... Astronomers of the SAO together with an international group of scientists have proposed an explanation to the long-standing mystery of why magnetic fields are more common amongst cool white dwarf stars than amongst young and hotter ones. ... As the result magnetic white dwarfs demonstrate excess in their frequencies in the temperature range below 14000K. The authors also show that the strongly magnetic white dwarfs are of the oldest stars of the Galaxy originated from intermediate-mass relic stars. ...

... The evolution of magnetic fields in OB-type stars from the study of open clusters of different ages . ... Wade G. A. The MiMeS Project: Magnetism in Massive Stars . ... Polosukhina N., Shavrina T., Drake N., Kudryavtsev D. Smirnova M. New results of the spectral observations of CPstars in the Li I 6708? spectral region with BTA telescope of SAO RAS . ... Magnetic Stars-2010 . ... List of participants . List of reports . ... Laboratory for the Stellar Magnetism Study of SAO of the RAS . ...

... HST . ... Data . ... HST Overview . Overview . ... Cycle 24 Announcement . ... Retrieving HST Data . ... Instruments . ... Grism Spectroscopy . ... UVIS Flats . ... Instrument Handbook . Data Handbook . ... The Wide Field Camera 3 (WFC3) is a fourth-generation UVIS/IR imager aboard the Hubble Space Telescope (HST). WFC3 was installed in May 2009 during HST servicing mission 4, and replaces the Wide Field Planetary Camera 2 (WFPC2). ... ISR 2016-09: WFC3 Cycle 22 Proposal 14007: UVIS Gain . ...

Origin & Evolution of Magnetic Fields Ellen Zweibel zweibel@astro.wisc.edu Depar tments of Astronomy & Physics University of Wisconsin, Madison and Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas Origin & EvolutionofMagnetic Fields ­ p.1/17 Importance of the Problem A cosmological problem. ... Interplay with ISM studies Structure of galactic fields on large & small scales? How do fields affect turbulence? ... Origin & EvolutionofMagnetic Fields ­ p.7/17 We Also Know.. ...

... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Star formation: probing magnetic fields and their spheres of influence . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... Magnetic fields play a key role in the early formation of low mass stars, from regulating the initial collapse of the protostar, controlling accretion from large circumstellar disks and their evolution along the early main sequence. ... Return to list of thesis topics . ...

MAGNETIC FIELDS IN STARS John Landstreet, Leverhulme Visiting Professor at Armagh Observatory Eight one-hour lectures supplemented by approximately eight hours of supplementary reading and eight hours of short problems and exercises. ... Lecture 1 An overview of the place of magnetic fields in stellar evolution, from star formation to final collapse -- where fields are found, what phenomena they are associated with, what importance they may have. ... Final review of the course. ...

... 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. ...

... An Empirical Relation Between The Large-Scale Magnetic Field And The Dynamical Mass In Galaxies . ... The origin and evolution of cosmic magnetic fields as well as the influence of the magnetic fields on the evolution of galaxies are unknown. ... Putting together the available data of non-interacting, non-cluster galaxies with known large-scale magnetic fields, Tabatabei et al. (2016) find a tight correlation between the integrated polarized flux density and the rotation speed, v(rot), of galaxies. ...

... Other Characteristics of the Sun: Variability of Rotation, Magnetism, Chemical Structure, Planetary System. ... Methods of Solar Magnetic Fields Measuring: Visual, Photografic, Photoelectric. ... Empiric Datas of Magnetic Fields in Photosphere, Chromosphere and Corona. ... Characteristics of Magnetic Field in Balanced Force Tubes by Potential and Forceless Field. ... Phenomenons in Active Region (Magnetic Field, Spots, Torches, Solar Prominences, Flares, Discharges. ... Magnetic Fields in Flares. ...

... The are two main sources of magnetospheric electric fields. The other is the solar wind related, dawn-to-dusk directed ("convection") field, and the other is the co-rotation electric field related to the rotation of the Earth along its spin axis. The electric fields have a strong effect on the drift paths of the magnetospheric plasma . ... The energetic particles, following the magnetic drifts more readily, are also affected by the convection field. ... Space Physics Text Book of Oulu ...

It is a matter of common knowledge that in processes of genesis and evolution of many solar phenomena participate magnetic fields of sunspots. ... As a basis for formation of the database we take data on magnetic fields, collected by set of observatories during many years of observations. ... Section "Magnetic field data" contains data of magnetic field observation for separate sunspots, presented in standard text format (ASCII). ... Description of structure of these files is presented here . ...

