Results 51 to 60 of about 455,483 (298)

The trajectories of galaxies in groups: mass loss and preprocessing [PDF]

open access: yes, 2018
We present a study of environmental effects and preprocessing in a large galaxy group using a high-resolution, zoom-in simulation run with the GASOLINE2 hydrodynamics code. We categorize galaxies that were always in distinct haloes as unaccreted, galaxies that were distinct before accretion onto the main group as single, and galaxies that were in ...
arxiv   +1 more source

BSG alignment of SDSS galaxy groups

open access: yes, 2013
We study the alignment signal between the distribution of brightest satellite galaxies (BSGs) and the major axis of their host groups using SDSS group catalog constructed by Yang et al. (2007).
Chen, Xuelei   +5 more
core   +1 more source

Nearby Optical Galaxies: Selection of the Sample and Identification of Groups [PDF]

open access: yes, 2000
In this paper we describe the Nearby Optical Galaxy (NOG) sample, which is a complete, distance-limited ($cz\leq$6000 km/s) and magnitude-limited (B$\leq$14) sample of $\sim$7000 optical galaxies.
Armando Pisani   +24 more
core   +2 more sources

Scintillation Response of 0D Cs3Cu2I5 Thin Layers to Light‐ and Heavy‐Ion Irradiation

open access: yesAdvanced Photonics Research, EarlyView.
Driven by increasing interest in uncovering the remarkable photoluminescence quantum yield of Cs3Cu2I5, polycrystalline thin layers are synthesized to investigate its radioluminescence response to energetic ions. Its spectroscopic capability is assessed in a wide range of ion mass and internal excitation processes are explored.
Mátyás Hunyadi   +6 more
wiley   +1 more source

Dynamic regulation of the transcriptome and proteome of the equine embryo during maternal recognition of pregnancy

open access: yesFASEB BioAdvances, Volume 4, Issue 12, Page 775-797, December 2022., 2022
Abstract During initial maternal recognition of pregnancy (MRP), the equine embryo displays a series of unique events characterized by rapid blastocyst expansion, secretion of a diverse array of molecules, and transuterine migration to interact with the uterine surface.
Alba Rudolf Vegas   +6 more
wiley   +1 more source

No Evidence of Asymmetrically Enhanced Star Formation in Infalling Galaxies in UNIONS

open access: yesThe Astrophysical Journal
Ram pressure stripping is a well-known environmental quenching mechanism that removes gas from galaxies infalling into groups and clusters. In some extreme examples of ram pressure stripping, galaxies with extended gas tails show evidence of enhanced ...
Lauren M. Foster   +7 more
doaj   +1 more source

Galaxy groups and the modified dynamics

open access: yes, 1998
I estimate Modified-Dynamics (MOND), median M/L values for recently published catalogues of galaxy groups. While the median, Newtonian M/L values quoted for these catalogues are 110-200 solar units, the corresponding values for MOND are less than 10 ...
Begeman K. G.   +3 more
core   +1 more source

Mass segregation trends in SDSS galaxy groups [PDF]

open access: yes, 2014
It has been shown that galaxy properties depend strongly on their host environment. In order to understand the relevant physical processes driving galaxy evolution it is important to study the observed properties of galaxies in different environments ...
Evans, Fraser A.   +3 more
core   +1 more source

Genomic Insights into Post‐Domestication Expansion and Selection of Body Size in Ponies

open access: yesAdvanced Science, EarlyView.
The authors’ research delves into the history of ponies by assembling a pony genome and integrating horse genomes. This unveils genetic connections between Asian and European pony breeds. Cis‐regulatory elements of key genes impacting body size are also identified.
Xingzheng Li   +23 more
wiley   +1 more source

The Importance of Gas Starvation in Driving Satellite Quenching in Galaxy Groups at z ~ 0.8

open access: yesThe Astrophysical Journal
We present results from a Keck/DEIMOS survey to study satellite quenching in group environments at z  ~ 0.8 within the Extended Groth Strip (EGS). We target 11 groups in the EGS with extended X-ray emission. We obtain high-quality spectroscopic redshifts
Devontae C. Baxter   +3 more
doaj   +1 more source

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