Mapa del Sitio . Corona solar . ... Las estructuras visibles en la corona en esos momentos sugieren que est n configuradas por campos magn ticos y, por lo tanto, que la corona est constituida por plasma. Por ejemplo, los cortos "penachos" que se elevan desde las regiones polares del Sol tienen la apariencia de la l neas de campo saliendo de una barra imantada, que sugieren que el Sol tiene, adem s de los intensos campos de las manchas, un campo magn tico global como el de la Tierra. ...

. Language [RU/EN] Search: . Home . UP . Research . Projects . Services . Info . News . Events . Personal . Archive . Ionosphere and radiowave propagation: structure . The main page . Information . Publications: . 2011 - 2015 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2000 - 2004 . 1995 - 1999 . Participation in International symposiums and conferences: . 2013 - 2015 . 2011 - 2012 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2002 - 2004 . N.V. Pushkov . 09/04/2016 23:52 MSK . webmaster@izmiran.ru .

The Sun's corona . ... For instance, short "plumes" rising from the polar regions of the Sun look very much like field lines coming out of the end of a bar magnet, and they therefore suggest that the Sun, in addition to the intense fields of sunspots, also has a global magnetic field like the Earth's. Arches above the . Sun's surface . ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona. ...

As an example for an observation of a stellar corona, a simulation of the response of RGS was performed. The input spectrum was a two component Mewe-Kaastra plasma, with solar abundance, and temperatures of 0.35 and 2 keV. ... The following image shows an intensity display of the measured spectrum with dispersion coordinate as measured in the spatial dimension on the RGS Focal Camera (RFC) along the abscissa, and the energy response of the CCDs along the ordinate. ...

... STFC Courses in Solar System Plasmas have played an important part in the early training of solar, heliospheric, magnetospheric and ionospheric physicists since the 1980s. The Introductory course, as well as providing a grounding in the theory and the most recent observations relevant to their fields, allows new PhD students and other participants to interact scientifically with each other and with the lecturers, thus strengthening the field as a whole - particularly in the UK. ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... As we close in on part of the small constellation of Corona Australis we start to see faint clouds and in the final part of the video the full glory of the dramatic star formation region NGC 6729 is revealed in a new image from the FORS1 instrument on ESOтАЩs Very Large Telescope. ...

... In the foreground of the 15 degree wide field of view, a bubble of hot plasma, called a Coronal Mass Ejection ( CME ), is blasting away from the active Sun whose position and relative size is indicated by the central white circle. ... Publications with keywords: planet - Sun - corona - pleiades - planetary alignment - coronal mass ejection - SOHO . Publications with words: planet - Sun - corona - pleiades - planetary alignment - coronal mass ejection - SOHO . ... A Prominence on the Sun . ...

Nowadays at the Department the experimental and theoretical investigations, including astronomical and ionospheric observations, active experiments with space vehicles are taking place. ... Solar Corona physics and erruptive phenomenae. ... Stellar astronomy. ... The Department has organized and put into practice more then 50 expeditions for observation of Solar ecllipces, aurorae polaris, comets, meteor streams, controlled space experiments, and also for investigations of geophysical characteristics. ...

... Archive of publications: . ... 2005 . ... S.V.Shestov , A.M.Urnov , S.V.Kuzin , I.A.Zhitnik , S.A.Bogachev , . Electron Density Diagnostics for Various Plasma Structures of the Solar Corona Based on Fe XI - Fe XIII Lines in the Range 176-207 A Measured in the SPIRIT/CORONAS-F Experiment Astronomy Letters, V. 35, No. 1, pp. ... Download in format .pdf, 747 113 B . I.A.Zhitnik , S.V.Kuzin , A.M.Urnov , I.L.Beigman , S.A.Bozhenkov , I.Yu.Tolstikhina , . ... Download in format .pdf, 422 738 B . ...

... Informazioni . Informazioni generali . Come raggiungere l'Osservatorio . ... Per le scuole . ... Amici di Arcetri . ... Vademecum per CONSIP . ... L' Osservatorio Astrofisico di Arcetri (OAA), parte dell' Istituto Nazionale di Astrofisica (INAF), ha una lunga tradizione nel campo della fisica solare, attivitГ iniziata piГ? di un secolo fa. ... email . ... INAF - Arcetri . ... Questo indirizzo email ГЕ protetto dagli spambots. Г? necessario abilitare JavaScript per vederlo. ...

