... 21.11.2007 . ... Credit: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight , CFHT Explanation: The spherical coma of Comet Holmes has swollen to a diameter of over 1.4 million kilometers, making the tenuous, dusty cloud even bigger than the Sun . ... In this sharp image, recorded on November 14 with the Canada-France-Hawaii Telescope, stars are easily visible right through the outer coma , while the nucleus is buried inside the condensed, bright region. ... Publications with keywords: nucleus . ...

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• Астронет > Expansive Comet Holmes
• Journal "Peremennye Zvezdy"
• Астронет > The Great Basin on Tethys

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• Astrosib - Telescopes of Ritchey-Chretien system - RC400
• Astrosib - Telescopes of Ritchey-Chretien system - RC500

. ZnSe:Fe and ZnSe:Cr . Structure . Cubic (sphalerite type) . Growth method . HPVB or HPVZM . Density . 5.3 g/cm 3 . Melting point . 1525 o C . Max. single crystal diameter/length: . 38 30-40 mm . Surface quality (for polished) . 40/20, R a <0.01 (um), R z <0.05 (um) . Application field . Passive modulators (absorbers) . ZnSe:Fe . Absorption spectra of ZnSe:Fe and ZnSe:Cr . ZnSe:Cr . Absorption in ZnSe:Cr on concentration . Material Safety Data Sheet .

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• Cadmium Tungstate (CdWO4)
• SPECIALITY 05.16.01 -б METAL SCIENCE AND HEAT TREATMENT OF METALS SUPPLEMENTARY
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Gravitational four-fermion interaction and dynamics of the early Universe I.B. Khriplovich, A.S. Rudenko Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia October 2013 According to common beliefs, present expansion of Universe is result of Big Bang. Quite popular idea is that this expansion had been preceded by compression with subsequent Big Bounce. ... Its energy density is = n4/3, is numerical factor, n1/3 is typical energy per particle. ... Solution of FLRW equations. ...

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... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Towards a direct measurement of the expansion history of the Universe . ... Science Users Information . ... Observing with ESO Telescopes . ... Science Software . ... ESO Science Newsletter . ... The E-ELT will allow us, for the first time, to perform a direct and dynamical measurement of the expansion history of the Universe. ... Return to list of thesis topics . ...

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... Posts tagged ?spherical hormonic expansion? ... Cosmic Microwave Background Statistics for a Direction-Dependent Primordial Power Spectrum by A. R. Pullen and M. Kamionkowski . ... Statistically speaking, the most interesting part is their construction of the minimum-variance estimators for the coefficients of a spherical-harmonic expansion of the direction-dependence of the primordial power spectrum. Tags: CMB , minimum variance , power spectrum , spherical hormonic expansion , wavevector . ...

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• Disk Expansion and Absorption Line Profiles

spaceweb@oulu.fi - last update: 4 September 1998, 1010 UT (RR) . The expansion phase starts the active part of the substorm process. ... Start of the phase is called the onset of the substorm. ... Recently McPherron and Hsu (ICS-4 meeting, 1998) advocated a concept of "main substorm onset" to deal with observations of multiple onsets. ... Aggson, T. L., J. P. Heppner, and N. C. Maynard, Observations of large magnetospheric electric fields during the onset phase of a substorm, J. Geophys. Res. ...

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Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Big Bang Expansion . Forum List | ... Post Message | ... I keep hearing about the big bang theory and how its expansion is speeding up instead of slowing down. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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This table gives various engineering material properties listed alphabetically. ... Density . ... Aluminum 2024-T3 . ... Aluminum 3003 . ... Aluminum 6061-T6 . ... Aluminum 7079-T6 . ... Copper - pure . ... Gold - pure . ... Lead - pure . ... Nickel - pure . ... Silver - pure . ... Aluminum 2017 . ... Aluminum 99.996% . ... Heat capacity . ... Heat of combustion . ... Heat of fusion . ... Heat of vaporization . ... Heat transfer coef. ... Thermal Conductivity . ... Thermal expansion coefficient . ...

