Results 21 to 30 of about 5,906 (233)
PHANGS–JWST First Results: A Combined HST and JWST Analysis of the Nuclear Star Cluster in NGC 628
The Astrophysical Journal Letters, 2023 We combine archival Hubble Space Telescope and new James Webb Space Telescope imaging data covering the ultraviolet to mid-infrared regime to morphologically analyze the nuclear star cluster (NSC) of NGC 628, a grand-design spiral galaxy.
Nils Hoyer +30 more
doaj +1 more source
Jovian Magnetospheric Injections Observed by the Hubble Space Telescope and Juno
Geophysical Research Letters, 2023 We compare Hubble Space Telescope observations of Jupiter's FUV auroras with contemporaneous conjugate Juno in situ observations in the equatorial middle magnetosphere of Jupiter.
J. D. Nichols +15 more
doaj +1 more source
PACMan2: Next Steps in Proposal Review Management
The Astronomical Journal, 2023 With the start of a new Great Observatories era, there is renewed concern that the demand for these forefront facilities, through proposal pressure, will exceed conventional peer-review management’s capacity for ensuring an unbiased and efficient ...
Louis-Gregory Strolger +7 more
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Hubble Space TelescopeScience Metrics [PDF]
Publications of the Astronomical Society of the Pacific, 2004 Since its launch in April 1990, the Hubble Space Telescope (HST) has produced an increasing flow of scientific results. The large number of refereed publications based on HST data allows a detailed evaluation of the effectiveness of this observatory and of its scientific programs.
Meylan, Georges +2 more
openaire +2 more sources
MEASURING THE HUBBLE CONSTANT WITH THE HUBBLE SPACE TELESCOPE [PDF]
Proceedings of the International Astronomical Union, 1995 AbstractTen years ago our team completed the Hubble Space Telescope Key Project on the extragalactic distance scale. Cepheids were detected in some 25 galaxies and used to calibrate four secondary distance indicators that reach out into the expansion field beyond the noise of galaxy peculiar velocities.
Freedman, W., Kennicutt, R., Mould, J.
openaire +3 more sources
A 1.3% Distance to M33 from Hubble Space Telescope Cepheid Photometry
The Astrophysical Journal, 2023 We present a low-dispersion period–luminosity relation (PL) based on 154 Cepheids in Messier 33 (M33) with Hubble Space Telescope (HST) photometry from the PHATTER survey.
Louise Breuval +9 more
doaj +1 more source
Attitude Control and Parameter Optimization: A Study on Hubble Space Telescope
Measurement Science Review, 2023 In this work, we build a satellite attitude Proportional-Integral-Derivative (PID) controlled system by using the Hubble Space Telescope (HST) parameters as a reference and tune its controller parameters using various tuning methods.
Sayin Emre +2 more
doaj +1 more source
SensorsOn-orbit assembling space telescope (OAST) is one of the most feasible methods to implement a large-scale space telescope. Unlike a monolithic space telescope (such as Hubble Space Telescope, HST) or a deployable space telescope (such as James Webb Space
Ye Kuang +4 more
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The High-energy Spectrum of the Young Planet Host V1298 Tau
The Astronomical Journal, 2023 V1298 Tau is a young pre-main-sequence star hosting four known exoplanets that are prime targets for transmission spectroscopy with current-generation instruments. This work pieces together observations from the NICER X-ray telescope, the Space Telescope
Girish M. Duvvuri +6 more
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Proper Motions of Jets on the Kiloparsec Scale: New Results with HST
Galaxies, 2017 The Hubble Space Telescope recently celebrated 25 years of operation. Some of the first images of extragalactic optical jets were taken by HST in the mid-1990s; with time baselines on the order of 20 years and state-of-the-art astrometry techniques, we ...
Eileen T. Meyer +9 more
doaj +1 more source