... Unbiased surveies of star-forming regions; evolutionary processes in star formation; IMF; determination of evolutionary tracers . ... Light elements; mixing in stars . ... Spectroscopy of low-mass stars in SFRs/associations: cluster formation, triggered SF, SFHs, accretion properties . ... Influence of cooling e and magnetic field on the formation of primordial stars . ... This email address is being protected from spambots. You need JavaScript enabled to view it. ... 39 0552752 251 . ...

... 2 Magnetic Field . ... A magnetized bar has its power concentrated at two ends, its poles ; they are known as its north (N) and south (S) poles, because if the bar is hung by its middle from a string, its N end tends to point northwards and its S end southwards. ... That flow became known as an electric current . ... An electric current produced a magnetic force! ... The fundamental nature of magnetism was not associated with magnetic poles or iron magnets, but with electric currents . ...

In accreting binary neutron star systems matter is channelled by the strong magnetic field to the poles of the neutron star. The accreted matter accumulates at the poles to form accretion mounds. Pressure from the confined matter can significantly distort the local magnetic field structure, affecting the X-ray observations and long term evolution of the magnetic field. ...

Abstract -- The strengths of magnetic fields in interstellar gas clouds are obtained through observations of the circular polarization of spectral line radiation. ... To infer information about these irregularities from the observational data, we develop statistical relationships between the rms values of the irregular component of the magnetic field and spatial variations in the circular polarization of the spectral line radiation. ...

Find Similar Abstracts . ... Magnetic fields in astrophysics . ... Astrophysics . ... ASTROPHYSICS, DYNAMO THEORY, INTERSTELLAR MAGNETIC FIELDS, MAGNETIC FIELDS, MAGNETOHYDRODYNAMICS, STELLAR MAGNETIC FIELDS, ACCRETION DISKS, BLACK HOLES (ASTRONOMY), COSMOLOGY, FARADAY EFFECT, MAGNETIC CLOUDS, MAGNETIC MONOPOLES, MAGNETOHYDRODYNAMIC FLOW, MAGNETOHYDRODYNAMIC TURBULENCE, MILKY WAY GALAXY, PULSARS, ROTATING FLUIDS, SOLAR MAGNETIC FIELD, STELLAR ACTIVITY, STELLAR EVOLUTION, TOPOLOGY, ZEEMAN EFFECT . ...

Modelling the effects of FR II radio jets on the turbulent magnetic fields in the intra-cluster medium Mar tМn Huar te Espinosa , Mar tin Krause, Paul Alexander and Christian R. Kaiser. ... The plasma relaxes for a crossing time (118 Myr) and then we inject mass and x-momentum to a central control cylinder and experiment with the jets power: velociB µG RM maps We calculate RM= 812 dl rad m-2 from the jets' con3 tact discontinuity to the end of the domain along different viewing angles. ...

... V.N. Obridko . ... Local fields . ... Large Scale Magnetic Fields . Solar cycle . ... Solar magnetic fields . ... On the energy release by magnetic field dissipation in the solar atmosphere . Solar Physics, 1968, 5, 354-358 . ... Proc. 9th European Meeting on Solar Physics "Magnetic Fields and Solar Processes", Florence, Italy, 12-18 September 1999 (ESA SP-448, December 1999), pp. ... Some fractal properties of solar magnetic fields . ... Some structural properties of solar magnetic fields . ...

... Credit: GALEX Team , Caltech , NASA Explanation: Intriguing galaxy pair M81 and M82 shine in this full-field view from the orbiting GALEX observatory. GALEX - the Galaxy Evolution Explorer - scans the cosmos in ultraviolet light , a view that follows star formation and galaxy evolution through the Universe . Near the bottom, magnificent spiral galaxy M81 , similar in size to our own Milky Way, shows off young stars in winding spiral arms. ... Bright Spiral Galaxy M81 from Hubble . ...

... 2004 December 30 . M81 and M82: GALEX Full Field . Credit: GALEX Team , Caltech , NASA . Explanation: Intriguing galaxy pair M81 and M82 shine in this full-field view from the orbiting GALEX observatory. GALEX - the Galaxy Evolution Explorer - scans the cosmos in ultraviolet light , a view that follows star formation and galaxy evolution through the Universe . ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ...