Results 111 to 120 of about 18,580 (285)

Quantifying Bursty Star Formation in Dwarf Galaxies

The Open Journal of Astrophysics
Dwarf galaxy star formation histories are theoretically expected to be bursty, potentially leaving distinct imprints on their chemical evolution. We propose that episodic starbursts with quiescent periods longer than ~100 Myr should lead to discontinuous
Yuan-Sen Ting, Alexander Ji
doaj   +1 more source

Effect of Salinity Stress on Gut–Brain–Gonad Axis in the Red‐Eared Slider (Trachemys scripta elegans)

Integrative Zoology, EarlyView.
The increase in salinity leads to changes in the gut microbiota and metabolites of Trachemys scripta elegans, affecting the synthesis and secretion of neurotransmitters or precursors, which can inhibit the secretion of reproductive hormones and affect the self‐renewal and differentiation process of spermatogonial stem cells.
Qiongyu Zhang, Na Li, Xue Tang, Hanru Chen, Meiling Hong, Li Ding   +5 more
wiley   +1 more source

Origin and Evolution of Large-scale Magnetic Fields

, 2015
Magnetic elds are ubiquitous at all scales in the Universe and have been observed in galaxies and clusters of galaxies via observations of di use radio emission and Faraday Rotation Measures.
Barnes, DJ
core  

The Clustering of Dark Matter, Haloes & Galaxies [PDF]

, 2008
In this thesis I study the spatial distribution of galaxies, haloes and dark matter particlesin the Universe. The subjects investigated are conceptually divided into three areas.One line of research, which is made up of Chapters 2 and 3， is to explore ...
Raúl Esteban Angulo de la Puente,
core  

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   +1 more source

Response of Fecal Bacteria and Fungi to Tannin‐Rich Diets in Sika Deer (Cervus nippon): Evidence from Both Feeding Experiments and Field Investigations

Integrative Zoology, EarlyView.
Feeding with tannin‐rich diets altered the fecal microbial composition and increased the relative abundance of tannin‐degrading microbes. We hypothesize that fecal bacteria and fungi may play important roles in helping herbivores adapt to tannin‐rich diets but respond to different tannin concentrations varies.
Di Zhu, Feng Wu, Peiying Wen, Haiyang Gao, Xiaoran Hao, Hongfang Wang   +5 more
wiley   +1 more source

A unified empirical model for infrared galaxy counts based on observed physical evolution of distant galaxies

, 2012
7 pages, 4 figures, 1 table, ApJL in pressInternational audienceWe reproduce the mid-infrared to radio galaxy counts with a new empirical model based on our current understanding of the evolution of main-sequence (MS) and starburst (SB) galaxies. We rely
Mullaney, James, Guilaine Lagache, Charmandaris, Vassilis, Sargent, Mark T, Magdis, Georgios, Yashar Hezaveh, Mark T. Sargent, Buat, Véronique, Emanuele Daddi, Georgios Magdis, David Elbaz, Maurilio Pannella, Lagache, Guilaine, James Mullaney, Scott, Douglas, Véronique Buat, Vassilis Charmandaris, Le Borgne, Damien, Pannella, Maurilio, Hezaveh, Yashar, Damien Le Borgne, Béthermin, Matthieu, Matthieu Béthermin, Daddi, Emanuele, Elbaz, David, Douglas Scott   +25 more
core   +1 more source

Quantifying the Velocity Anisotropy Profile of Galaxy Clusters Using the Uchuu Cosmological Simulation

The Astrophysical Journal
Galaxy clusters are powerful laboratories for studying both cosmic structure formation and galaxy evolution. We present a comprehensive analysis of the velocity anisotropy profile, β ( r ), in galaxy clusters using the Uchuu-UniverseMachine mock galaxy ...
Mohamed H. Abdullah, Raouf H. Mabrouk, Tomoaki Ishiyama, Gillian Wilson, Magdy Y. Amin, Elamira Hend Khattab, H. I. Abdel Rahman   +6 more
doaj   +1 more source

Overdense fireworks in GOODS-N: Unveiling a record number of massive dusty star-forming galaxies at z ∼ 5.2 with the N2CLS

Astronomy & Astrophysics
High-density environments, such as early galaxy overdensities, play a critical role in hierarchical structure formation and galaxy evolution, providing an ideal setting for accelerated galaxy growth. The GOODS-N overdensity at z ≃ 5.2 has long been known,
Lagache G., Xiao M., Beelen A., Berta S., Ciesla L., Neri R., Pello R., Adam R., Ade P., Ajeddig H., Amarantidis S., André P., Aussel H., Benoît A., Béthermin M., Bing L.-J., Bongiovanni A., Bounmy J., Bourrion O., Calvo M., Catalano A., Chérouvrier D., Chowdhury U., De Petris M., Désert F.-X., Doyle S., Driessen E. F. C., Ejlali G., Ferragamo A., Gomez A., Goupy J., Hanser C., Katsioli S., Kéruzoré F., Kramer C., Ladjelate B., Leclercq S., Lestrade J.-F., Macías-Pérez J. F., Madden S. C., Maury A., Mayet F., Monfardini A., Moyer-Anin A., Muñoz-Echeverría M., Myserlis I., Oesch P., Paliwal A., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A. J., Ritacco A., Roussel H., Ruppin F., Sánchez-Portal M., Savorgnano S., Schuster K., Sievers A., Tucker C., Zylka R.   +61 more
doaj   +1 more source

Story2Board: A Training‐Free Approach for Expressive Visual Storytelling

Computer Graphics Forum, EarlyView.
Abstract We present Story2Board, a training‐free framework for expressive storyboard generation from natural language. Existing methods narrowly focus on subject identity, overlooking key aspects of visual storytelling such as spatial composition, background evolution, and narrative pacing.
D. Dinkevich, M. Levy, O. Avrahami, D. Samuel, D. Lischinski   +4 more
wiley   +1 more source