... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. September 5, 1999 . The Universe Evolves . ... Explanation: Scroll right and watch the universe evolve. Above is a computer simulation depicting the evolution of our entire universe. ... By comparing different computer simulations to reality , we might be able to better tell what kind of universe we live in . ... About APOD > . ...

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• APOD: June 30, 1998 - The Universe Evolves

Astronomy Picture of the Day . ... 30.06.1998 . ... The Virgo Consortium Explanation: Scroll right and watch the universe evolve. Above is a computer simulation depicting the evolution of our entire universe. ... The largest slice of the universe actually surveyed is simulated to the vertex's right. ... By comparing different computer simulations to reality , we might be able to better tell what kind of universe we live in . ... June 1998 . ... Publications with keywords: simulation - universe . ...

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• Journal "Peremennye Zvezdy"
• Астронет > The Universe Evolves

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

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A very important stage in a story of formation of any new science is the shift from discussion of situation which are possible but do not occur in practice due to some reason to recognition of real phenomena of interest. ... We suggest to consider computer viruses as this new specific form of life which is coming in the contact with our form of life. ... Computer life has been created by human being, the role of independent evolution of computer viruses seems to be still negligible. ...

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STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Support . ... Become a Meade Dealer . ...

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• Meade Instruments - Telescopes, Solar Telescopes, Binoculars, Spotting Scopes
• StarNavigator Series - Telescopes - Products
• Series / Meade Instruments

... Stellar cinders . Born-again stars . ... Heavyweight Stars . ... What will happen inside the Sun and why? ... These are questions about "stellar evolution", the history of stars as they are transformed by nuclear processes deep inside. ... Most of what we know about stellar evolution comes from computer models of stars. ... We learn about the evolution of high-mass stars from HR diagrams of young galactic open clusters, and the evolution of low-mass metal-poor stars from old globular clusters. ...

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• All Ireland Computer Grid
• Astronomy Research Themes : Stellar Evolution
• EVOLUTION MODELS

... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Late Stages of Stellar Evolution . Welcome to the home page of the Late Stages of Stellar Evolution" We are a research group which operates within the Astrophysics Group of the Australia Telescope National Facility. ... To investigate the late stages of stellar evolution and in particular the role of stellar mass-loss in the evolution of asymptotic giant branch stars, proto-planetary nebulae and extremely massive stars. ...

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• Studying Galaxy Evolution: A Galaxy Zoo Conference
• Links for Stars
• Evolutionary Paths in Galaxy Morphology

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

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• Astronomy 123 Spring 1996
• Astronomy HyperText Book: Stellar Clusters
• Astronomy HyperText Book

Next: Introduction . Binary Evolution in World Wide Web . ... Sternberg Astronomical Institute . ... We present a WWW-version of the Scenario Machine - a computer code designed to calculate the evolution of close binary stellar systems. The Internet users can directly access to the code and calculate binary evolutionary tracks with parameters at the user's will. ... More possibilities for Internet users are intended to become available in the near future. ... Normal star evolution . ...

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• Effect of sources evolution on
• Evolution of the double neutron star merging rate and the cosmological origin
• Evolution of the Double Neutron Star Merging Rate andthe Cosmological Origin of

The computed band passes. ... The interim correlator input is filtered by 8 analog filters (50 Mhz wide at the 260 Mhz IF... one for each sub correlator). ... For bandwidths of 25 Mhz and below the real data stream is digitally down converted to complex samples I, Q streams. ... The Top figure is the halfband filter bandpass computed from the filter coefficients. ... The computed filter has aliased power, extra IQ filtering, and two applications of the filter on the resulting real bandpass. ...

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• rotaPlatToSky
• pntErrVsPlatformMotion
• GALFA System Description

A Test of Galaxy Evolutionary Models Via Angular Sizes M. Im S. Casertano, R. E. Griffiths, & K. U. Ratnatunga (The Johns Hopkins University) The relationship between angular size, magnitude, and redshift of faint galaxies is explored as a potential tool to distinguish between different galaxy evolutionary models. ... The mild lumi­ nosity evolution model predicts more luminous galaxies of large angular size at high redshift, as does a standard no evolution model. ... 25) with redshift higher than z ? ...

