Results 71 to 80 of about 103,015 (280)
, 1998 To appear in "Large Scale Structure: Tracks and Traces", Proceedings of the 12th Potsdam Cosmology Workshop, eds. V. M"uller, S. Gottl"ober, J. P. M"ucket, J. Wambsganss, (Singapore: World Scientific), 1998. 9 LaTeX pages, including 5 figures.
Yahil, A. +2 more
openaire +2 more sources
High-redshift galaxy populations and their descendants [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 16 pages, 17 figures, submitted to ...
Qi Guo, Simon D. M. White
openaire +4 more sources
The Astrophysical JournalRecent findings from photometric and spectroscopic JWST surveys have identified examples of high-redshift galaxies at z ≳ 10. These high- z galaxies appear to form much earlier and exhibit greater UV luminosity than predicted by theoretical work.
Tae Bong Jeong +3 more
doaj +1 more source
Why do high-redshift galaxies show diverse gas-phase metallicity gradients? [PDF]
, 2016 Recent spatially resolved observations of galaxies at z ∼ 0.6–3 reveal that high-redshift galaxies show complex kinematics and a broad distribution of gas-phase metallicity gradients.
Xiangcheng Ma +10 more
semanticscholar +1 more source
Two Micron‐Size Dark Dimensions
Fortschritte der Physik, Volume 73, Issue 8, August 2025.Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui +2 more
wiley +1 more source
High Redshift Radio Galaxies with the VLT [PDF]
, 1994 The study of high-$z$ radio galaxies (HZRGs) has matured considerably during the last decade. Large numbers of $z>2$ radio galaxies have been found and have been studied in considerable detail. In this review we will address the importance of the VLT for studies of samples of distant radio galaxies.
George H. Miley, Huub Rottgering
openaire +3 more sources
The Extinction Law in High‐Redshift Galaxies [PDF]
The Astrophysical Journal, 2004 We estimate the dust extinction laws in two intermediate redshift galaxies. The dust in the lens galaxy of LBQS1009-0252, which has an estimated lens redshift of zl~0.88, appears to be similar to that of the SMC with no significant feature at 2175 A.
Christopher S. Kochanek +4 more
openaire +3 more sources
Nihao XIII: Clumpy discs or clumpy light in high-redshift galaxies? [PDF]
, 2016 Many massive star forming disc galaxies in the redshift range 3 to 0.5 are observed to have a clumpy morphology showing giant clumps of size $\sim$1 kpc and masses of about $10^{7}M_{\odot}$ to $10^{10} M_{\odot}$.
T. Buck +8 more
semanticscholar +1 more source
Astronomische Nachrichten, Volume 346, Issue 5, June 2025.ABSTRACT Classification of galaxies, stars, and quasars using spectral data is fundamental to astronomy, but often relies heavily on redshift. This study evaluates the performance of 10 machine learning algorithms on SDSS data to classify these objects, with a particular focus on scenarios where redshift information is unavailable.
Debashis Chatterjee, Prithwish Ghosh
wiley +1 more source
An Empirical Consistent Redshift Bias: A Possible Direct Observation of Zwicky’s TL Theory
ParticlesRecent advancements have shown tensions between observations and our current understanding of the Universe. Such observations may include the H0 tension and massive galaxies at high redshift that are older than traditional galaxy formation models have ...
Lior Shamir
doaj +1 more source