Results 61 to 70 of about 16,947 (174)

The Stellar Populations and Rest-frame Colors of Star-forming Galaxies at z ≈ 8: Exploring the Impact of Filter Choice and Star Formation History Assumption with JADES

open access: yesThe Astrophysical Journal
Our understanding of the physical properties of star-forming galaxies during the Epoch of Reionization (EoR; at z  > 6) suffers from degeneracies among the apparent properties of the stars, nebular gas, and dust.
Jakob M. Helton   +32 more
doaj   +1 more source

JWST 1.5 μm and 4.8 μm Photometry of Y Dwarfs [PDF]

open access: yes
Brown dwarfs lack nuclear fusion and cool with time; the coldest known have an effective temperature below 500 K, and are known as Y dwarfs. We present a James Webb Space Telescope (JWST) photometric data set of Y dwarfs: 23 were imaged in wide-field ...
Vandal, Thomas   +33 more
core   +1 more source

Emission-line Diagnostics at z > 4: [O iii]λ4364/Hγ versus [Ne iii]λ3870/[O ii]λ3730 [PDF]

open access: yes
We use JWST Near-Infrared Spectrograph observations from the Cosmic Evolution Early Release survey, GLASS-JWST ERS (GLASS), and JWST Advanced Deep Extragalactic Survey to measure rest-frame optical emission-line ratios of 89 galaxies at z > 4.
Amorín, R.   +20 more
core   +1 more source

Desvendando o Endereço Físico do Telescópio James Webb

open access: yesRevista Brasileira de Ensino de Física
A localização espacial do futuro telescópio James Webb Satellite Telescope (JWST), em uma posição conhecida como L2 em relação ao sistema Sol-Terra, nos remete ao mais celebrado problema da dinâmica, que é o problema de três corpos.
Elaine Cristina Ferreira Silva Fortes   +2 more
doaj   +1 more source

JWST COMPASS: NIRSpec/G395H Transmission Observations of the Super-Earth TOI-836b

open access: yes
Data and models accompanying the publication "JWST COMPASS: NIRSpec/G395H Transmission Observations of the Super-Earth TOI-836b". Here we include: Data, ExoTiC-JEDI light curves and transmission spectrum of JWST NIRSpec/G395H transit observations Data ...
Lopez-Morales, Mercedes   +16 more
core   +1 more source

Differencing and Coadding JWST Images with Matched Point-spread Function

open access: yesThe Astronomical Journal
We present an algorithm to derive difference images for data taken with JWST with matched point-spread functions (PSFs). It is based on the saccadic fast Fourier transform method but with revisions to accommodate the rotations and spatial variations of ...
Lei Hu, Lifan Wang
doaj   +1 more source

JWST-Templates/Notebooks: first code release, paired with overview paper

open access: yes
<p>This is the first official release of the JWST cookbooks provided by the TEMPLATES team for use by the community in reducing various JWST data.
Brian Welch   +5 more
core   +1 more source

5-25 μm Galaxy Number Counts from Deep JWST Data [PDF]

open access: yes
Galaxy number counts probe the evolution of galaxies over cosmic time and serve as a valuable comparison point to theoretical models of galaxy formation.
Lyu, Jianwei   +7 more
core   +1 more source

The Transiting Exoplanet Community Early Release Science Program for JWST [PDF]

open access: yes, 2018
International audienceThe James Webb Space Telescope (JWST) presents the opportunity to transform our understanding of planets and the origins of life by revealing the atmospheric compositions, structures, and dynamics of transiting exoplanets in ...
Taylor, J.   +424 more
core   +3 more sources

NASA’s Pandora SmallSat Mission: Simulated Modeling and Retrieval of Near-infrared Exoplanet Transmission Spectra

open access: yesThe Astronomical Journal
Pandora is a SmallSat mission dedicated to understanding exoplanets and their host stars by disentangling the impact of stellar heterogeneity on exoplanet transmission spectra.
Yoav Rotman   +24 more
doaj   +1 more source

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