... 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. ...

Еще в разделе: (Показать все результаты (>390) - zebu.uoregon.edu/ )

• Formation of the Elements
• Astronomy HyperText Book: Fusion Sequences in Stars

What happens to a star heavier than five solar masses? ... Stars about ten solar masses probably behave like our five solar mass star until they reach the end of core-helium burning. ... The Crab nebula was formed after a massive explosion ripped a star apart in 1054. ... Today, the glowing outer layers of the star are still rushing away from a tiny star in the centre. ... An incredible explosion rips through the outer layers of the star, releasing colossal amounts of energy in a supernova explosion. ...

Еще в разделе: (Показать все результаты (>2360) - star.arm.ac.uk/ )

• The Chemical Evolution of FGSge

... Chapter 9 Embedding JavaScript in HTML You can embed JavaScript in an HTML document as statements and functions within a <SCRIPT> tag, by specifying a file as the JavaScript source, by specifying a JavaScript expression as the value of an HTML attribute, or as event handlers within certain other HTML tags (primarily form elements). Chapter 10 Handling Events JavaScript applications in Navigator are largely event-driven. ...

Еще в разделе: (Показать все результаты (>8732) - www.arcetri.astro.it/ )

• New Features in this Release
• Arcetri Star-Formation Group Publications
• Dust evolution across the CO snowline in a protoplanetary disk

... Science Users Information > Science Activities > Science in Garching > Research Area: STELLAR STRUCTURE AND EVOLUTION . ... Reset view all 3 per page 5 per page 10 per page Sort by Title A-Z Title Z-A Date asc Date desc Research Topics Planets and Star Formation Stellar Structure and Evolution Stellar Populations Cosmology and the Early Universe Scientific Positions Faculty Fellows Scientists Students . ... Planets and Star Formation Stellar Populations Stellar Structure and Evolution Faculty . ...

Еще в разделе: (Показать все результаты (>65943) - www.eso.org/ )

• ESO - PhD Thesis Topics offered by ESO Faculty Members
• ESO - Thesis Topic: The dawn of planets: structure and evolution of
• ESO - Research Area: STELLAR POPULATIONS

... Table data are arranged in columns and rows, and stored in MIDAS files with the extension .tbl . ... An item in a table is accessed by giving its column and row in addition to the table name. The row number can either be given as an absolute value (i.e. the sequence number) or indicated by the value in a previously defined reference column. ... A table can be always expanded in the sense that its number of columns and rows is automatically increased when the allocated space is exceeded. ...

Еще в разделе: (Показать все результаты (>1819) - www.sao.ru/ )

• Old "Structure" publications
• "Structure" publications in 1996 year
• Specifying Elements in a Table

... Shustov B.M., Wiebe D.S. Dust expelling from the Galaxy ( abstract from the journal ). Astronomy Reports , 1995, 39 , 578-586 [AZh, 72 , 650-659]. Wiebe D.S., Shematovich V.I., Shustov B.M. Chemical and dynamical evolution of protostellar clouds: initial stages of collapse ( abstract from the journal ). ... Shustov B.M., Wiebe D.S., Tutukov A.V. Evolution of disk galaxies and loss of heavy elements into the intracluster medium. ... ApJ (Letters), 1998, 503 , L71-L74 ( astro-ph/9806155 ). ...

Еще в разделе: (Показать все результаты (>46) - www.inasan.rssi.ru/ )

• Основные публикации Дмитрия Вибе

... So at T 10 at T=10 10.5 (t 0.2s) 10.5 (t = 0.2s) (t 0.9s) So at T~10 10.14 End up with mainly protons, neutrons and electrons (some neutrinos) when Universe is 1 second old With ratio of N/P set as Neutrons decay with half-life of 887 seconds Formation/Destruction of Deuterium Neutrons converted to D at roughly 200s From Saha equation (but Neutron Except those neutrons that decay .. ... A bit less 28%*exp(-100s/900s) =24% when one takes into account neutron decay.. ...

