... 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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... This recently reintroduced area of research at the Observatory continues a tradition established at the Observatory by E.J. Opik , focusing on problems involving the origin and evolution of comets , their dynamical transfer from the Oort cloud and other reservoirs into short-period orbits , the interrelationship between comets and asteroids (particularly objects in Earth-crossing ... The first concerns the origin and evolution of the Oort cloud in the Galaxy. ...

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• Irregular Satellite Research
• M.D. Smith, Research Astronomer
• C.S. Jeffery, Research Astronomer

... HST . Evolution of the HST Proposal.. ... HST Peer Review Process . ... Science Blog . ... For Cycle 9 the Science Program Selection Office (SPSO) has changed the selection process to ensure that HST will continue to perform the best possible science with the best return for the astronomical community. ... Also, in past cycles the proposal selection process has worked against larger programs, which are increasingly seen as a vital part of the HST program. ... The major changes for Cycle 9 are: . ...

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• Activating Your Target of Opportunity Proposal
• Mid-Cycle Time Submission
• The Evolution Of Low Luminosity Galaxies And Faint Blue Galaxies Mini-Workshop

There are still many open questions on galaxy formation and evolution, such as e.g. the predominance of hierarchical or monolithic processes in the galaxy formation or the temporal evolution of disk metallicity gradients. ... Chemical abundances of stellar populations of different ages are essential to constrain the past history of nearby galaxies, both in terms of their past metal contents and of SFHs. ...

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• Dust evolution across the CO snowline in a protoplanetary disk
• Arcetri Star-formation Group Research Topics

Presentations at the Astro-Statistics Seminar, Stat 310, taught by Xiao-Li Meng (Harvard). ... Aneta Siemiginowska, CfA . 21 Sep 2004 . Astronomy in the Age of Space: An Overview [.pdf] This is a broad overview of astronomy as an introduction to Astrostatistics. ... We concentrate on problems related to high energy astrophysics and consider the data obtained by modern X-ray space telescopes such as Chandra X-ray Observatory and XMM-Newton. ... 05 Oct 2004 . ... 09 Nov 2004 . ... 22 Feb 2005 . ...

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• Randall Smith Research
• The AstroStat Slog Blog Archive Reduced and Processed Data
• Comments on: tests of fit for the Poisson distribution By: hlee

... Empirical and theoretical modeling of 3-D structures in the solar corona is confronted by the tremendous amount of data needed to represent phenomena with a large dynamic range both in size and magnitude, and with a rapid temporal evolution. Octree representation of the 3-D coronal electron distribution offers the right compromise between resolution and size, allowing computation of synthetic images of the solar corona. ... The time interval between images is one day. ...

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• Spatial Models and Spatial Statistics for Astronomical Data
• The OPUS Pipeline: A Partially Object-Oriented Pipeline System
• Data Processing for the Siberian Solar Radio Telescope

... 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/Psrfits
• Stellar Evolution - the life and death of stars
• ATNF Colloquium

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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• Siding Spring Survey
• COALA - Natsuko Izutani
• CHIAKI's Research

... Visible Distribution of Galaxies. ... Features of Elliptical, Lens-Shaped, Spiral and Irregular Galaxies. Galaxies with Bar. ... Distribution of Surface Brightness of Surface and Spiral Galaxies. ... Color Characteristics of Galaxies. ... Methods of Galaxies' Mass Determination. ... Hidden Mass of Spiral Galaxies. ... Features of Dark Matter Distribution in E and SO Galaxies. ... The Whole Number of Galaxies and Their Density by the Results of Observation on the 'Hubble' Space Telescope. ...

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• Publications of Astronomy and Space Physics Department
• Olexiy V. Agapitov presentations & posters
• ION AND ELECTRON ENERGY DETECTOR PAN-2

een able to make significant contributions, in particular relating to the following op en science questions: (1) the ep och of galaxy formation and their star formation history (2) the effect of environmental processes on star formation in galaxies (3) the enrichment of the intra- cluster medium from stripp ed galaxies (4) the imp ortance of dusty starbursts in the formation and evolution of galaxies High-redshift ... Stars show the sky-averaged correlation function. ...

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• http://www.eso.org/~hboffin/Astronet/Presentations/ScienceVision_Astronet.pdf
• ESO - ESO-Enews #12: March 2009
• ESO - Thesis Topic: ALMACAL: the evolution of the molecular gas in galaxies

... The (very) slow rotation of magnetic Ap stars. ... Magnetic stars in young clusters and associations. ... Magnetic fields in low-mass stars from high-resolution infrared spectroscopy. ... Magnetic field measurements of late B-type starss. ... Measurement of magnetic field of FK Com. ... Magnetic field of white dwarfs. ... The magnetic star evolution project (teleconference). ... Conference-2014 . Program . ... Laboratory for the Stellar Magnetism Study of SAO of RAS . ...

