Results 151 to 160 of about 103,015 (280)

Lack of Evolution in the Iron Abundance in Clusters of Galaxies and Implications for the Global Star Formation Rate at High Redshift [PDF]

, 1997
R. F. Mushotzky, M. Loewenstein
openalex   +1 more source

Contribution of AGN to the Morphological Parameters of Their Host Galaxies up to Intermediate Redshifts of z ∼ 2

Galaxies
The presence of Active Galaxy Nuclei (AGN) can affect the morphological classification of galaxies. This work aims to determine how the contribution of AGN affects the most-used morphological parameters down to the redshift of z ∼ 2 in COSMOS-like ...
Tilahun Getachew-Woreta, Mirjana Pović, Jaime Perea, Isabel Marquez, Josefa Masegosa, Antoine Mahoro, Shimeles Terefe Mengistue   +6 more
doaj   +1 more source

Identification of a galaxy responsible for a high-redshift Lyman-α absorption system [PDF]

, 1996
S. G. Djorgovski, M. A. Pahre, Jill Bechtold, R. Elston   +3 more
openalex   +1 more source

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

The 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, Paul Torrey, Aniket Bhagwat, Ruby J. Wright, Qian-Hui Chen, Kathryn Grasha, Sophia Ridolfo, Z. S. Hemler, Arnab Sarkar, Priyanka Chakraborty, Erica J. Nelson, Ryan L. Sanders, Tiago Costa, Mark Vogelsberger, Lisa J. Kewley, Sara L. Ellison, Lars Hernquist   +16 more
doaj   +1 more source

High-redshift objects near the companion galaxies to NGC 2859

, 1980
Halton Arp
openalex   +1 more source

Photometric Redshifts and High‐Redshift Galaxies [PDF]

, 1999
Lisa J. Storrie‐Lombardi
openalex   +1 more source

MG II absorption in the spectra of 103 QSOs - Implications for the evolution of gas in high-redshift galaxies

, 1992
Charles C. Steidel, W. L. W. Sargent
openalex   +1 more source

New High-Redshift Radio Galaxies from the MIT–Green Bank Catalog [PDF]

, 1999
Daniel Stern, Arjun Dey, Hyron Spinrad, L. Maxfield, Mark Dickinson, David J. Schlegel, R. A. González   +6 more
openalex   +1 more source

The Distribution of High‐Redshift Galaxy Colors: Line‐of‐Sight Variations in Neutral Hydrogen Absorption [PDF]

, 1999
Matthew A. Bershady, Jane C. Charlton, Janet M. Geoffroy   +2 more
openalex   +1 more source

Halo mass functions at high redshift

The Open Journal of Astrophysics
Recent JWST observations of very early galaxies, at $z \geq 10$, has led to claims that tension exists between the sizes and luminosities of high-redshift galaxies and what is predicted by standard ${\Lambda}$CMD models.
Hannah O'Brennan, John A. Regan, Chris Power, Saoirse Ward, John Brennan, Joe McCaffrey   +5 more
doaj   +1 more source