Еще в разделе: (Показать все результаты (>613) - www.mso.anu.edu.au/ )

• COALA - Computational Astrophysics Laboratory
• CHIAKI's Research
• COALA - Cherie Fishlock

This document explains values, tables and other matters on solar physics computing pages. ... is040423.ete : SAHA-S tables, interpolation values: T, rho, X. Z is fixed at 0.02. See reference above. opal2005.etf : OPAL EOS, interpolation values: T, rho, X, Z. Downloaded from OPAL site , marked there as "2005", seems to be unpublished. opal2001.etf : OPAL EOS, interpolation values: T, rho, X, Z. Rogers F.J., Nayfonov A. Astrophys. ... The following values can be calculated: . ... dimensionless . ...

Еще в разделе: (Показать все результаты (>3818) - crydee.sai.msu.ru/ )

• Solar modeling input physics (thermodynamics, opacity, nuclear reactions)
• Heliophysics, Internal structure and seismology
• ApSA courses

... Tonight's Sky . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... How the Big Bang forged the first elements . ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Еще в разделе: (Показать все результаты (>6026) - www.astronomy.com/ )

• elements | Astronomy.com
• What is the heaviest element that astronomers can detect? | Astronomy.com
• Does the time it takes different methods to create all the elements coincide

Next: Radiopulsars as Sources of Up: Cosmic Rays and Evolution Previous: Cosmic Rays and Evolution . Presently, there is little doubt that galactic CR can be generated at rapidly expanding shock fronts produced by supernova explosions. ... Statistical properties of radiopulsars in our Galaxy indicate a formation rate of NS of about 1 per 10-20 years in the present cosmological epoch, while direct astronomical observations have so far not detected supernova explosions at this high rate. ...

Еще в разделе: (Показать все результаты (>627) - xray.sai.msu.ru/ )

• Effect of sources evolution on
• Parameters of binary compact star evolution
• Initial parameters of compact stars

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Stars are essential to life on Earth. ... describe the processes involved in stellar formation . ... explain the concept of star death in relation to: . ... Solar Mass Star Death . ... Stellar Evolution Links . ... The Life & Death of Stars ....

Еще в разделе: (Показать все результаты (>16460) - www.atnf.csiro.au/ )

• Late Stages of Stellar Evolution
• Structure and Evolution of Galaxies
• Astro Project: Structure and Evolution of Galaxies

OptInt PmWiki : Pm Wiki / Site Page Actions . ... item rel=nofollow class=browse accesskey='$[ak_view]'% [[{*$FullName} | View] ]] * %item rel=nofollow class=edit accesskey='$[ak_edit]'% [[{*$FullName}?action=edit | Edit] ]] * %item rel=nofollow class=diff accesskey='$[ak_history]'% [[{*$FullName}?action=diff | ... Later lines use link targets like {*$FullName}?action=edit which says to go to the currently displayed page and start editing it. ... Note that any Group can have a Page Actions ? ...

Еще в разделе: (Показать все результаты (>1665) - www.mrao.cam.ac.uk/ )

• OptInt PmWiki : PmWiki / Available Actions
• OptInt PmWiki : Site Page Actions
• OptInt PmWiki : Available Actions

by I.M. Chertok, V.V. Fomichev, A.A. Gnezdilov, R.V. Gorgutsa, V.V. Grechnev, A.K. Markeev, R.W. Nightingale, and D.E. Sobolev . Fig. 2. Inverted TRACE images at 195 illustrating development of the EUV post-eruption arcade with the well-organized loop, two-ribbon, and spine structures. Note that the exposures have been rescaled to the same peak intensity to show the evolution of the bright elements. The field of view is 220.5 by 182 Mm. Back to paper .

Еще в разделе: (Показать все результаты (>630) - www.izmiran.rssi.ru/ )

Welcome to the Starburst and Galaxy Evolution website.

