... 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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• Formation and Evolution of Quasars

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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... 2007 March 5 . Illusion and Evolution in Galaxy Cluster Abell 2667 . ... Explanation: What's happening to the galaxies of cluster Abell 2667? ... To start, most of the yellowish objects in the above image from the Hubble Space Telescope are galactic members of a massive cluster of galaxies known as Abell 2667 . ... Light from this galaxy is gravitationally lensed by Abell 2667, appearing much like a distant person would appear through a wine glass. ... About APOD | ...

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• APOD: 2012 March 20 - Evolution of the Moon
• APOD: 2005 December 5 - Ice Fountains Discovered on Saturns Enceladus
• APOD: 2013 November 5 - Kepler 78b: Earth-Sized Planet Discovered

home education > resources . SEARCH ASP SITE: Match ALL words Match ANY word . ... The Universe in . ... Astronomy Education Bibliography . ... Carroll, Sean From Eternity to Here: The Quest for the Ultimate Theory of Time. ... Singh, Simon Big Bang: The Origin of the Universe. ... British physicist and science writer treats both the history and current status of cosmology; good for beginners. ... A physicist chronicles the long history of human thinking about the origin of the universe. ...

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• ASP: Family ASTRO: History and Evolution
• ASP: Responsible Exploration
• ASP: Stellar Evolution (a la Chez Stella)

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm Observations . ... Data Handling and Products . ... ESO Data . ... Studies of the Planck data set with optical and sub-mm follow-up observations give new insights about the early assembly of the first clusters, and the later evolution of their gas content as well as of their population of star-forming galaxies. ...

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• ESO - Thesis Topic: ALMACAL: the evolution of the molecular gas in galaxies
• ESO - Thesis Topic: Evolution of SN 1987A
• ESO - Research Area: STELLAR STRUCTURE AND EVOLUTION

... Luminous blue variable (LBV) stars are the most massive stars with 40-120 solar masses, which are passing the short stage of evolution losing their hydrogen envelopes before exploding as Supernovae. These are extremely rare objects, only about a dozen of the most massive LBVs are known in the Galaxy. ... In the spectral observations of stars with infrared circular nebulae, found in the Spitzer survey (24 microns), a new LBV star in the Galaxy was discovered. It was named MN112. ...

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• New LBV Discovered in DDO 68 Galaxy
• Galaxy sector, archive 2011
• Galaxy sector, archive 2010

Welcome to the Starburst and Galaxy Evolution website.

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• M3: An Ideal Laboratory for Testing Stellar Evolution and Dynamics
• HST this week: 092
• GOODS: The Great Observatories Origins Deep Survey

... Galaxy Evolution home . ... Regulating the ISM and star formation . Cosmological evolution of star-forming galaxies . The origin and evolution of radio sources . Radio sources and their environments . ... Observations of the local Universe clearly demonstrate that very active star formation phases (starbursts) are often associated with interacting and merging galaxies and that in these systems much of the short wavelength emission is absorbed by dust and re-emitted in the IR. ...

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• Galaxy Evolution: Radio sources and their environments
• Galaxy Evolution Bojan Nikolic web pages (r. 329)
• Galaxy Evolution: Regulation of the ISM and Star Formation

Next: Observational Zoo of Binaries Up: No Title Previous: Contents . In the early 1980s, our understanding of binary star evolution љ based on the pioneer work by Paczynski (1971)[ 150 ], Tutukov and Yungelson (1973)[ 195 ], van den Heuvel and Heise (1972)[ 201 ], allowed us to construct a general evolutionary scenario љ which successfully explained the genesis of well-studied normal stars and offered potential explanation for new X-ray sources discovered in space experiments. ...

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• Effect of sources evolution on
• Cosmic Rays and Evolution of Binary Systems
• Evolution of the double neutron star merging rate and the cosmological origin

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

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• Supernova 2002an in NGC 2575

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 Presentations

Nova Herculis 1991, shown in this PSPC image, is a fast, high inclination, long period nova which contains a massive white dwarf and is part of an eclipsing binary system. Novae occur as part of the evolution of a close binary system in which the stars have different masses, i.e. a main sequence star and a white dwarf. Mass is accreted onto the white dwarf which eventually ignites runaway thermonuclear reactions which blow off the outer layers of the star. ...

