We present the results of the first study of statistical properties of velocity field and spatial distribution of the observed "hot spots" in methanol maser sources with available interferometric maps. Three Class I sources [DR21(OH), NGC6334IN, and L379] and one Class II source [W3(OH)] were investigated. In the majority of the sources, both the velocity difference between the pairs of spots and the average number density of the neighbors to a spot are adequately represented by a power law function of the spot separation.
Using interferometric maps, the statistical properties of the velocity fields traced by H2O masers in five galactic regions of star formation were investigated. In a previous work, Strelnitski et al. (2002) concluded that H2O masing spots in such regions appear to probe highly intermittent supersonic turbulence and demonstrated that the two-point velocity correlation functions for the line-of-sight components of velocity traced by the masers could be approximated by power laws, with the exponents near the classical Kolmogorov value of 1/3 expected for high-Reynolds number incompressible turbulence.
This study examines the ratios of animal species identified from faunal remains at two sites, Vésztő-Bikeri (V-20) and Körösladány-Bikeri (K-14), inhabited during the Early Copper Age (4500-4000 BCE) by people of the Tiszapolgár culture. The importance of this study lies in developing a greater understanding of the dramatic social changes that swept through this region during the transition from the Late Neolithic to the Early Copper Age. While there are a variety of possible explanations as to why these social changes have occurred, animal practices influenced by cultural choice may have had a significant effect on social reorganization in the Carpathian Basin.