... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...

Next: PULSATION PROPERTIES Up: EXTREME HELIUM STARS: PULSATION Previous: EVOLUTION MODELS . ... These include a detailed comparison between models which predict evolution tracks and surface composition for a given stellar mass and accurate observations of stellar compositions and dimensions. ... Stellar pulsations provide much more powerful tools for determining stellar masses. ... Next: PULSATION PROPERTIES Up: EXTREME HELIUM STARS: PULSATION Previous: EVOLUTION MODELS Simon Jeffery . ...

This all-sky image, constructed from 2 years of observations by NASA's Fermi Gamma-ray Space Telescope, shows how the sky appears at energies greater than 1 billion electron volts (1 GeV). Brighter colors indicate brighter gamma-ray sources. ... A diffuse glow fills the sky and is brightest along the plane of our galaxy (middle). Discrete gamma-ray sources include pulsars and supernova remnants within our galaxy as well as distant galaxies powered by supermassive black holes. ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

Main Program Travel Where to go in Moscow Information . ... The 2014 year marks the 100th anniversary of Yakov Zeldovich . ... John Carlstrom (University of Chicago) . ... Lyman Page (Princeton University) . ... The conference will be held at the Space Research Institute (IKI) in Moscow, Russia, on June 16-20, 2014 . ... International Conference: Cosmology and High Energy Astrophysics (Zeldovich-90) 20-24 Dec 2004, Moscow, Russia . ... 2014 Space Research Institute, Moscow Русская версия ...

... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... A service of: LHEA at NASA / GSFC . ... Publications with keywords: planets - Earth - Gliese 876 . Publications with words: planets - Earth - Gliese 876 . ... Hurricane Paths on Planet Earth . A Dark Earth with a Red Sprite . Happy People Dancing on Planet Earth . Looking Back at an Eclipsed Earth . ... All the Water on Planet Earth . ... All publications on this topic >> ...

. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1997/08 Japan (Kyoto, Nara) :: 18/08 Higashi-Honganji temple . Up . << Prev . Another view. Myself included. Next >> . Album created by album generator from Marginal Hacks by David Madison on Wed Jun 5 20:38:36 2013 .

... 2014 February 3 . Lunar Time Lapse Panorama including Yutu Rover . ... Explanation: Where has the Yutu rover been on the Moon? ... Because it uses solar power , the mechanical Jade Rabbit goes into sleep mode to endure the two-week long lunar night. Pictured above is a digitally created time-lapse composite panorama showing the region surrounding the Chang'e 3 lander , capturing the desk-sized rover in three positions. ... Organize Your Universe: Free APOD 2014 Calendar in PDF format . ...

home news . SEARCH ASP SITE: Match ALL words Match ANY word . ... Beginning in 2005, all conference proceedings published by the ASP Conference Series during 2004, and all future volumes, will include full text electronic access. ... Visit the e-Books site for select free preview volumes . ... Organizers of upcoming conferences who wish more information about publishing their proceedings through the ASP Conference Series should contact Interim Managing Editor J. Ward Moody at jmoody@byu.edu . ...

... Natalya V. Raguzova and Sergei B. Popov . ... We present a compilative catalogue of Be/X-ray binaries and candidates in the Galaxy and in the Large and Small Magellanic Clouds. This catalogue contains 160 sources and provides information on names and spectral types of optical components, distances, on spin characteristics of neutron stars, and on orbital and X-ray properties of binary systems. ... Be/X-Ray Binaries and candidates in the Galaxy . Galactic sources: comments to the Table 1 . ...

... INTERCOSMOS 19 . ... Bibliography . ... 1997 . ... Phys. - 1997. ... Kiraga Z., Klos Z., Rothkaehl H., Zbyszynski Z., Oraevsky V.N., Pulinets S.A., Prutensky I.S. Estimation of electron density of ionospheric plasma using wave, impedance and topside sounder data // Adv. Space Res.- ... 1998 . ... Res. ... Phys. - 1998. ... 1999 . ... Pulinets S.A., Benson R.F. Radio-frequency sounders in space // Review of Radio Science, ed. by W. Ross Stone, Oxford University Press, Chapter 28, 1999, p. 711-733. ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... Top Attractions of Russia . ... We sincerely hope the situation will improve and we are planning to include these regions as soon as it becomes possible. ... Southern Urals (including Bashkir State Reserve) . ... Eastern Sayan Mountains (including Tunka Range) . ... Altai Mountains (including Lake Teletskoe, Altai State Reserve, Katun Range) . ... Sub-Polar and North Urals and virgin forests of North of European Russia (including Yugyd-Va National Park and Pechora-Ilych National Reserve) . ...

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... Solar Flare Observations Using the X-ray Telescope on Hinode . ... The satellite Hinode (Solar-B), Japanese for sunrise, was launched in September 2006 on a mission to study the Sun, specifically, sunspots which give rise to powerful flares and solar storms. The origin of solar flares is a mystery scientists hope Hinode will help unravel. ... What drives solar flares and creates the Sun’s magnetic fields? ... 2017 Total Solar Eclipse . Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...

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In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...