Welcome to the Starburst and Galaxy Evolution website.

... 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. ...

... 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. ...

Amanda Karakas One of the most important research fields in astrophysics is the study of the origin of the elements. ... Asymptotic Giant Blanch (AGB) Stars: For low and intermediate-mass stars (with initial masses between about 0.8 to 8 solar masses) the most important nucleosynthesis occurs when stars evolve off the main sequence to the giant branches. ... This indicates that these stars obtained their unusual abundances via mass transfer from a previous red giant star, that has long evolved away. ...

... We suggest simple method of the selection of distant galaxies based on their radio properties. ... RC0015+0503a , RC0015+0503b , RC0015+0501 , RC0034+0513 , RC0038+0449 , RC0042+0504 . ... RC0105+0501 , RC0110+0500 , RC0117+0503 , RC0126+0502 , RC0133+0459 , RC0135+0450 , RC0137+0539 , RC0143+0505 , RC0152+0453 , RC0154+0459 , RC0159+0448 . ... RC0209+0501b , RC0213+0516 , RC0226+0512 , RC0250+0512 . ... RC0302+0456 , RC0308+0454 , RC0311+0507 , RC0318+0456 , RC0355+0449 . ...

... Figure: Massive binary evolutionary track. ... A short glance to this track is sufficient to understand that there are a lot of evolutionary scenario parameters, which affect different stages of the binary evolution. Fortunately, a very limited number of parameters has effect on the compact binary merging rate. ... The most important (and practically unique) parameter changing the galactic binary NS merging rate is the distribution of an additional (kick) velocity imparted to NS at birth. ...

CCD imaging and photometry of large BCGs subsample . For many problems connected with study both group and individual properties of blue compact galaxies (BCGs), it is important to know their photometric and structure parameters. ... For the study of BCG phenomenon it is important to probe possible relations between the main physical parameters of this galaxies such as luminosity, characteristic size, gas mass, color indexes, etc. ... 10 BCGs are very compact and hard to classify. ...

... 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. ...

Evolution of the double neutron star merging rate and the cosmological origin of Gamma-ray burst sources " , Astroph.J., 1995, v.454, 593-596 (Lipunov, V.M. Postnov, K.A. and Prokhorov M.E.) . Evolution of SupernovaЃExplosion Rates in theЃ Universe (Jorgensen H., Lipunov.M., Panchenko I.E., Postnov K.A., Prokhorov M.E.) ApJ, 1997, v.486,p.110 . ... Formation of a Gravitationally Bound Object after Binary Neutron Star Merging and GRB phenomena " (G.V.Lipunova, V.M.Lipunov). ...

... 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 | ...

... 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 . ...

... Mass loss Recipes | ... Mass Loss is the most important "driver" of stellar evolution in massive stars. ... The final goal is to predict mass loss over the entire evolution of a massive star at all cosmological epochs. ... Very Massive Stars are objects up to 300 times the mass of the Sun. ... Mass-loss rates increase dramatically when objects cross a critical Eddington Gamma factor (Vink et al. ... I have recently edited a book on "Very Massive Stars" including a mass-loss "chapter" . ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ... INTRODUCTION . ... Based on their personal beliefs, they find fault not only with biological evolution, but also with modern astronomical ideas about the age, expansion, and evolution of the universe. ... An Ancient Universe - Table of Contents . ... 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 | ...

... A2493 Date Received: 2009-Mar-09 14:20:57 Technical Page Proposal Type: General Category : Sub- Category : Observation Category : Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Galactic 60 hours Hours 30 min Observations of Li and BI: A Test Supernova Nucleosynthesis Models The abundances of lithium and boron provide important information about big-bang nucleosynthesis , ...

... Future seminars . P a s t seminars . ... Radiation-driven winds from stars and Active Galactic Nucle" . ... It is now clearly understood that the problem of mass loss is crucially important both from the point of view of it’s influence on the evolution of stars and for the explanation of physical processes and observational data in active galactic nuclei (AGN). ... Absorption of the radiation by continuum opacity is responsible for such an evolutionary significant mass loss in cold massive stars. ...

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

... Silver Blaze A racehorse disappears before an important race. ... Лезвие перочинного складного ножа Victorinox "Evolution 18" изготовлено из высококачественной нержавеющей стали. ...

... 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. ... The Hercules Cluster of Galaxies . ... Galaxies Away . ...

TALKS ST EL L E Raffaele Gratton INAF - Osservatorio Astronomico di Padova Stellar abundances and the chemical evolution of stellar systems: the Italian contribution The chemical composition of stellar syst the last few years, exciting results have and efficient spectrographs. ... Once the observations of all clusters will be completed for at least one season, we plan to better describe and model the evolution of the stellar angular momentum from the PMS to the TAMS. ...

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. ...