We present the results of deep spectroscopy for the central region of the cluster lens SDSS J1004+4112 with the Subaru telescope. A secure detection of an emission line of the faint blue stellar object (component E) near the center of the brightest cluster galaxy (G1) confirms that it is the central fifth image of the lensed quasar system. In addition, we measure the stellar velocity dispersion...

A scenario of galaxy formation is put forward which is a process of sudden condensation just after recombination. It is essentially based on the fact that the cosmic matter gas after recombination is a general relativistic Boltzmann gas which runs within a few 10 years into a state very close to collision–dominated equilibrium. The mass spectrum of axially symmetric condensation ”drops” extends...

An analysis of a ROSAT/HRI observation of the optically rich, gravitationally lensing galaxy cluster CL0500-24 (or Abell S0506) is presented. We show that the X-ray luminosity of this supposedly rich cluster is relatively low at 1.1 −0.1 × 10 44 erg/s in the ROSAT band, the bolometric X-ray luminosity is 2.0 −0.7 × 10 44 erg/s. The X-ray emission is strongly correlated with the northern subconc...

The Seyfert 1 nucleus of NGC4395 is energized by a black hole of mass 3.6× 10M⊙ (Peterson et al.), making it one of only two nuclear black holes of intermediate mass, 10−10M⊙, detected in the radio regime. Building upon UV and X-ray evidence for outflows from this Seyfert nucleus, the VLBI High Sensitivity Array was used at 1.4 GHz to search for extended structure on scales greater than 5 mas (...

We present the galaxy cluster autocorrelation function of 277 galaxy cluster candidates with 0.25 ≤ z ≤ 1.5 in a 7 deg2 area of the IRAC Shallow Cluster Survey. We find strong clustering throughout our galaxy cluster sample, as expected for these massive structures. Specifically, at 〈z〉 = 0.5 we find a correlation length of r0 = 17.40+3.98 −3.10 h −1 Mpc, in excellent agreement with the Las Cam...

We investigate the structure of the dark matter halo formed in the cold dark matter scenarios by N-body simulations with parallel treecode on GRAPE cluster systems. We simulated 8 halos with the mass of 4.4 × 10M⊙ to 1.6× 10M⊙ in the SCDM and LCDM model using up to 30 million particles. With the resolution of our simulations, the density profile is reliable down to 0.2 percent of the virial rad...

A plastic membrane electrode for the determination of methacycline hydrochloride was fabricated based on the use of methacycline-tetraphenylborate as the electroactive substance, and dioctylphtalate as the plasticizing agent. It was found that the potential responses of the electrode were influenced by pH of the tested solution when pH>3. Under the condition of pH 2.6, the linear response range...

Ni-Mn-Ga is a ferromagnetic shape memory alloy that deforms by twin boundary motion. The magneto-mechanical properties depend strongly on the twin microstructure. A thermomechanical treatment was applied to a Ni-Mn-Ga single crystal with coexisting 10M and 14M martensite structures to create twin boundaries and align the short crystallographic c direction preferentially perpendicular to the sur...

The article analyzes the operation of "engineering protective structures-soil massif" system in zone influence surrounding buildings presence complex engineering and geological conditions. Simulation task setting up a deep pit under protection with multi-tiered retaining wall was carried out. mutual development near new construction, depending on distance between them, revealed. optimal existin...

Background and Study Aim. This study aimed to examine the differences between a range of performance parameters in -Greco-Roman Freestyle wrestlers. The group consisted 60 young wrestlers, which 30 were Greco-Roman, freestyle.
 Material Methods. analysed included aerobic endurance, lower upper extremity anaerobic power capacity, postural sway, change direction, sprint (5m-10m-20m-30m), vis...