Results 61 to 70 of about 2,664,695 (259)

CLEAR: The Morphological Evolution of Galaxies in the Green Valley

The Astrophysical Journal, 2023
Quiescent galaxies having more compact morphologies than star-forming galaxies has been a consistent result in the field of galaxy evolution. What is not clear is at what point this divergence happens, i.e., when do quiescent galaxies become compact, and
Vicente Estrada-Carpenter, Casey Papovich, Ivelina Momcheva, Gabriel Brammer, Raymond C. Simons, Nikko J. Cleri, Mauro Giavalisco, Jasleen Matharu, Jonathan R. Trump, Benjamin Weiner, Zhiyuan Ji   +10 more
doaj   +1 more source

Cosmological evolution of galaxies [PDF]

, 2013
I review the subject of the cosmological evolution of galaxies, including different aspects of growth in disk galaxies, by focussing on the angular momentum problem, mergers, and their by-products. I discuss the alternative to merger-driven growth -- cold accretion and related issues.
openaire   +2 more sources

Kinematics of Cluster Galaxies and Their Relation to Galaxy Evolution [PDF]

The Astrophysical Journal, 2019
Abstract We study the kinematics of galaxies within massive clusters, as a probe of the physics of star formation quenching within clusters. Using N-body simulations, we argue that satellite kinematics provide information about galaxy infall that is complementary to the (instantaneous) spatial distribution of satellites and can help ...
Susmita Adhikari, Neal Dalal, Surhud More, Andrew Wetzel   +3 more
openaire   +4 more sources

STAGES:the Space Telescope A901/2 Galaxy Evolution Survey [PDF]

, 2008
We present an overview of the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). STAGES is a multiwavelength project designed to probe physical drivers of galaxy evolution across a wide range of environments and luminosity.
Bell, EF, Haeussler, Boris, Zheng, Xianzhong, Jahnke, Knud, Wisotzki, Lutz, Caldwell, JAR, Boehm, Asmus, Taylor, A, Bohm, Asmus, McIntosh, DH, Sanchez, Sebastian F., Gilmour, Rachel, Bacon, D, Peng, Chien Y., Barazza, Fabio D., Wisotzki, L, Jahnke, K, Caldwell, John A. R., Balogh, M, Heymans, Catherine, Barazza, FD, Kampen, EV, H��u��ler, Boris, Gray, ME, Boehm, A, Jogee, S, Meisenheimer, K, B��hm, Asmus, Sánchez, SF, Beswick, R. J., Barden, M, Heymans, C, van Kampen, E, Taylor, Andy, Bell, Eric F., Barden, Marco, Green, David A., Green, DA, Johnson, BD, Lane, Kyle, Gray, Meghan E., Balogh, Michael, Saikia, DJ, Mcintosh, Daniel H., Saikia, D. J., Peng, CY, Gilmour, R, Haussler, Boris, Guo, Yicheng, Wolf, C, Lane, K, Caldwell, John A R, Wolf, Christian, Johnson, Benjamin D., Bacon, David, Zheng, X, Jogee, Shardha, Papovich, C, Guo, Y, Van Kampen, Eelco, S��nchez, Sebastian F., Meisenheimer, Klaus, Papovich, Casey, Beswick, RJ, Haeussler, B   +64 more
core   +2 more sources

Effects of Dietary Mannan Oligosaccharides on Growth, Disease Resistance, and Gut Microbiota in Zebrafish

Animal Research and One Health, EarlyView.
Supplementation with mannan oligosaccharides (MOS) enhances growth, disease resistance, antioxidant capacity, and gut microbiota diversity while suppressing inflammation, apoptosis, and strengthening intestinal barrier integrity in zebrafish challenged with LPS or DSS.
Zhiyuan Lu, Longjiang Tang, Lei Deng, Ziheng Ren, Zhiyuan Gong   +4 more
wiley   +1 more source

Moving Groups in the Solar Neighborhood with Gaia, APOGEE, GALAH, and LAMOST: Dynamical Effects Gather Gas and the Ensuing Star Formation Plays an Important Role in Shaping the Stellar Velocity Distributions

The Astronomical Journal
With Gaia, APOGEE, GALAH, and LAMOST data, we investigate the positional, kinematic, chemical, and age properties of nine moving groups in the solar neighborhood.
Xilong Liang, Suk-Jin Yoon, Jingkun Zhao
doaj   +1 more source

Rapid Quenching of Galaxies at Cosmic Noon

The Astrophysical Journal, 2023
The existence of massive quiescent galaxies at high redshift seems to require rapid quenching, but it is unclear whether all quiescent galaxies have gone through this phase and what physical mechanisms are involved.
Minjung Park, Sirio Belli, Charlie Conroy, Sandro Tacchella, Joel Leja, Sam E. Cutler, Benjamin D. Johnson, Erica J. Nelson, Razieh Emami   +8 more
doaj   +1 more source

Galaxy-galaxy(-galaxy) lensing as a sensitive probe of galaxy evolution [PDF]

Astronomy & Astrophysics, 2012
11 pages, 8 figures, accepted in A& ...
Saghiha, H., Hilbert, S., Schneider, P., Simon, P.   +3 more
openaire   +3 more sources

Principal Component‐Based Classification of Blazar Candidates of Uncertain Type in the 4FGL/LAT

Astronomische Nachrichten, EarlyView.
ABSTRACT We adopted principal component analysis (PCA), linear discriminant analysis (LDA), and support vector machines (SVM), to study classification for a sample of 2708 Fermi blazars: 1142 BL Lac objects (BLLs), 759 flat spectrum radio quasars (FSRQs), and 807 blazar candidates of uncertain type (BCUs).
Wen‐Xin Yang, Guo‐Hai Chen, Jing‐Tian Zhu, Hong‐Guang Wang, Denis Bastieri, Xu‐Hong Ye, Jing‐Chao Liang, De‐Xiang Wu, Jiang‐He Yang, Anton A. Strigachev, Rumen S. Bachev, Jun‐Jie Feng, Yi Liu, Jun‐Hui Fan   +13 more
wiley   +1 more source

Integral-Field Spectroscopy of High-Redshift Galaxies: Implications for Early Galaxy Evolution [PDF]

, 2006
Several lines of evidence suggest that the most active phase of galaxy evolution, especially in the most massive systems, was largely completed by $z\sim 1$.
Nesvadba, Nicole
core   +1 more source