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... 36+54 PIN EDGE CONNECTOR at the computer. ... Red Bit 0 . ... GND . Digital Ground . ... Blue Bit 4 . ... Green Bit 7 . ... Video Blank . ... Ground . ... Printer Port Data Bit 0 . ... Audio Ground . ... Reserved for future expansion . ... Note: Do not mix analog & digital grounds. ... Amiga 4000 User's Guide from Commodore . ...

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... 2001: . The distances to 50 galaxies in the vicinity of three most nearby galaxy clusters were measured. The radius of the "zero velocity sphere", isolating each group from the cosmological expansion is in the range from 0.95 to 1.25 Mpc for these groups, leads to the estimates of the total mass of groups ranging from 1.2 to 2.7 trillion solar masses. These results agree with the value of the mean matter density in the Local Universe from 0.05 to 0.10 in critical density units. ...

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• important11-15_en

... Tonight's Sky . ... The Magazine . News . Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... expansion rate . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

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• How did astronomers discover that the expansion of the universe was
• Why cosmic expansion is speeding up | Astronomy.com
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... Energy Levels . ... and Bohr's Model . ... Expansion of . Bohr's Model . ... S-7.The Sun's Energy . ... They noted that atoms like sodium were somewhat like hydrogen, since their chemical activities implied that just a single electron was involved. ... Presumably, this shifts the energies of the levels--though no one could calculate those shifts. ... In chemical elements with many electrons (like sodium), the outermost electrons could be made to jump from one energy level to another. ...

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• Space Research Institute (IKI) Seminar

... 8, ``Celestial Mechanics'', 2002 On convergence domains of expansions of disturbing function of the planetary three--body problem in powers of eccentricities V. G. Sokolov Pulkovo Observatory, St. Petersburg, Russia The problem of convergence of the expansion of the disturbing function R in power series has long history [1--4]. ... Samoilova--Yakhontova N. S. On convergence of the expansions of the per­ turbing function in powers of eccentricities, Bull. ...

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• Values of asteroid masses

Existing studies of the atomic hydrogen gas content in distant galaxies, through the absorption of the 21-cm line, often infer that the total column density is anti-correlated with the linear extent of the background radio source. We investigate this interpretation, by dissecting the various parameters from which the column density is derived, and find that the relationship is driven primarily by the observed optical depth, which, for a given absorber size, is anti-correlated with the linear size. ...

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• Miscellaneous Analysis Tasks

In this method the fields outside and inside a particle are represented by expansions in term of proper basis functions (practically always the vector spherical harmonics). Since the particle surface does not coincide with the coordinate surface, it is impossible to satisfy the boundary conditions exactly, and the expansions are limited by a finite number of terms, and the boundary conditions are considered in a finite set of points (matching points). ...

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• Model realization and some results
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• T-matrix method (EBCM)

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil †А la une Expansion de lтАЩUnivers : pourquoi elle acc†йl†иre . ... Expansion de lтАЩUnivers : pourquoi elle acc†йl†иre . ... Pourquoi la forme des galaxies varie-t-elle ? ...

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Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

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Microsymposium 40, abstract 78, 2004 (A4 format) A TREATMENT OF DATA BANK OF MORPHOLOGIC CATALOGUE OF MERCURIAN CRATERS. ... Coordinates of craters in the catalogue are changed in accordance with [2] new data of Mercury"s North Pole. A treatment of data bank is fulfilled with the use of software in regime of "client-server" on the choice of ensemble of the objects, compiling maps of density distribution of craters. ... Flat floor of craters on Mercury is met often than on the Moon. ...

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• http://selena.sai.msu.ru/Rod/Publications/ms38/ms035.pdf
• Morphological Catalogue Of The Craters Of Mars

... IAU planet classification Observing with a Telescope Large Scale Structure The observables: Local Group (size 1 Mpc) Virgo cluster (size 2+ Mpc) Virgo supercluster (size ~33 Mpc) Voids (size ~ 10-150 Mpc), Walls and sheets, aka filaments (size ~ 50-80+ Mpc) 1 parsec The nearest star is 1.2 parsecs away (Proxima Centuri). ... Virgo supercluster Voids, Sheets Filaments The Virgo Cluster is a cluster of galaxies at a distance of about 18.0 Mpc away in the constellation Virgo. ...

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