Results 21 to 30 of about 108,043 (278)
The Astrophysical Journal, 2023 We present images and a multiwavelength photometric catalog based on all of the JWST NIRCam observations obtained to date in the region of the Abell 2744 galaxy cluster.
Diego Paris +29 more
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Simulating JWST/NIRCam Color Selection of High-redshift Galaxies [PDF]
Astrophysical Journal, 2020 The Near Infrared Camera (NIRCam) instrument on the upcoming James Webb Space Telescope will offer an unprecedented view of the most distant galaxies.
K. Hainline +14 more
semanticscholar +1 more source
High Redshift Radio Galaxies [PDF]
Symposium - International Astronomical Union, 1996 One hundred years after G. Marconi recorded radio waves over a distance of more than 1000 m, the most sensitive radio telescopes are able to detect the radio emission from light travel distances at least 1.4 × 1023 times greater. The electromagnetic waves from these distant objects are red shifted by Δλ/λ = z > 4. It is not the mere distance of high
K. Meisenheimer, H. Hippelein, M. Neeser
openaire +3 more sources
Galaxy formation at high redshifts [PDF]
Nature, 1996 Sensitive optical surveys have revealed a large population of `faint blue galaxies' which are believed to be young galaxies, observed close to their time of formation. But there has been considerable uncertainty regarding the epochs at which these galaxies are observed, owing to the difficulties inherent in determining spectroscopic redshifts for very ...
Metcalfe, N. +4 more
openaire +2 more sources
Dust in High‐Redshift Galaxies [PDF]
The Astrophysical Journal, 1997 Measurements of Zn and Cr abundances in damped Lyman alpha systems at absorption redshifts between 0.692 and 3.390 show that metals and dust are much less abundant in high redshift galaxies than in the Milky Way today. We conclude that the overall degree of metal enrichment of DLA galaxies approximately 13.5 Gyr ago is 1/15 solar.
Pettini, Max +3 more
openaire +2 more sources
The Astrophysical Journal, 2023 We investigate the resolved kinematics of the molecular gas, as traced by the Atacama Large Millimeter/submillimeter Array in CO (2−1), of 25 cluster member galaxies across three different clusters at a redshift of z ∼ 1.6.
W. J. Cramer +16 more
doaj +1 more source
On the dust temperatures of high-redshift galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Dust temperature is an important property of the interstellar medium (ISM) of galaxies. It is required when converting (sub)millimetre broad-band flux to total infrared luminosity (LIR), and hence star formation rate, in high-redshift galaxies. However,
Lichen Liang +9 more
semanticscholar +1 more source
“Direct” Gas-phase Metallicity in Local Analogs of High-redshift Galaxies: Empirical Metallicity Calibrations for High-redshift Star-forming Galaxies [PDF]
Astrophysical Journal, 2018 We study the direct gas-phase oxygen abundance using the well-detected auroral line [O iii]λ4363 in the stacked spectra of a sample of local analogs of high-redshift galaxies.
F. Bian, L. Kewley, M. Dopita
semanticscholar +1 more source
The HDUV Survey: A Revised Assessment of the Relationship between UV Slope and Dust Attenuation for High-redshift Galaxies [PDF]
, 2017 We use a newly assembled sample of 3545 star-forming galaxies with secure spectroscopic, grism, and photometric redshifts at z = 1.5–2.5 to constrain the relationship between UV slope (β) and dust attenuation (LIR/LUV ≡ IRX).
N. Reddy +15 more
semanticscholar +1 more source
Large Disklike Galaxies at High Redshift [PDF]
The Astrophysical Journal, 2003 LaTeX, 5 pages, 2 figures, 1 table.
Labbé, Ivo +13 more
openaire +5 more sources