... Jay Apt (Ph.D.) . NASA Astronaut (Former) . ... PUBLICATIONS: Dr. Apt shared his images and knowledge in the publication Earth in Orbit : NASA Astronauts Photograph the Earth , written in conjunction with NASA scientists Michael Helfert and Justin Wilkinson and published by the National Geographic Society. ... From 1976 to 1980 he was a staff member of the Center for Earth & Planetary Physics, Harvard University, supporting NASA s Pioneer Venus Mission by making temperature maps of Venus from Mt. ...

... CV & PUBLICATIONS | ... Nicholls, DC, Dopita, MA, Sutherland, RS, Jerjen, H, & Kewley, LJ " Metal-poor Dwarf Galaxies in the SIGRID Galaxy Sample. ... Nicholls DC, Jerjen, H, Dopita MA, & Basurah, H. (2014) " Nebular Metallicities in Two Isolated Local Void Dwarf Galaxies ", Astrophysical Journal 780, 88 * . ... Sweet SM, Drinkwater MJ, Meurer G, Bekki K, Dopita MA, Kilborn V, & Nicholls DC, " CHOIRS H I Galaxy Groups: The Metallicity of Dwarf Galaxies" , (2014) Astrophysical Journal , 782, 35 * . ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Publications of the ASP (PASP) . ... Determining the Earth-Sun Distance Using Mars . ... For more than a century, astronomers tried to measure the average Earth-Sun distance, known as the astronomical unit (AU), by observing rare transits of Venus. ... By measuring this displacement (parallax) and knowing the length of the baseline between the two observing sites, one can determine Mars?s distance. ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

... Special Reports Giant space cloud may be powered by black holes 17:57 23 April 2007 NewScientist.com news service David Shiga An enormous cloud of roiling plasma in space may be drawing its energy from black holes, new observations suggest. Such clouds might be sources for the mysterious particles that occasionally crash into Earth's atmosphere at ultra - high speed. ... But higher energy particles in the cloud may be able to escape, he says. ...

... Role of Ionizing Radiation in the Natural History of the Earth" . The Solar system, oscillating relative the Galaxy midplane during its revolution around the Galactic center, can occasionally fall inside the gas-dust interstellar clouds, which include remnants of Supernova (SN) explosions. ... The long time stayings of the Earth inside the young SN remnants could induce mass extinctions of the highest, most radiosensitive living organisms and specific global geochemical effects. ...

... For a long time, astronomers found it very difficult to make a map of the very centre of our Galaxy, the Milky Way. ... You can imagine the Milky Way as a CD with a ball of cotton wool slotted through the hole in its centre. ... It s one the oldest and most impressive features of the Galaxy, but it was not very well understood until now. ... Cool fact : Did you know that Earth, the Sun and our entire Solar System are orbiting around the centre of the Milky Way at thousands of kilometres per hour. ...

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

... High redshift radio galaxies . ... Verkhodanov O.V., Kopylov A.I., Zhelenkova O.P., Verkhodanova N.V., Chernenkov V.N., Parijskij Yu.N., Soboleva N.S., Temirova A.V. 2000. ... Verkhodanov O.V., Kopylov A.I., Parijskij Yu.N., Soboleva N.S., Temirova A.V. "Color ages of parent galaxies of high redshift radio sources", in Proc. XV Conf. on "Aktualnye problemy vnegalakticheskoi astronomii" ("Current Problems of Extragalactic Astronomy"), Pushchino, May 25--29, 1998, printed in Pushchino Sci. ...

... E.V. Ivanov . ... webmaster@izmiran.ru . ... Ivanov E.V. Two system of large-scale organization of solar activity and their relation to quasi-biennial oscillations and oscillations with a period of 5-6 rotations in the Sun . ... Ivanov E.V. Large-scale organization of solar magnetic fields . ... Ivanov E.V. Large-scale structure of solar magnetic fields, Bulletin of the Russian Academy of Sciences, Physics, 1995, Vol. ... Solar. ... Ivanov E.V., V.N. Obridko, E.V. Nepomnyashchaya, V.N. Kutilina . ...

