Based on an analysis of the interstellar highly ionised species C IV, Si IV, N V, and O VI observed in the FUSE and HST/STIS E140M spectra of four hot stars in the Large Magellanic Cloud (LMC), we find evidence for a hot LMC halo fed by energetic outflows from the LMC disk and even possibly an LMC galactic wind. Signatures for such outflows are the intermediate and high-velocity components (vLS...

Hall effects on an unsteady MHD flow of a viscous incompressible electrically conducting fluid between two rotating disks with non-coincident parallel axes embedded in a porous medium have been studied. The governing equations have been solved analytically using the Laplace transform technique. The effects of rotation parameter, Hall parameter, Hartmann number and Darcy number have been conside...

(i) When was the Galaxy assembled? Is this an ongoing process? What was the merging history of the Milky Way? (ii) When did star formation occur in what is now ‘The Milky Way Galaxy’? Where did the star formation occur then? What was the stellar Initial Mass Function? (iii) How much dissipation of energy was there before and during the formation of the different stellar components of the Galaxy...

Jet systems with two unequal components interact with their parent accretion disks through the asymmetric removal of linear momentum from the star-disk system. We show that as a result of this interaction, the disk’s state of least energy is not made up of orbits that lie in a plane containing the star’s equator as in a disk without a jet. The disk’s profile has the shape of a sombrero curved i...

We used N-body dynamical simulations to analyze the conditions for the gravitational stability of a three-dimensional stellar disk in the grav-itational field of two rigid spherical components — a bulge and a halo, whose central concentrations and relative masses vary over wide ranges. The number of point masses N in the simulations varied from 40 to 500 thousands and the evolution of the simul...

Abstract Observations of protoplanetary disks have shown that forming exoplanets leave characteristic imprints on the gas and dust disk. In gas, these cause deviations from Keplerian motion, which can be detected through molecular line observations. Our previous work has machine learning correctly determine if a planet is present in disks. Using our machine-learning models, we identify strong, ...

In this review I will discuss the comparison between model results and observational data for Milky Way, predictive power of such models as well their limits. Such a comparison, known Galactic archaeology, allows us to impose constraints on stellar nucleosynthesis timescales formation various components (halo, bulge, thick disk thin disk).

We describe the structure of a space-efficient phrase table for phrasebased statistical machine translation with the Moses decoder. The new phrase table can be used in-memory or be partially mapped on-disk. Compared to the standard Moses on-disk phrase table implementation a size reduction by a factor of 6 is achieved. The focus of this work lies on the source phrase index which is implemented ...