... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

Plasma phenomena occuring at one place in the magnetosphere also affect other locations This linkage is most pronounced between points that share the same field line, since field lines guide the motion of ions and electrons. ... It follows that the places on Earth most sensitive to distant magnetic effects are the "polar caps" , the regions around the magnetic poles. A good example is the polar aurora . ... way polar field lines . ... and to the Sun . ... Next Stop: #26H. Polar Cap--History . ...

... Aurora from Space . ... Magnetic Storms . ... The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... Why no aurora at the magnetic poles? ...

Neutral Hydrogen Absorption Measurements of Four Distant Pulsars . and the Electron Density in the Inner Galaxy . ... Abstract We have used the VLA to measure neutral hydrogen absorption and emission spectra toward four distant, low-latitude pulsars in the inner Galaxy whose spectra have not been previously recorded. ... We use the companion spectra plus all published \HI absorption spectra in the direction of each pulsar to assist in the kinematic determination of pulsar distances. ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE ANCIENT UNIVERSE . c) The Age of Light from the Most Distant Galaxies: The "Time Machine" Effect . ... Thus we are actually seeing these galaxies not as they are today, but as they were billions of years ago. ... The Universe: An Overview | ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

Astronomy Picture of the Day . The Year of Distant Supernovae . ... 31.12.1998 . ... Credit: High-Z Supernova Search Team , HST , NASA Explanation: Distant supernovae were among topics at the forefront of astronomy during 1998. ... Pictured above are several of the distant supernovae that have ignited modern cosmology . ... December 1998 . ... 1997 1998 . ... NASA Official: Jay Norris. ... Publications with keywords: cosmology - supernova . Publications with words: cosmology - supernova . ...

Blackholes2 Forum Message . ... Distant Galaxy Red Shift Caused By Time Passage Variation. ... If I were falling toward a neutron star or a black hole, a distant galaxy would seem to be accelerating toward me? ... And apparent receding distant galaxies with a red shift. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Archaeo-Astronomy talk by Betty Jo Harper in Navan Sun 8 Nov . ... Professor Robinson is one of EuropeтАЩs leading figures in observational cosmology but as well as providing new insights into the cosmological evolution of distant and dusty galaxies, Professor Rowan-Robinson has been an effective communicator of modern science, writing many popular books for a wide audience. ... Monday, 19 October 2009 20:16 . International Year of Astronomy, Ireland National Node . ...

Album : asv-album ::Travels to distant places and countries . ... 2004/08 Penza (Russia) . 2005/07 Penza (Russia) . ... 2008/07 Penza (Russia) . ... 2009/06 Rome (Italy) . ... 2009/08 Ryazan (Russia) . 2009/10 Penza (Russia) . ... 2010/08 Penza (Russia) . ... 2012/09 Penza (Russia) . ... 2013/02 Bordeaux (France) . ... 2013/07 St.Petersburg (Russia) . ... 2015/05 Muranovo, Moscow Region (Russia) . ... 2015/08 Sergiev Posad (Russia) . 2015/08 Tarkhany, Penza region (Russia) . ...

... Tonight's Sky . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... space flight . exoplanets . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Why can the Hubble Space Telescope see distant galaxies but not exoplanets? ... D espite Hubble's marvelous ability to image distant galaxies, the telescope isn't able to image extrasolar planets. Get instant access to subscriber content on Astronomy.com! ...

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... Currently, there is very little information on comets which are active beyond the orbit of Jupiter. ... Previous observations conducted by our team with the SAO RAS 6-m telescope showed that some of these comets have extended tails dissimilar to the tails of comets forming at close heliocentric distances. ... We for the first time measured the linear polarization of scattered emission for the two distant comets C/2010 S1 (LINEAR) and C/2010 R1 (LINEAR) at heliocentric distances of 5.9-7.0 au. ...