The Earth. ... The middle raiding of the Earth is 6371,032 km, the pole 6356,777 km equatorial - 6378,160 km. The Earth surface area is 510,2 mln km^2, 70,8% of which is the World ocean. ... According to the modern cosmogonical views the Earth was formed 4,6 - 4,7 billions years ago from the protoplanet cloud captured by the Sun. ... The Earth is conditionally divided into 3 parts: a bark a cloak and a core (in the centre). The external layer - the bark is 35 km thick. ... Above the Earth. ...

... Nezlin M. V., Polyachenko V. L., Snezhkin E. N., Trubnikov A. S., Fridman A. M. , Prediction of the vortex gas motion between galactic spiral arms from the laboratory modelling , Pis'ma v Astronomiceskij Zhurnal 1986, v.12, pp.504. ... Afanasiev V. L., Fridman A. M. , Vortex structure in the gaseous disk of the galaxy Mrk 1040 , Pis'ma v Astronomiceskij Zhurnal 1993, V. 19, pp.787-797. ... I. Evidences of wave nature of spiral structure of NGC 157. ... Back to Project Vortex. ...

... Kopylov, A.I., Kopylova, F.G. "Structure of galaxy groups and clusters and measurement of their masses", . ... Kopylova, F.G., Kopylov, A.I. "Peculiar motions of galaxy clusters and groups in the Hercules and Leo supercluster regions", . ... Kopylova, F.G., Kopylov, A.I. "Analysis of the properties of clusters of galaxies in the region of the Leo supercluster", . ... Kopylova, F.G., Kopylov, A.I. "Analysis of the properties of clusters of galaxies in the region of the Ursa Major supercluster", . ...

... Observatory . ... Conferences . ... The 7th Orlov conference "The study of the Earth as a planet by methods of geophysics, geodesy and astronomy" will take place on September 14-16, 2016 at the Poltava Gravimetrical Observatory of the S.I. Subbotin Institute of Geophysics, Poltava, Ukraine. The Conference is organized by the Main Astronomical Observatory of the National Academy of Sciences of Ukraine and the Poltava Gravimetrical Observatory of the S.I. Subbotin Institute of Geophysics (PGO). ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...

... These trajectories have an initial flight from the Earth to a large distance (of about 1.5 million km), the following passive flight to the Moon's orbit, an approach to the Moon with a decrease of an energy of a particle (spacecraft) selenocentric motion to a negative value and the temporary capture in an elliptic orbit of the Moon's satellite. ... Several trajectories of this type are determined. ... Ivashkin V. V. On optimal trajectories of space flight to the Moon in the Earth--Moon--Sun system. ...

Publication list . Structure and long-term change in the zonal asymmetry in Antarctic total ozone during spring A. V. Grytsai, O. M. Evtushevsky, O. V. Agapitov, A. R. Klekociuk, and G. P. Milinevsky // Ann. ... Ballooning perturbations in the inner magnetosphere of the Earth: spectrum, stability and eigenmode analysis A. V. Agapitov, O. K. Cheremnykh, and A. S. Parnowski (approved for print in Advances in Space Science) . ... Space Res., ...

Report on the activities of the IAU/IAG Joint Working Group on Theory of Earth Rotation JosИ M. FerrАndiz and Richard S. Gross JSR 2014, St. Petersburg, 23 September IAU/IAG JWG on Theory of Earth Rotation 2 Introduction: purpose of the IAU/IAG JWG_ThER · The International Association of Geodesy (IAG) and the International Astronomical Union (IAU) set up a new Joint Working Group on Theory of Earth Rotation in April 2013. ... Precession/Nutation (Chair: Juan Getino) 2. ...

Russian . ... Very Early Universe: inflation, generation of primordial perturbations, preheating . Very Early Universe: inflation, generation of initial perturbations, preheating . Cosmic Microwave Background Radiation: anisotropy and polarization . ... Dark Energy and Dark Matter models . High Energy Astrophysics: accretion discs, cosmic rays, gamma-ray bursts . ... Astrophysics of black holes and wormholes . ...