Results 111 to 120 of about 24,980 (214)
The Astrophysical Journal Supplement SeriesIn the era of the James Webb Space Telescope (JWST), with its unprecedented sensitivity and spectral resolution, infrared spectral surveys have revealed a rich inventory of ices, including complex organic molecules (COMs), in young stellar objects ...
Prathap Rayalacheruvu +9 more
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Overview of the JWST Program [PDF]
, 2012 The James Webb Space Telescope (JWST) is a large aperture (6.5 meter), cryogenic space telescope with a suite of near and mid-infrared instruments covering the wavelength range of 0.6 micron to 28 micron.
Clampin, M.
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The Astrophysical JournalInferring the properties of transiting exoplanet atmospheres relies on comparing models to spectroscopic observations. Atmosphere models, however, make a range of assumptions, from one-dimensional (1D, varying with altitude) radiative-convective ...
Lindsey S. Wiser +3 more
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CORINOS. IV. Quantifying Baseline-fitting Uncertainties in SO2 Ice Measurements with JWST/MIRI
The Astrophysical JournalSulfur dioxide (SO _2 ) ice has been tentatively detected in protostellar envelopes, but its reliability as a solid-state sulfur reservoir remains unclear.
Rachel E. Gross +17 more
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Testing the James Webb Space Telescope Primary Mirror [PDF]
JWST in-process optical testing and cryogenic requirement compliance certification, verification andvalidation was probably the most difficult metrology job of our generation in astronomical optics.
Stahl, H. Philip
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New Insight from the James Webb Space Telescope on Variable Active Galactic Nuclei
The Astrophysical JournalVariability detected in galaxies is usually attributed to their active galactic nuclei (AGNs). While all AGNs are intrinsically variable, the AGN unification model predicts that Type 2 AGNs rarely vary because their engines are blocked by dust tori ...
Bangzheng Sun +3 more
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An Extremely Low-density Exoplanet Spins Slow
The Astrophysical Journal LettersWe present constraints on the shape of Kepler-51d, which is a superpuff with a mass ∼6 M _⊕ and a radius ∼9 R _⊕ , based on detailed modeling of the transit light curve from James Webb Space Telescope (JWST) NIRSpec. The projected shape of this extremely
Quanyi Liu +5 more
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The James Webb Space Telescope: Mission Overview and Status [PDF]
The James Webb Space Telescope (JWST) is the scientific successor to the Hubble Space Telescope. It is a cryogenic infrared space observatory with a 25 m2 aperture (6 m class) telescope that will achieve diffraction limited angular resolution at a ...
Greenhouse, Matthew
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The Planetary Science JournalWe present 0.8–5 μ m JWST spectra of four ~20 km diameter Jupiter Trojans known to have albedos elevated above the values typical in the remaining Trojan population.
Michael E. Brown +2 more
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James Webb Space Telescope segment phasing using differential optical transfer functions. [PDF]
J Astron Telesc Instrum Syst, 2015 Codona JL, Doble N.
europepmc +1 more source