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• Starburst and Galaxy evolution
• User Interfaces for Design Systems
• Baltimore-Washington Starburst Series

... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Cosmic Adventures . ... Cosmic evolution in a computer . ... V irgo Consortium astrophysicists used a 25-terabyte databank to create a computer simulation showing cosmic structure's evolution. ... Get instant access to subscriber content on Astronomy.com...

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• Universe in a computer | Astronomy.com
• Besides computer simulations, what evidence do astronomers have to support the

... Archives . ... When it comes to survey, the first thing comes in my mind is the census packet although I only saw it once (an easy way to disguise my age but this is true) but the questionaire layouts are so carefully and extensively done so as to give me a strong impression. Such survey is designed prior to collecting data so that after collection, data can be analyzed according to statistical methodology suitable to the design of the survey. ... Chandra Blog . ... SAMSI AstroStat Prog. ...

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• The AstroStat Slog block design
• The AstroStat Slog scatter plot
• The AstroStat Slog references

... Galaxy Evolution home . ... The origin and evolution of radio sources . Radio sources and their environments . ... We are investigating how this interaction effects galaxy evolution in general as well as the feedback effect of the radio source on its host galaxy and AGN. ... One direct observational manifestation of this interaction is the existence of extended regions of emission-line gas which show a clear spatial relationship to the radio source itself. ...

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• Astrophysics Group Work begins on the world?s most powerful radio telescope
• Galaxy Evolution: Computing
• Galaxy Evolution: Cosmological evolution of star formation

home education > activities . ... Quick math activity that asks students to calculate scale models of a binary star system with a black hole in it. [h] . ... Students use a radiometer and a light bulb with a dimmer switch to make connections between the temperature, color, and radiation output of a star. ... This demonstration, similar to the above, from the Exploratorium Snack-book of science activities, lets students demonstrate how molecules scatter light and change the colors of the beam. [m,h] . ...

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• ASP: Cosmology: The Origin, Evolution & Ultimate Fate of the Universe
• ASP: An Ancient Universe - Changes in Stars
• ASP: Stellar Evolution (a la Chez Stella)

Chiaki Kobayashi, Ralph Sutherland How galaxies did form and evolution? - to answer this unsolved problem, we are simulating the formation and evolutionary history of galaxies in the Universe, including star formation, supernovae feedback, and chemical enrichment. Comparing the spacial distribution of elements within galaxies with observations, we will examine fundamental physical processes that drive galaxy formation. ... COALA : Universe Galaxy AGN Star Planet ...

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• CHIAKI's Research
• CHIAKI's Introduction
• Observational Techniques: Computer Notes

Astronomical Data Analysis Software and Systems VII ASP Conference Series, Vol. ... Quality system management of computer workstations for astronomy can be achieved with relatively small manpower requirements, if the right cost-effective administrative design decisions are made. ... What is Quality System Management? ... The system is designed so that one doesn't depend on four or more hosts, (such as a software server, cpu server, data file server, font server, etc.) to get work done. ...

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• Cost-Effective System Management
• Improvements in Filter Design for Removing Galactic ``Cirrus'' from IRAS Images
• ADASS 2003 Conference Proceedings

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

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We have designed the laboratory model of static Fourier spectrometer for onboard usage for spectral study of atmosphere and ionosphere. The gain of model is to simulate onboard FS which will not have any moving elements (all its optical elements will be mounted at fused quartz monolithic construction), to compare experimental results with theoretical estimations and to measure MTF of CCD array. ... This fact connected with low frequency response of CCD array due to small format of it. ...

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• A computer controlled low light photometer for nightglow observations
• Lunar physical observations. Explanations for Computer Ephemeris.
• Lunar pericenters. Explanations for Computer Ephemeris (DE200/LE200).

The HTML document type was designed by Tim Berners-Lee at CERN as part of the 1990 World-Wide Web project. In 1992, Dan Connolly wrote the HTML Document Type Definition (DTD) and a brief HTML specification. ... Mosaic pioneered the addition of in-line images, image maps, nested lists and fill-out forms (derived from work on HTML+). ... Particular thanks are due to: . ... Mike Knezovich; Spyglass, Inc.; mike@spyglass.com . ... Eric W. Sink; Spyglass, Inc.; eric@spyglass.com . ...

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• Companies