Results 121 to 130 of about 14,841,931 (226)

ALESS-JWST: Joint (Sub)kiloparsec JWST and ALMA Imaging of z ~ 3 Submillimeter Galaxies Reveals Heavily Obscured Bulge Formation Events

open access: yesThe Astrophysical Journal
We present JWST NIRCam imaging targeting 13 z  ~ 3 infrared-luminous ( L _IR  ∼ 5 × 10 ^12 L _⊙ ) galaxies from the ALESS survey with uniquely deep, high-resolution (0 $\mathop{.}\limits^{\unicode{x02033}}$ 08–0 $\mathop{.}\limits^{^{\prime\prime} }$ 16)
J. A. Hodge   +27 more
doaj   +1 more source

Testing the Standard Cosmological Model [PDF]

open access: yes, 2011
This thesis exploits the wealth of information contained in the existing cosmological surveys, and demonstrates how the use of tools such as two-point statistics permit the extraction of such information.
SAWANGWIT, UTANE
core  

Cosmic Magnification of High-Redshift Submillimeter Galaxies

open access: yesGalaxies
Weak lensing magnification probes the correlation between galaxies and the underlying matter field in a similar fashion to galaxy–galaxy lensing shear. Although it has long been sidelined in favor of the latter on the grounds of poorer performance in terms of statistical significance, the provision of a large sample of high-redshift submillimeter ...
Marcos M. Cueli   +3 more
openaire   +3 more sources

Evidence for a population of high-redshift submillimeter galaxies from interferometric imaging [PDF]

open access: yes, 2007
We have used the Submillimeter Array to image a flux-limited sample of seven submillimeter galaxies, selected by the AzTEC camera on the JCMTat 1.1 mm, in the COSMOS field at 890 µm with ~2″ resolution. All of the sources— two radio-bright and five radio-
David Hughes, ITZIAR ARETXAGA MENDEZ
core  

In Pursuit of High Redshift Galaxies

open access: yes, 2016
Some contributions in Chap. 1 have highlighted the impact of the discovery in the 1960s of a handful of radio galaxies and Quasars in the redshift range z ∼ 0.2–0.4. About 40 years later, at the end of the twentieth Century, the systematic exploration of
Poggianti, Bianca   +24 more
core   +1 more source

BEACON: JWST NIRCam Pure-parallel Imaging Survey. I. Survey Design and Initial Results

open access: yesThe Astrophysical Journal
We introduce the Bias-free Extragalactic Analysis for Cosmic Origins with NIRCam (BEACON) survey, a JWST Cycle 2 program allocated up to 600 pure-parallel hours of observations.
Takahiro Morishita   +34 more
doaj   +1 more source

JWST NIRSpec Spectroscopy of the Remarkable Bright Galaxy GHZ2/GLASS-z12 at Redshift 12.34

open access: yesThe Astrophysical Journal
We spectroscopically confirm the M _UV = −20.5 mag galaxy GHZ2/GLASS-z12 to be at redshift z = 12.34. The source was selected via NIRCam photometry in GLASS-JWST Early Release Science data, providing the first evidence of a surprising abundance of bright
Marco Castellano   +30 more
doaj   +1 more source

PRUSSIC

open access: yesAstronomy & Astrophysics
Characterising the relationship between dense gas and star formation is critical for understanding the assembly of galaxies throughout cosmic history. However, due to the faintness of standard dense-gas tracers – HCN, HCO+, and HNC – dense gas in high ...
Rybak M.   +9 more
doaj   +1 more source

Galáxias post-starburst no universo local [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2014Galáxias post-starburst (PSB) apresentam espectros com fortes linhas de absorção na série ...
Werle, Ariel
core  

CHILES. VIII. Probing the Evolution of Average H I Content in Star-forming Galaxies over the Past 5 Gyr

open access: yesThe Astrophysical Journal
Utilizing the COSMOS H I Large Extragalactic Survey (CHILES) data set, we investigate the evolution of the average atomic neutral hydrogen (H I ) properties of galaxies over the continuous redshift range 0.09 
Nicholas Luber   +11 more
doaj   +1 more source

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