... Our Galaxy . ... Universe . ... One of the Hubble Space TelescopeтАЩs goals was to accurately observe Cepheids in the most distant galaxies known (we knew they were far away, the problem was saying just how far). ... This work is becoming ever more refined; in January this year astronomers revealed that they had identified the farthest galaxy yet seen in a Hubble image. ... Thanks to the Hubble Space TelescopeтАЩs superb observations we can say that the universe is 13.75 billion years old. ...

... This paper describes the capabilities of GIM2D, an IRAF package for the quantitative morphology analysis of distant galaxies. GIM2D automatically decomposes all the objects on an input image as the sum of a S?rsic profile and an exponential profile. ... GIM2D (Galaxy IMage 2D) is an IRAF package written to perform detailed bulge/disk decompositions of low signal-to-noise images of distant galaxies. ... The segmentation image is used by GIM2D to deblend galaxy images. ... Create a residual image. ...

Microsymposium 34, MS047, 2001 SOME PROBLEMS OF THE EVOLUTION OF ASTEROIDS ­ RUBBLE PILE. ... Evidently, we can distinguish two processes: distant interactions, where there is no direct contact between separate fragments, and close contact interactions, where the fragments collide with one another. ... Such a rubble pile with a dust atmosphere differs from a cometary nucleus only in the absence of a volatile gas component, which is usually considered the cause of the appearance of cometary dust. ...

... Star formation . ... Deep X-ray and IR study of the distant X-ray cluster XDCP J0044.0-2033 (Il Gioiello) at z=1.6 . ... The high redshift cluster XDCP0044 (z=1.6) was discovered in 2011 in the framework of the XMM Distant Cluster Project ( Santos et al. ... These results are published in тАЬ Chandra Deep Observation of XDCP J0044.0-2033, a Massive Galaxy Cluster at z > 1.5 тАЭ , by P. Tozzi et al. ... The cluster is officially known as XDCP J0044.0-2033. ...

... We found that 10 metal-poor globular clusters are greately distinguished for anomalously small masses on the "destruction rate-mass" plain. As it turned out, these poor clusters, situated 15 kpc farther from the Galactic centre, are somewhat younger than the bulk of the metal-poor globulars, and have anomalously red horizontal branches. ... At the same time, deficiency of distant massive clusters is noticeable with increasing distance from the galactic centre. ...

... Труба фазоинвертора . ... Сыр Боровский Чечил - это продукт, приготовленный из овечьего молока, ферментов, полученных из молочных продуктов. ... Цвет: белый . Размер: XXL . ... Размер: L . Артикул: 12129A-W1 018 CJGAC/COBAAЦвет: черныйСостав: натуральная кожаОписание: отделка - натуральный велюр цвет фурнитуры - светлое золото, закрывается на общую пластиковую молнию, внутри - одно отделение, в котором имеется карман на молнии, карман для мобильного телефона и открытый карман. ... Тип: Сумка . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualitГїs . ... Accueil GN-z11 : la galaxie la plus lointaine de lв?TUnivers . ... GN-z11 dГїtrГ?ne EGSY8p7 , dans le Bouvier, pour le titre de galaxie la plus lointaine jamais observГїe. В' C'est un objet un peu particulier, Гїtonnamment brillant dans cette rГїgion du ciel В', commente Jean-Paul Kneib, professeur d'astrophysique Г l'Г%cole polytechnique fГїdГїrale de Lausanne (EPFL) et spГїcialiste de l'Univers lointain. ...

... This paper ( Burke et al. 2003 ) describes the creation of one such catalogue - the Southern Serendipitous High-redshift Archival ROSAT Cluster (SHARC) survey - which covers an area of 17.7 deg 2 and consists of 32 clusters with redshifts between 0.05 and 0.7 and X-ray luminosities between 7 x 10 42 and 4 x 10 44 erg/s: the high-redshift subsample contains 16 clusters with = 0.3 and X-ray luminosities greater than 2 x 10 43 erg/s (luminosities are quoted for the 0.5 - 2.0 keV energy band). ... 1997 ...