... 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 . ...