... 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. ...

Welcome to the Starburst and Galaxy Evolution website.

... 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. ...

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. ...

... It is dark. ... Even without the structures' intense glare, your eyes take a moment to adjust to the vast scatterings of stars dazzling as diamonds on a sea of black velvet. ... A waiter you hadn't noticed puts a menu on the table. ... Oui," the waiter responds, "It is the stellar wind. ... You should be able to see them all in another moment -- the big one first and then the others. ... A second later a gap appears and, just as the waiter predicted, you see a brilliant blue white star. ...

... Galaxy Evolution home . ... The origin and evolution of radio sources . Radio sources and their environments . ... We are investigating how this interaction effects galaxy evolution in general as well as the feedback effect of the radio source on its host galaxy and AGN. ... One direct observational manifestation of this interaction is the existence of extended regions of emission-line gas which show a clear spatial relationship to the radio source itself. ...

... WORKSHOP "STELLAR ATMOSPHERES" . THE CHEMICAL AND DYNAMIC EVOLUTION OF STARS AND GALAXIES" . ... Chernomorka , Odessa , Ukraine . ... Modeling and interpretation of the stellar spectra of the usual and peculiar stars. Elemental abundances in the stars of different types and populations of the Galaxy. Chemical evolution of the stars and galaxies. ... Andrievsky S.M. (OAO ONU, Odessa, Ukraine) . ... CHEMICAL and DYNAMIC EVOLUTION STARS and GALAXIES" . ... Odessa mailto:astro@paco.odessa.ua . ...

... Briefly, the count rate at the detector from a source at a redshift z is . ... Another possible way that could lead to arising diverse peculiarities in the - distribution induced by the sources evolution is connected with a possible non-monotonic character of the star formation rate in galaxies. ... The most prominent feature of the obtained theoretical - is a notable sharp increase at low count rates due to evolutionary effects. ...

Stars form from interstellar clouds rich in hydrogen....they shine for billions of years, gradually converting hydrogen into helium....when hydrogen is exhausted, they need to find other energy sources....they expand to become giants and supergiants....low-mass stars expel planetary nebulae and become white dwarfs....high-mass stars explode as supernovae, leaving a neutron star or black hole behind. ... What can they tell us about normal stellar evolution ? ... WWW contact: webmaster@star.arm.ac.uk . ...