... X-ray (left) and magnetic field (right) evolution of an X-ray jet in coronal hole. ... In both coronal holes and quiet-Sun regions, all brightening events are associated with bipolar regions and caused by magnetic flux emergence followed by cancellation with the pre-existing and/or newly emerging magnetic flux. ... The dominant flux of the coronal hole form the largest concentration of magnetic flux in terms of size while the opposite polarity is distributed in small concentrations. ...

P. Frisch - Warm partially ionized interstellar gas at the Sun . ... W. M. Goss - Time variations in small-scale galactic HI structure toward 3C138 . S. Stanimirovic - Does tiny-scale atomic structure exist in the ISM? ... T. Bania - The distance to molecular clouds via HI self-absorption . ... C. Heiles - Arecibo Millennium Survey statistics of magnetic field, column density and turbulence in the CNM . R. Crutcher - Magnetic fields in molecular clouds . ...

We present infrared observations of 66 starburst galaxies over the full range of oxygen abundances observed in local star-forming galaxies, from 12+log(O/H)=7.1 to 8.9. ... We confirm a strong correlation of aromatic emission with metallicity, with a threshold at 12+log(O/H)~8. We show that the far-infrared color temperature of the large dust grains increases toward lower metallicity, peaking at a metallicity of 8 before turning over. ... ADS Citation Query . citations = 169 . ...

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... 2014 Science Highlights . Spatially-resolved dust properties of the GRB 980425 host galaxy . Michalowski et al. (2014) present spatially resolved maps of dust emission of the host galaxy of the closest known GRB 980425 at z = 0.0085 using our new high-resolution observations from Herschel, Atacama Pathfinder Experiment (APEX), Atacama Large Millimeter Array (ALMA) and Australia Telescope Compact Array (ATCA). ... 2014). ATNF Science Highlights from refereed publications during 2014. | ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

... We present 5GHz high resolution VLA observations of 2,127 radio-- and X-ray--emitting sources found in both the Green Bank (GB) 5GHz radio catalog and the ROSAT All-Sky Survey (RASS). We report core flux densities and positions accurate to =-0.5". ... This table has 1861 rows and 9 columns giving: Catalog source name, RA and DEC (J2000), observation code, S/N ratio, VLA core flux density at 5 GHz (mJy), Green Bank flux density at 5 GHz (mJy), error in Green Bank flux density (mJy), and Notes. ...

... I will discuss how observations of synchrotron intensity fluctuations can be used to probe the sonic and Alfvenic Mach numbers of interstellar turbulence, based on mock observations performed on simulations of magneto-hydrodynamic turbulence. I will also discuss the potential for novel polarisation analysis techniques to uniquely determine the sonic and Alfvenic Mach numbers of observed turbulence, and to assist in qualitative understanding of Galactic magneto-ionic turbulence. ...

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... Physical Properties of Crystals . ... The course is an introduction into crystal physics and consists of two introductory parts devoted to the basics of crystallography and tensor analysis and six main chapters in which the physical phenomena in anisotropic medium are described by the example of the elastic, electrical and magnetic crystal properties. The effect of symmetry is also discussed. ... Effect of symmetry on crystal properties. ... Effect of symmetry on crystal optical properties. ...

11 august 2014/Monday: Arriving, Registration . ... The variation of solar flare coronal X-ray source spatial properties. ... Melnikov V.F., Charikov Yu.E., Kudriavtsev I.V. Directivity of X-ray and gamma-ray emission from different parts of flaring magnetic loops. ... E., Melnikov V.F. Angular characteristics of polarization degree of hard X-ray emission from different parts of flaring magnetic loops. ... The thick target model and analytical calculations of the hard X-ray emission from solar flares. ...

... At the simplest level of modelization, these phenomena are described by reaction-diffusion equations. The theory of this type of equation is far away from being fully understood but one can give however several results providing in some cases existence of solutions and their qualitative behaviour. ... Reaction-diffusion equations. ... Theory of uniformly elliptic equations: existence, regularity, Schauder theory, Agmon-Douglis-Nirenberg theory, Harnack estimates, boundary Harnack principle. ...

... Science . ... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > T