Results 81 to 90 of about 1,397 (185)
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
The Planetary Science JournalWe present observations obtained with the Near Infrared Spectrograph on JWST of the five Jupiter Trojans that will be visited by the Lucy spacecraft—the Patroclus–Menoetius binary, Eurybates, Orus, Leucus, and Polymele.
Ian Wong +8 more
doaj +1 more source
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
JWST/MIRI Study of the Enigmatic Mid-infrared Rings in the Planetary Nebula NGC 1514
The Astronomical JournalWhile NGC 1514 is an elliptical, but complex, planetary nebula at optical wavelengths, it was discovered to have a pair of infrared-bright, axisymmetric rings contained within its faint outer shell during the course of the Wide-field Infrared Survey ...
Michael E. Ressler +5 more
doaj +1 more source
Modeling Tails of Escaping Gas in Exoplanet Atmospheres with Harmonica
The Astrophysical Journal LettersExoplanets that reside close to their host stars, and therefore receive substantial amounts of X-ray and ultraviolet radiation, are prone to suffer from strong atmospheric escape.
Carlos Gascón +7 more
doaj +1 more source
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
doaj +1 more source
The Astrophysical JournalRecent observations have confirmed circumplanetary disks (CPDs) embedded in parental protoplanetary disks (PPDs). On the other hand, planetary-mass companions and planetary-mass objects (PMOs) are likely to harbor their own accretion disks.
Xilei Sun +3 more
doaj +1 more source
James Webb Space Telescope optical telescope element mirror coatings [PDF]
SPIE Proceedings, 2012 Ritva A. Keski-Kuha +6 more
openaire +1 more source