... Equipment . ... At present our UHV equipment consists of two UHV STMs. The first one is a room-temperature STM GPI-300 (atomic resolution on metals) connected with a UHV technological chamber. The chamber is equipped with a sample heater, deposition equipment, tip-clean equipment and a low-temperature 4-probe conduction measurement unit. ... The temperature interval is 5-300 K, the vacuum in the STM chamber is usually better than 10 -10 Torr (typical value 3x10 -11 Torr). ...

We investigate models for main-sequence and horizontal-branch (HB) stars constructed using the Carson opacities and make comparisons with models based on the Cox-Stewart opacities. ... The drop in the hydrogen-shell luminosity due to the helium-core expansion during HB evolution is greater than that obtained with the Cox-Stewart opacities. ... Studies of main-sequence (MS) stars lead to agreement with Stothers' (1974a,b, 1976) results for homogeneous models constructed with Carson opacities. ...

... Recall that (Voevodsky's) motives correspond to a certain 'universal cohomology theory for smooth algebraic varieties'. Note that in contrast with 'classical' categories of motives (i.e. Chow, homological and ef numerical ones) Voevodsky's DMgmf DMgm are endowed with natural (and highly non-trivial) structures of triangulated categories. ... I also proved several new results on motives: they concern coniveau spectral sequences, motivic cohomology, and unramified cohomology. ...

... RAFCAP acts as the scientific expert committee on frequency issues for the Asia- Pacific radio astronomy and related sciences. The mission of RAFCAP is . ... RAFCAP will . ... RAFCAP Committee Members are required to maintain links with their national observatories involved in radio astronomy and with their national radiocommunications administrations. ... Member institutions of RAFCAP – supporting the meetings of the Committee – should be involved in radio astronomy, or related sciences. ...

The Local Group dwarf spheroidal galaxies: A key to the building blocks in the Universe H. Hirashita et al. Kyoto University, Japan Recent studies have been revealing the dark matter content in dwarf spheroidal galaxies (dSphs). ... We select the Local Group dSphs as a sample. ... However, we nd no observational evidence that the tidal forces by giant galaxies a ect the density pro les of the dSphs, which indicates that the stellar systems of the dSphs lie in their deep dark matter potentials. ...

The quantity of dust in a spiral disk can be estimated using the dust's typical emission or the extinction of a known source. In this paper we compare two techniques, one based on emission and one on absorption, applied to sections of 14 disk galaxies. ... Hence, they depend differently on the average number and optical depth of ISM structures in the disk. The small-scale geometry of the cold ISM is critical for accurate models of the overall energy budget of spiral disks. ...

... Next: Cheating Poisson: A Up: Statistical Analysis Previous: Spatial Models and . ... The spatial distribution of stars in the Local Group dwarf irregular galaxy NGC 6822 has been studied, using recent positions and deep photometry for about 15,000 stars in the galaxy. Based on photometrical data, OB stars and red stars could be studied separately. Spatial statistical tools have been applied to the analysis of the spatial structure. ... Figure: Model selection by the aid of CAIC . ...

Solar Flare Origin - critical analysis" Lev Pusti'lnik We analyze current approach to solar flare origin in 3 aspects: a. Pre-flare equilibrium state of current-magnetic structure above active region and its evolution to flare state, b. Possible reasons of stability loss with transition of system in flare state c. Flare energy release in turbulent current sheet and particle acceleration in this system. ...

... A molecular cloud in the interstellar medium may be considered as spherical and of uniform density and fixed temperature as it undergoes expansion or contraction. Assume the opacity of material in the molecular cloud has a value . ... How will this affect cloud fragmentation?