Using ultra-deep imaging ($\mu_g = 30.4$ mag/arcsec$^2$; 3$\sigma$, 10"x10"), we probed the surroundings of first galaxy "lacking" dark matter KKS2000[04] (NGC 1052-DF2). Signs tidal stripping in this would explain its claimed low content matter. However, find no evidence tails. In fact, remains undisturbed down to a radial distance 80 arcsec. This triples previous spatial explorations stellar ...

Introduction. According to the lexical restructuring model, development of vocabulary initiates phonological representations. Therefore, it can be predicted that children with developed will possess very specific representations words. Aim. The aim this research was determine significance awareness, verbal working memory, and rapid automatic naming as indicators expressive receptive in preschoo...

Gas hydrates are non-conventional materials offering great potential in capturing, storage, and sequestration of different gases. The weak van der Waals interactions between a gas molecule the pore walls stabilize these non-stoichiometric structures. present article reports an ab initio improved density functional (vdW-DF2) study devoted to associated with H2, CH4, CO2 adsorption sI clathrate h...

Abstract In this study, we use Keck/KCWI spectroscopy to measure the age, metallicity and recessional velocity of NGC 1052-DF9 (DF9), a dwarf galaxy in 1052 group. We compare these properties those two other galaxies group, 1052-DF2 1052-DF4, which have low dark matter content. The three are proposed constituents trail recently hypothesised formed as part ‘bullet dwarf’ collision. show that age...

2 Characteristic functions 2 2.1 Beta distribution: cfbeta(t, shape1, shape2, ncp = 0) . . . . . . . . . . . . . . . . . . . 2 2.2 Binomial distribution: cfbinom(t, size, prob) . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.3 Cauchy Distribution: cfcauchy(t, location = 0, scale = 1) . . . . . . . . . . . . . . . . 4 2.4 Chi-square Distribution: cfchisq(t, df, ncp = 0) . . . . . . . . . ....

We present a comparative assessment of the accuracy of two different approaches for evaluating dispersion interactions: interatomic pairwise corrections and semiempirical meta-generalized-gradient-approximation (meta-GGA)-based functionals. This is achieved by employing conventional (semi)local and (screened-)hybrid functionals, as well as semiempirical hybrid and nonhybrid meta-GGA functionals...

Trichomycterus areolatus Valenciennes, 1846 is a small endemic catfish inhabiting the Andean river basins of Chile. In this study, the morphological variability of three T. areolatus populations, collected in two river basins from southern Chile, was assessed with multivariate analyses, including principal component analysis (PCA) and discriminant function analysis (DFA). It is hypothesized tha...