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• Abstract
• Arcetri Star-Formation Group Publications
• research field

... 601Artyukh A survey of compact ( q < 1") radio sources is being made with the Large Phased Array (LPA) of Lebedev Physical Institute. ... The survey of scintillating radio sources in two areas of 7C survey has enabled to detect 414 compact sources, 380 of them 92% were detect first. The scintillating source count (from observations of two areas) has confirmed the decrease of the compact radio sources density for weak flux densities, which we found from observations of the first area. ...

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• Introduction
• The Spectrophotometrical complex in Nasmyth-1 focus
• "Structure" publications in 1996 year

Proposal Identification No.: P2308 Date Received: 2007-Feb-01 21:14:15 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Pulsars Galactic 27 Hours 2.25 High-Precision Millisecond Pulsar Timing: Velocities and Evolution We request observations once a month in the LST range 17:45­20:00, for a total of 27 hours over one year, to continue timing four millisecond pulsars. ...

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• http://www.naic.edu/vscience/schedule/tpfiles/StairstagP2019tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/LazarustagP2722tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/ArchibaldtagP2472tp.pdf

... 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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• Pulsar Group Main/Home Page
• Braking Indices and Evolution
• Late Stages of Stellar Evolution: PhD project

Next: The Chemical Evolution of Up: Stellar Astrophysics Previous: Stellar Astrophysics . Simon Jeffery has used a novel camera attached to the William Herschel Telescope (WHT) to obtain the best light curves ever obtained for pulsating subdwarf B stars. These stars pulsate non-radially in several modes with different frequencies and enable astronomers to establish their overall properties and internal structure with unusual precision. ...

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• The Chemical Evolution of FGSge
• EVOLUTION MODELS
• Serendipitous Discovery of a Double Helium-rich Subdwarf

... Triton: Neptunes Largest Moon . ... So, looking toward the Sun, extreme ultraviolet cameras onboard STEREO B were able to record a stunning movie of a lunar transit (aka solar eclipse), as the Moon tracked across the solar disk. ... Stars, Dust and Nebula in NGC 2170 . ... Visible above are red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. ... APOD: 2007 February 24- X rays and the Eagle Nebula . ...

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A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

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• Field-aligned potential drops [Oulu]
• Jupiter's Moon Amalthea
• The Acceleration of the Aurora

... The evolution of magnetic fields in OB-type stars from the study of open clusters of different ages . ... Wade G. A. The MiMeS Project: Magnetism in Massive Stars . ... Polosukhina N., Shavrina T., Drake N., Kudryavtsev D. Smirnova M. New results of the spectral observations of CPstars in the Li I 6708? spectral region with BTA telescope of SAO RAS . ... Magnetic Stars-2010 . ... List of participants . List of reports . ... Laboratory for the Stellar Magnetism Study of SAO of the RAS . ...

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• Laboratory for the Stellar Magnetism Study of SAO of the RAS - Physics and
• AGB and Post-AGB Evolution: Structural and Chemical Changes
• Laboratory for the Stellar Magnetism Study of SAO of the RAS - Home

... 8, ``Celestial Mechanics'', 2002 Dynamic evolution of resonance orbits of exoplanets in system 47 Uma B. R. Mushailov, A. A. Kaloshin Sternberg Astronomical Institute, Moscow, Russia The orbits of the major and minor planets of the Solar system indicate that their dynamic evolution is essentially influenced by the effects of orbital reso­ nance interactions. ... One may expect that the orbital resonances can exist not only in the Solar system, but also in other star systems. ...

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• http://www.ipa.nw.ru/conference/ach2009/ach2009_resolution.doc
• http://www.ipa.nw.ru/conference/2002/sovet/PS/VASHKOV.PS
• http://www.ipa.nw.ru/conference/2002/sovet/PS/SOKOL_L.PS