Results 71 to 80 of about 102,173 (261)

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

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, P. Hopkins, R. Feldmann, P. Torrey, C. Faucher-Giguére, Dusan Keres Caltech, U. Zurich, Berkeley, Mit, Northwestern, Ucsd   +10 more
semanticscholar   +1 more source

An Empirical Consistent Redshift Bias: A Possible Direct Observation of Zwicky’s TL Theory

Particles
Recent 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

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

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, A. Macciò, A. Obreja, A. Dutton, R. Dom'inguez-Tenreiro, Gian Luigi Granato Mpia, Nyuad, U. A. D. Madrid, O. A. Trieste   +8 more
semanticscholar   +1 more source

First Light: exploring the Spectra of High-Redshift Galaxies in the Renaissance Simulations [PDF]

, 2017
We present synthetic observations for the first generations of galaxies in the Universe and make predictions for future deep field observations for redshifts greater than 6.
Kirk S. S. Barrow, J. Wise, M. Norman, B. O’Shea, Haoting Xu   +4 more
semanticscholar   +1 more source

First Detection of CO Isotopologues in a High-redshift Main-sequence Galaxy: Evidence of a Top-heavy Stellar Initial Mass Function

The Astrophysical Journal
Recent observations and theories have presented a strong challenge to the universality of the stellar initial mass function (IMF) in extreme environments. A notable example has been found for starburst conditions, where evidence favors a top-heavy IMF, i.
Ziyi Guo, Zhi-Yu Zhang, Zhiqiang Yan, Eda Gjergo, Allison W. S. Man, R. J. Ivison, Xiaoting Fu, Yong Shi   +7 more
doaj   +1 more source

ON THE [C ii]–SFR RELATION IN HIGH REDSHIFT GALAXIES [PDF]

, 2015
After two Atacama Large Millimeter/submillimeter Array (ALMA) observing cycles, only a handful of [C ii] 158 μm emission line searches in z > 6 galaxies have reported a positive detection, questioning the applicability of the local [C ii]–star formation ...
L. Vallini, S. Gallerani, A. Ferrara, A. Pallottini, B. Yue   +4 more
semanticscholar   +1 more source

An Obscured Radio Galaxy at High Redshift

The Astrophysical Journal, 2003
13 Pages LaTeX, including 3 Postscript ...
Daniel Stern, Wim de Vries, Wil van Breugel, Carlos De Breuck, Huub Röttgering, Michiel Reuland, Michiel Reuland   +6 more
openaire   +3 more sources

Galaxy halo occupation at high redshift [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
13 pages, 5 figures, Submitted to MNRAS, minor ...
Risa H. Wechsler, Rachel S. Somerville, James S. Bullock   +2 more
openaire   +4 more sources