Results 111 to 120 of about 374,177 (278)
The evolution of galaxy clustering [PDF]
Monthly Notices of the Royal Astronomical Society, 1997 This paper investigates whether nonlinear gravitational instability can account for the clustering of galaxies on large and small scales, and for the evolution of clustering with epoch. No CDM-like spectrum is consistent with the shape of the observed nonlinear spectrum. Unbiased low-density models greatly overpredict the small-scale correlations; high-
openaire +3 more sources
Temporal Loss of Genome‐Wide and Immunogenetic Diversity in a Near‐Extinct Parrot
Molecular Ecology, EarlyView.ABSTRACT Loss of genetic diversity threatens a species' adaptive potential and long‐term resilience. Predicted to be extinct by 2038, the orange‐bellied parrot (Neophema chrysogaster) is a critically endangered migratory bird threatened by numerous viral, bacterial and fungal diseases.
Luke W. Silver +6 more
wiley +1 more source
Building dwarf galaxies out of merged young star clusters [PDF]
arXiv, 2001 Young star clusters in interacting galaxies are often found in groups or clusters of star clusters containing up to 100 single clusters. In our project we study the future fate of these clusters of star clusters. We find that the star clusters merge on time scales of a few dynamical crossing times of the super-cluster.
arxiv
Search for clusters at high redshift - I. Candidate Lya emitters near 1138-262 at z=2.2 [PDF]
, 2000 Radio, optical and X-ray observations of the powerful radio galaxy PKS 1138-262 at z=2.156 have suggested that this galaxy is a massive galaxy in the center of a forming cluster.
Carilli, C. L. +9 more
core +1 more source
The 3XMM/SDSS Stripe 82 Galaxy Cluster Survey II. X-ray and optical properties of the cluster sample
, 2019 We present X-ray and optical properties of the optically confirmed galaxy cluster sample from the 3XMM/SDSS Stripe 82 cluster survey. The sample includes 54 galaxy clusters in the redshift range of 0.05-1.2, with a median redshift of 0.36.
Durret, Florence +5 more
core +2 more sources
‘The non‐dormant beast’: Antisemitism in communities of Russian nationalists on Vkontakte
Nations and Nationalism, EarlyView.Abstract The article explores the specifics of Russian antisemitic discourse of recent years using the example of three nationalist communities on Vkontakte, the most popular Russian social networking site, by means of critical discourse analysis. The main strategies they employ to frame the Jews online are stereotyping Jews as ungrateful and greedy ...
Petr Oskolkov +2 more
wiley +1 more source
Dynamical Evolution of Clusters of Galaxies, I [PDF]
, 1963 S. J. Aarseth, F. Hoyle
openalex +1 more source
The Globular Cluster Luminosity Function and Specific Frequency in Dwarf Elliptical Galaxies
, 2007 The globular cluster luminosity function, specific globular cluster frequency, S_N, specific globular cluster mass, T_MP, and globular cluster mass fraction in dwarf elliptical galaxies are explored using the full 69 galaxy sample of the HST WFPC2 Dwarf ...
Baumgardt H. +4 more
core +1 more source
The strength of organ, tissue, and body field effects determines the frequency of all neoplasia
Annals of the New York Academy of Sciences, EarlyView.Abstract In 1953, Danely Slaughter proposed the concept of field cancerization, or field effect, to explain the development of additional neoplasia of similar type. A recent theory (de Groen, 2022) states that all DNA is exposed to a constant source of damage, resulting in a constant rate of germline and somatic DNA mutations.
Piet C. de Groen
wiley +1 more source
The luminosity dependence of clustering [PDF]
arXiv, 2001 The PSCz redshift survey and the ongoing Two-Degree Field Galaxy Redshift Survey (2dFGRS) are used to look for luminosity dependence of galaxy clustering by measuring the two point correlation functions for sub-samples of the surveys. An analysis of the PSCz survey finds that galaxies with cooler colours are more strongly clustered than warmer ...
arxiv