Results 101 to 110 of about 218,185 (279)

Clustering and redshift-space distortions in QSO and galaxy surveys [PDF]

, 2006
In this thesis, we exploit the potential of existing QSO and galaxy surveys for investigating the nature of the large scale structure in the Universe. A detailed analysis of clustering and redshift- space distortions allows us to constrain cosmological ...
Cruz da Angela, José Antonio, José Antonio Cruz da Angela   +1 more
core  

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

Cold Gas Infall onto a Brightest Group Galaxy via a Gas-rich Minor Merger

The Astrophysical Journal Letters
Dust and cold gas are not uncommon in nearby early-type galaxies (ETGs) and represent an important aspect of their evolution. However, their origin has been debated for decades.
Ming-Yang Zhuang, Jinyi Shangguan, Yuan Bian, Yue Shen, Luis C. Ho, Min Du, Junyao Li, Zhao-Yu Li, Jing Wang   +8 more
doaj   +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

First Search for High-Energy Neutrino Emission from Galaxy Mergers [PDF]

The exact sources of high-energy neutrinos detected by the IceCube neutrino observatory still remain a mystery. For the first time, this work explores the hypothesis that galaxy mergers may serve as sources for these high-energy neutrinos. Galaxy mergers
Laha, Ranjan, Bouri, Subhadip, Parashari, Priyank, Das, Mousumi   +3 more
core   +1 more source

Galaxy Mergers Moulding the CGM

, 2017
Galaxies are surrounded by sizeable gas reservoirs which host a significant amount of metals: the circum-galactic medium (CGM). The CGM acts as a mediator between the galaxy and the extra-galactic medium. However, our understanding of how galaxy mergers,
Sparre, Martin, Torrey, Paul, Vogelsberger, Mark (5386924), Hani, Maan H. (5386927), Torrey, Paul (5373778), Hani, Maan H., Sparre, Martin (5386921), Ellison, Sara L. (5386930), Vogelsberger, Mark, Ellison, Sara L.   +9 more
core   +1 more source

Massive galaxy mergers have distinctive global H I profiles

, 2022
The global 21 cm H i emission-line profile of a galaxy encodes valuable information on the spatial distribution and kinematics of the neutral atomic gas.
Ho, L., Yu, N., Jinyi, S., Wang, J., Zuo, P.   +4 more
core   +1 more source

Genotyping Contemporary Captive and Historical Wild Western Lowland Gorillas Indicates Captive Breeding Is Maintaining Genetic Diversity in a Critically Endangered Primate

Animal Conservation, EarlyView.
Captive populations of threatened species risk losing genetic diversity over time. We evaluated the genetic status of contemporary captive western lowland gorillas (Gorilla gorilla gorilla) at Howletts and Port Lympne and compared this with specimens from a historical wild population.
Jaimie Morris, Tony King, John Hills, Simon C. Harvey, Jane Hopper, Rodrigo Vega   +5 more
wiley   +1 more source

Galaxy evolution in the post-merger regime. II -- Post-merger quenching peaks within 500 Myr of coalescence

The Open Journal of Astrophysics
Mechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched post-starbursts (PSBs) in
Sara Ellison, Leonardo Ferreira, Vivienne Wild, Scott Wilkinson, Kate Rowlands, David R. Patton   +5 more
doaj   +1 more source

Mergers and Dynamic Oligopoly [PDF]

Static oligopoly theories disagree on whether mergers are profitable. The Cournot model says that many potential mergers would be unprofitable whereas the Bertrand model says that all mergers are profitable.
Kwang Soo Cheong, Kenneth L Judd
core