite are working very well, with two key exceptions: The line-of-sight pointing is subject to occasional jitter apparently induced by thermal stresses in the solar arrays; this is expected to ...
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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
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A Stable H2O Atmosphere on Europa’s Trailing Hemisphere From HST Images
Geophysical Research Letters, 2021 Previous studies of the global intensities of the oxygen emissions at 1,356 Å and 1,304 Å revealed molecular oxygen (O2) in Europa's atmosphere. Here we investigate the relative changes of the two oxygen emissions when Europa emerges from eclipse as well
Lorenz Roth
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