... Takuya Akahori "Faraday Rotation Measure due to the Intergalactic Magnetic Field" . Shae Brown "Cross-correlation of ATLAS and Spitzer-SWIRE Surveys: Probing intergalactic magnetic fields" . Roger Clay "Using low energy cosmic rays to investigate local galactic magnetic fields" . Roland Crocker "A new lower limit on the magnetic field around the Galactic Centre" . ... JinLin Han "Rotation measures of pulsars and radio sources for Galactic magnetic fields" . ...

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Raquel Salmeron The mechanism(s) responsible for generating the angular momentum transport required for star/planet formation remain poorly understood. ... In recent times it has been realised that the answer may lie in the complex interaction of gas and magnetic fields present in the flattened disc of material that surrounds the star in formation (e.g., Balbus Hawley 1998) . ... COALA : Universe Galaxy AGN Star Planet ...

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. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

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• ELECTRICITY GENERATION

... Head of the seminar: Prof. B.V. Somov, . ... The seminar considers the questions related to generation of magnetic fields in astrophysical plasmas, effect of the magnetic reconnection and particle acceleration in strong magnetic fields, the origin and propagation of cosmic rays, the flares and other non-stationary phenomena in the solar atmosphere and solar wind, Sun Earth connections and physical processes in the heliosphere. ... On the Topological Models and Topological Trigger of the Solar Flares...

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... Search . Email & phone search . ... Astrophysics Group . ... Galaxy Formation and Evolution . Highlights & News . ... Main Projects . ... PhD Thesis Projects . ... 2013, Astrophysics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE . ...

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Magnetic Stars, 2011, pp. 444 ­ 449 On Magnetic Field Generation Mechanisms in Astrophysics Cherny O. G. 1 2 Central (Pulkovo) Astronomical Observatory RAS, Saint­Petersburg, Russia Saint­Petersburg State Polytechnical University, Saint­Petersburg, Russia Abstract. ... The lines of force of this field ON MAGNETIC FIELD GENERATION MECHANISMS IN ASTROPHYSICS 445 are assumed to be frozen in the primary plasma, with the magnetic field increasing as the plasma is compressed. ...

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... SOLAR FLARES . Reconnection of magnetic fields of the moving magnetic structures at the Sun surface results in formation of current layers and generation of plasma waves. Electrons and photons are accelerated by the electrostatic fields and the plasma waves to energies of hundreds and thousands MeV. ... accelerated charged particles generate the high energy photons. ... Schematic model of the solar flare. table of contents . previous page . next page . ... CYGAM (PDF, 450 Kb) . ...

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... nonlinear stabilization, the helicity, rotation and small-scale structures influence, the precursors of crisis processes development, the modeling of coherent structures evolution, applications in the natural disasters forecasting, for the helical structures generation in plasmas and astrophysics . ... Large-scale instabilities in hydrodynamics and plasmas . ... The turbulence in plasmas and in the atmosphere and MHD-turbulence . ...

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Top] [Prev] [Next] . The frequency of substellar companions orbiting solar-type stars has proven to be rather low, on the order of a few percent for periods shorter than a few years and masses larger than one Jupiter. ... The first interesting low-mass companion to a solar-type star, HD 114762, was discovered instead at a much lower velocity precision, as part of a large survey. ... This may clarify the mechanisms involved in the formation and evolution of low-mass companions. ...

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Next: Supernova Explosions Up: No Title Previous: X-ray Luminosity Evolution . The origin of cosmic rays (CR) (especially of very high energies, >  eV) until now has been one of the unsolved problems in modern astrophysics. It is unclear as yet whether one universal mechanism of relativistic particle formation in our Galaxy operates or not, and if there are several different mechanisms, what is their relative contribution to CR formation. ... compact X-ray stars in binary systems. ...

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... Project page . ... Project workpage . Turbulence in the Multiphase Interstellar Medium . Project I | ... Project highlight | ... Towards simulating turbulence with adaptive meshes . ... A. Kritsuk, P. Padoan, M. Norman . ... A. Kritsuk M. Norman . ... A. Kritsuk, M. Norman, P. Padoan . astro-ph/0411626 | ... P. Padoan, A. Kritsuk, M. Norman, A. Nordlund . ... Introducing Enzo, an AMR Cosmology Application . B. O'Shea, G. Bryan, J. Bordner, M. Norman, T. Abel, R. Harkness, A. Kritsuk . ...

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... Tonight's Sky . ... Observing . ... Sky this Month . ... Star Atlas . ... stars . ... Observing Podcasts . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... How do neutron stars generate steady magnetic fields? ... How can a neutron star exist if those neutrons are just going to pieces? Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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... The department was founded in late sixties by Prof. D.Ya.Martynov, who for many years was also the director of Sternberg Astronomical Institute. At present time, the head of the department is Prof. A.M.Cherepashchuk, a pupil of D.Ya.Martynov and his successor as the director of SAI. Since Prof. Martynov, the scientific activity of the department was primarily related to binary stars. ... The department consists of 15 members most of which have Ph.D. in Astrophysics. ...

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. Departement of Quantum Astrophysics . Head: Kurt V.G. , Prof. ultraviolet spectroscopy of planetary upper atmospheres and interplanetary/interstellar medium; . observations of gamma-bursts and optical identification of their sources; . long-base optical interferometry. Staff: .

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Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

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Astronomy Picture of the Day . ... 17.05.2001 . ... In a new twist to this solar neutrino saga, an analysis of data from the GALLEX / GNO neutrino detector finds a solar neutrino flux that varies over about 27 days ... approximately matching the Sun's rotation period. In fact, since different parts of the Sun rotate at different rates, the neutrino flux variations match most exactly the rotation rates of the areas shown in red on this colorful cross-sectional map of the solar interior rotation . ...

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... Up: Future Instruments and Telescopes, Tools . ... New Generation Astronomical Telescopes (NGAT), a class of telescopes designed to be operated remotely and robotically, require efficient methods for communicating images over heterogeneous and low-bandwidth data networks such as the Internet. ... Methods researched thus far involve the classification of astronomical images based on object parameterisation, progressive image transmission, and evaluation of existing image compression schemes. ...

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... Be Stars . ... Magnetic Stars . ... Magnetic fields in stars are common. ... The earliest star known to have a magnetic field is the O-star 1 Ori C, one of trapezium stars in the central cluster of the Orion nebula of spectral type O6. ... The non-existence of more rapidly rotating magnetic stars was thought to be an immediate consequence of the magnetic field: The field would help the star to get rid of angular momentum by forcing the wind into co-rotation, and so to brake down the star. ...

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... 2001 May 17 . Solar Neutrino Astronomy . ... In a new twist to this solar neutrino saga, an analysis of data from the GALLEX / GNO neutrino detector finds a solar neutrino flux that varies over about 27 days ... approximately matching the Sun's rotation period. In fact, since different parts of the Sun rotate at different rates, the neutrino flux variations match most exactly the rotation rates of the areas shown in red on this colorful cross-sectional map of the solar interior rotation . ...

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