Solar & Heliospheric Radiophysics of the Future T. S. Bastian NRAO · Science drivers · Observations & techniques · New instrumentation Science Issues (~10 yrs) · Magnetic energy storage and release flares and CMEs · Particle acceleration SEPs · Wave dissipation Corona/Chromosphere/Solar Wind · Space weather prediction from L. Lanzerotti Long duration flare observed on west limb by Yohkoh and the Nobeyama radioheliograph on 16 March 1993. ...

... Empirical and theoretical modeling of 3-D structures in the solar corona is confronted by the tremendous amount of data needed to represent phenomena with a large dynamic range both in size and magnitude, and with a rapid temporal evolution. Octree representation of the 3-D coronal electron distribution offers the right compromise between resolution and size, allowing computation of synthetic images of the solar corona. ... The time interval between images is one day. ...

PECULIARITIES OF QPOS OF MICROWAVE EMISSION OF THE FLARING SOLAR ACTIVE REGIONS V.E. Abramov-Maximov, G.B. Gelfreikh Central Astronomical Observatory at Pulkovo, Saint-Petersburg, Russia gbg@saoran.spb.su Quasi-p erio dic oscillations of solar coronal structures are effectively registered in particular at microwave waves. The physical nature of p erio dical pro cesses in the corona is clearly connected with plasma structures of the solar atmosphere. ...

Magnetic reconnection in coronal plasmas I.J.D Craig Depar tment of Mathematics University of Waikato Hamilton New Zealand UW, 28 May, 2010 ­ p.1/17 Why reconnection? ... How can the rate of reconnection be speeded up? ... This difficulty meant no exact reconnection solutions were discovered until the mid 1990's. Now 3D solutions separator (no-null) Even so, it is diffic rate 1/2 of energy are available that cover spine, fan and reconnection. ult to go beyond the slow Sweet-Parker (1958) release. ...

. The solar wind - the solar corona’s plasma pouring out into the interplanet space. The average speed of the solar wind particles (photons and electrons) is about 400km/sek, the particles number is several tens in 1 sm^3. Back .

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 March 12 . Atete Corona on Venus . Credit: Magellan Spacecraft Team , USGS , NASA . ... Pictured above in the foreground is 500-kilometer wide Atete Corona found in a region of Venus known as the Galindo . The image was created by combining multiple radar maps of the region to form a computer-generated three-dimensional perspective. ...

In 2007, R Coronae Borealis (R CrB) went into a historically deep and long decline. ... The evidence pointing toward a white dwarf merger or a final-helium-shell flash origin for R CrB is contradictory. ... Along with the fact that R CrB shows significant lithium in its atmosphere, this supports the final-helium-shell flash. However, the relatively high inferred mass of R CrB and its high fluorine abundance support a white dwarf merger. ...

Introduction This catalogue contains mainly the atomic data needed in the astrophysical investigations of low-density plasma. It is a revised and extended version of the "Catalogue of Atomic Data for the Rarefied Astrophysical Plasma" (Golovatyj et al. ... Low-density plasma. ... In the present study we represent only the atomic data for computation of sp ectra of low-density astrophysical plasma (most known kinds of it are gaseous nebulae), their thermal and ionization structure. ...

... Сегодня: 10 апреля 2016 г. В августе 1954 года Министерство Обороны США\Department of Defense утвердило проект создания космической разведки. ... Командование ВВС США\US Air Force санкционировало начало разработки первой американской межконтинентальной баллистической ракеты (в дальнейшем она получила название Atlas) лишь в 1951 году, причем первоначально выделило фирмам-подрядчикам смешную сумму - $0.5 млн. Три года эта программа осуществлялась ни шатко, ни валко. ...

... B.V. Somov . head of the department . ... room 80 . ... senior research felow . ... research felow . ... research fellow . ... Our department performes the following most perspective studies: . Special analytical and numerical experimental investigations of the solar plasma involved in the magnetic reconnection process at the Sun. ... Head of the seminar: Prof. B.V. Somov. ... 27 September 2013 The Solar Physics Department was visited by journalists of the leading Russian TV channel "Vesti-1". ...