Еще в разделе: (Показать все результаты (>16151) - www.stsci.edu/ )

• Studying Proto-Planetary Nebulae
• HST this week: 064
• Roelof's Presentations

... Gas in Thermodynamic Equilibrium Conditions. Stellar Spectrums. Physical Basis of Spectral Classification of Stars. ... The Sun. General Stellar Feature of the Sun. ... Distribution of Brightness in Solar Disc. ... Chromosphere - Observations on Limb and Disc of the Sun, Basic Elements of Structure, Spectrum, Physical State. ... Solar Corona - Observation, Structure, Spectrum, Polarization, Dynamics, Rotation, Physical Condition. ... Interstellar Dust. ... Two Groups of Big Planets. ...

Еще в разделе: (Показать все результаты (>93) - space.univ.kiev.ua/ )

• Theoretical Astrophysics
• Solar Physics
• Spherical and Practical Astronomy

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ... d) The Age of the Chemical Elements . ... Some isotopes (forms of the element with different numbers of neutrons in the nucleus) of these elements are radioactive; they change into other isotopes at a rate that can be measured accurately in the laboratory. ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

Еще в разделе: (Показать все результаты (>1189) - www.astrosociety.org/ )

• ASP: The Biggest Bang of Them All
• ASP: Cosmology: The Origin, Evolution & Ultimate Fate of the Universe
• ASP: The Faint Young Sun Paradox

... Institutes of Chernogolovka . The largest of all the scientific institutions of the center is the Institute of Chemical Physics in Chernogolovka , where fundamental problems of chemical physics are studied: kinetics and mechanisms of chemical and biological processes; processes of combustion, explosion, and polymerization; and mechanisms of elementary reactions involving high energy particles. ... Developments and Technologies . ...

Еще в разделе: (Показать все результаты (>1308) - www.issp.ac.ru/ )

• Astronomy: Olympiad of Scientific Centres: Institutes of Chernogolovka
• X-Ray Structural Analysis
• LPCBC: Abstract 3_1

Stellarium 0.12.3 . ... Classes . ... StelShortcutMgr Class Reference . ... voidљ . ... loadShortcuts (const QString &filePath, bool overload=false) . ... addGuiAction (const QString &actionId, bool temporary, const QString &text, const QString &primaryKey, const QString &altKey, const QString &groupId, bool checkable=true, bool autoRepeat=false, bool global=false) . ... if true, if a shortcut in the file already exists, replace its keys with the ones in the file. void StelShortcutMgr::loadShortcuts . ...

Еще в разделе: (Показать все результаты (>2237) - astro.uni-altai.ru/ )

• Stellarium: Stellarium Developers Documentation
• Stellarium: core/planetsephems/calc_interpolated_elements.h Source File
• Stellarium: TimeZoneConfiguration Class Reference

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . ... Meade Series 5000 HD-60 9mm 6-Element Eyepiece (1.25") . ... Meade Series 5000 9mm HD-60 6-Element Eyepiece, #07732 (1.25"). The latest advancement in the Meade Series 5000 eyepiece series offers a large 60 apparent field of view and a flat field of view which is tack sharp right to the edge. ... Meade Series 5000 Pl ssl Eyepieces offer a very wide field-of-view, with pinpoint edge of field sharpness and contrast. ...

Еще в разделе: (Показать все результаты (>2471) - www.meade.com/ )

• Meade Series 5000 HD-60 6.5mm 6-Element Eyepiece (1.25")
• Meade Series 5000 HD-60 12mm 6-Element Eyepiece (1.25")
• Meade Series 5000 HD-60 4.5mm 6-Element Eyepiece (1.25")

... Листок 1 (40K) | Листок 2 (31K) | Листок 3 (30K) ] . Листок 1 (41K) | ... Односеместровый курс является введением в теорию гамильтоновых структур на эволюционных дифференциальных уравнениях. Первая часть курса посвящена классической конечномерной пуассоновой геометрии (гамильтоновой механике). ... Теорема Дарбу. ... Интегрируемые гамильтоновы системы. ... Деформации и гамильтоновы когомологии. ... Теорема об одной строчке: вариационный комплекс. ...

Еще в разделе: (Показать все результаты (>949) - www.mccme.ru/ )

• Elementary courses
• Laminations and group actions in€аdynamics
• Qualitative properties of reaction-diffusion equations (Spring 2009)