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• GRB follow-up team
• Search for distant radio galaxies in SAO

... Research . ... There is mounting evidence that AGN feedback is important in galaxy evolution. Radio-mode feedback is thought to be particularly significant because the mechanical action of the expanding lobes provides a strong coupling mechanism between AGN energy and the surrounding environment. In order to quantify this feedback, detailed models of radio lobe evolution are required. ... Cambridge, UK - Nov 2013 . PDF . Poster for Modern Radio Universe conference . ...

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• Bojan Nikolic -- Physics Research
• Astrophysics Group Galaxy Formation and Evolution
• Galaxy Evolution Over Five Decades

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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• Group for study of galaxies and cosmology, history

Proposal Identification No.: A2772 Arecibo Observatory Date Received: 2012-Sep-03 18:22:58 William E. Gordon Telescope Observing Time Request COVER SHEET Section I - General Information Submitted for Sep 1 2012. This proposal has been submitted before. ... It provides a rich new database for exploration of the magnetic field of the Galaxy, the properties of the magneto-ionic medium, the polarization properties of a vast number of extragalactic sources, and of intergalactic fields. ...

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• http://www.naic.edu/~astro/School/Talks/large_pdf/brown_future_2.pdf
• The Evolution of Galaxies Seen Through The Neutral Hydrogen Line The Evolution
• Murray Lewis

... The evolution of a binary system can be described as the movement of a point in the parameter space , constituting both physical quantities (such as masses of binary components, their radii, luminosities, orbital period, etc., independently of direct observational measurability of these values Each binary traces a path (which we will call a ``track'') in this space, in a way strictly determined by the evolutionary scenario. ... Then the fraction of binaries lying inside is expressed by . ...

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• Evolution of the Double Neutron Star Merging Rate andthe Cosmological Origin of
• Effect of sources evolution on
• Contents

... In some cases where memory space is at a premium, it is possible to tailor the configuration to remove such features as reference clock driver support, debugging support, and so forth. ... The following lines are used in this file: . ... The DEFS_LOCAL line defines global flags that apply to all machines. Ordinarily, the only flags included are the -DDEBUG , which includes the debugging code, and -DREFCLOCK , which includes basic reference clock support. ... D_INCLUDE_BSD_SOURCE . ...

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• SAI SN RESEARCH GROUP
• Scratchbuilt CHU Receiver
• Zen: snap sai

Next: What was the Up: Observational data Previous: Observational data . A certain minimum set of data is required to make observations reducible. These are the identity of the object measured; the identity of the bandpass in which the measurement was made; the time of the observation; and, for integration-type measurements, the duration of the integration. Table describes the basic table-file columns in detail. ... What was measured? ... Mon Jan 22 15:08:15 MET 1996 ...

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• "Structure" publications in 1996 year
• Introduction
• HyperLeda: example of online pipeline processing

... The SF does not contain all the information required to process the ODF with the SAS. odfingest extends the SF with data extracted from the instrument housekeeping data files and the calibration database. It creates a new summary file: the SAS ODF Summary File (SOSF). ... The user need not have write access to the ODF directory. odfingest uses the parameter outdir to learn where to write the SOSF. ... Alternatively, the name of the SOSF can be passed to odfingest with the parameter summaryfile . ...

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• XMM-Newton SAS on Mac OS X
• SAS startup thread

... Shematovich, V.I . ... Shematovich, V. I. ; Bisikalo, D. V.; Marov , M. Ya . ... Shematovich, V.I., Bisikalo, D.V., and Gerard J.-C. Superthermal particles in the planetary atmosphere. ... Shematovich, V.I., Bisikalo, D.V., and Gerard, J.-C. The thermospheric odd nitrogen photochemistry : role of non-thermal N(4S) atoms (abstract) . ... Geophys ., ... Gerard, J.C., Shematovich, V.I., and Bisikalo, D.V. Effect of hot N( 4S) atoms on the NO solar cycle variation in the lower thermosphere (abstract) . ...

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• Home page of Dmitri Wiebe

... at the IITP. 1993-1995: researcher at Moscow International Mathematical Institut. a) Mathematics: Theory of Probability, Random Processes , Mathematical Physics, Theory of Interacted Particle Systems. b) Queueing Theory: Queueing Networks , application of the Theory of Markov Processes with Local Interactions to Networks with a large number of queues, Asymptotical Properties of Queueing ... A.N.Rybko, "Stationary Distributions of Markov Processes Modelling Queueing Networks". ...

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• Dubna-2005: Evolution processes
• Young researchers' seminar in statistical physics
• Conference "Random Processes, Conformal Field Theory and Integrable Systems"