Results 131 to 140 of about 108,043 (278)

CAPERS Observations of Two UV-bright Galaxies at z > 10. More Evidence for Bursting Star Formation in the Early Universe

open access: yesThe Astrophysical Journal Letters
We present the first results from the CANDELS-Area Prism Epoch of Reionization Survey (CAPERS), utilizing PRISM observations with the JWST/NIRSpec microshutter assembly in the PRIMER-UDS field.
Vasily Kokorev   +40 more
doaj   +1 more source

Escape of about five per cent of Lyman-α photons from high-redshift star-forming galaxies [PDF]

open access: green, 2010
Matthew Hayes   +9 more
openalex   +1 more source

The Impact of Star Formation and Feedback Recipes on the Stellar Mass and Interstellar Medium of High-Redshift Galaxies

open access: yesThe Open Journal of Astrophysics
We introduce MEGATRON, a new galaxy formation model for cosmological radiation hydrodynamics simulations of high-redshift galaxies. The model accounts for the non-equilibrium chemistry and heating/cooling processes of $\geq 80$ atoms, ions, and molecules,
Harley Katz   +4 more
doaj   +1 more source

On the Very Bright Dropouts Selected Using the James Webb Space Telescope NIRCam Instrument

open access: yesThe Astrophysical Journal
The selection of candidate high-redshift galaxies using the dropout technique targeting the Lyman-break signature sometimes yields very bright objects that are too luminous to be easily explained if they are indeed at the expected redshifts.
Bangzheng Sun, Haojing Yan
doaj   +1 more source

STRUCTURES OF LOCAL GALAXIES COMPARED TO HIGH-REDSHIFT STAR-FORMING GALAXIES [PDF]

open access: bronze, 2009
Sara Petty   +6 more
openalex   +1 more source

Evolution of High Redshift Galaxies

open access: yesThe Astrophysical Journal, 1981
Luminosity evolution and q/sub 0/ have been studied using infrared photometry of giant ellipitcal galaxies. Lack of evolution in infrared colors has been confirmed and a value of -0.05 +- 10.30 for q/sub 0/ has been derived from the K-magnitude Hubble diagram.
openaire   +1 more source

Metallicity Gradients in Modern Cosmological Simulations. I. Tension between Smooth Stellar Feedback Models and Observations

open access: yesThe Astrophysical Journal
The metallicity of galaxies, and its variation with galactocentric radius, provides key insights into the formation histories of galaxies and the physical processes driving their evolution.
Alex M. Garcia   +16 more
doaj   +1 more source

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