... The HI - Star Formation Connection . ... Coffee . ... Dark Galaxies and Dark Matter . ... HI in Normal Galaxies . HI and Galaxy Evolution over Cosmic Time . ... How Galaxies Accrete Gas . ... The Billion Galaxy Survey . ... Searches for Dark Galaxies . ... Evidence for Dark Matter in Galaxies . HI in Galaxies: Overview . ... Open Questions in Normal Galaxies . ... Starburst galaxies and BCDs . ... HI Rich Galaxies . ... Open Questions in HI and Galaxy Evolution . HI and Galaxy Evolution . ...

... Bojan Nikolic web pages (r. 329) . Galaxy Evolution . ... By comparing narrow band spectral line indices with recent models of simple stellar populations (SSPs) we investigate trends in the star formation history as a function of galaxy mass (velocity dispersion), density of environment and galactic radius. ... MJD of the SDSS observation of the galaxy . ... The history of star formation and mass assembly in early-type galaxies . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

... Science Users Information > Science Activities > Science in Garching > Research Area: COSMOLOGY AND THE EARLY UNIVERSE . ... Research Area: COSMOLOGY AND THE EARLY UNIVERSE . ... 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 Evolution of Galaxies and the ISM Cosmology and the Early Universe Scientific Positions Faculty Fellows Scientists Students . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

Early Dust Evolution in an Extreme Environment FrÈdÈric Galliano (NRC / NASA GSFC); Eli Dwek (NASA GSFC); Ant Jones (IAS Orsay) SDSS J1148+5251: a hyperluminous high metallicity galaxy, in the early universe SDSS J1148+5251 (Fan et al. 2003) is the most distant quasar known to date (z=6.42). ... An exceptionally high star formation rate.. ... J1148+5251 is should be the and its observed dust ·The two left figures (Dwek et al. 2006) show the evolution of the gas and dust masses, in SDSS J1148+5251. ...

... An artificial comet holds secrets to Earths life . ... Supernova showered Earth with radioactive debris . ... Solar eclipse travelogue: Sulawesi delivers a spectacular eclipse . ... Tune into the Asteroid Day press conference . ... Asteroid DayÓ?ò??ò??s Don Yeomans: Will asteroid 2013 TX68 strike Earth? ... As Earth was molten early during its formation, dense metals should have sunk toward the core, yet iron is found closer to the surface. Did asteroids and comets deliver some of these materials? ...

... Formation and Early Evolution of Intermediate Mass Stars . Talk at IAU Symposium 221: Star Formation at High Angular Resolution . Sydney, July 2003, Viewgraphs (ppt) , proceedings contribution (PDF) . ... Invited Talk at Galactic Star Formation across the Mass Spectrum . ... Invited Talk at Modes of Star Formation and the Origin of Field Populations . ... Invited Talk at JENAM99 - Joint European and National Astronomical Meeting for 1999 . ... Mantained by: Leonardo Testi ...

... The black-hole powered core of the Circinus galaxy. ... Andy Bunker (AAO): "Galaxy evolution at the earliest accessible times" . ... Mark Lacy (CalTech): "High redshift radio galaxies and SMBH evolution" . Roger Windhorst (Arizona): "When during galaxy assembly did AGN growth take place?" ... Role of mergers and blackholes in galaxy evolution . ... Arman Khalatyan (Marseille): "The role of mergers in galaxy evolution" . ... Astrophysical Sources of Gravitational Waves . ...

... Session 1 - Stars, star formation, stellar populations and planets . 9.20 10.00 . ... HST Spectroscopy of the Hottest White Dwarfs . ... Coffee break . ... Lunch break . ... A (long) look at neutron stars with HST . ... Session 2 - Nearby galaxies, bulges, spheroids, galaxy formation . ... New HST/ACS Insights into the Evolution of Star-Forming Dwarf Galaxies with Extreme Properties of Cosmological Relevance . ... Deriving properties of Lyman-break galaxies at z~3-5 using HST/VLT/Spitzer data . ...

Next: Concluding Remarks and Future Up: Evolution of the Double Previous: Effect of sources evolution . Our calculations show that if GRB indeed are due to binary neutron star coalescence,   they can potentially constrain the cosmological parameters as well as the early star formation history. ... 1994)).[ ... If the cosmological origin of GRB is confirmed, the - and test could be used independently to estimating the cosmological parameters and tracing star formation history in galaxies. ...

... The distributions of orbits eccenttricities and of angular momenta for the halo stars and the old disk population are considered. The distributions have gaps separating the halo from the disk and dividing the halo population into three groups. ... Ðàññìîòðåíû ðàñïðåäåëåíèÿ çâåçä ãàëî è ñòàðîãî íàñåëåíèÿ äèñêà ïî âåëè÷èíå ýêñöåíòðèñèòåòà îðáèò è óãîâîãî ìîìåíòà. Ðàñïðåäåëåíèÿ èìåþò ïðîâàëû, îòäåëÿþùèå ãàëî îò äèñêà è äåëÿùèå íàñåëåíèÿ ãàëî íà òðè ãðóïïû. ...

PhD Thesis (PDF) . ... The evolution of stars and gas in galaxies. Observing the atomic neutral hydrogen (HI) 21 cm emission and radio continuum emission of galaxies. ... The goal of research is to quantify the neutral atomic hydrogen (HI) gas content galaxies as they evolve with time. ... Neutral atomic hydrogen gas produces a radio signal that can be used to directly measure the amount of gas present. ... USyd Summer Research Scholarship Report (PDF) . ... Research Topic Write Up (PDF) . ...

... We consider the astrophysical evolution of the Galaxy over large time scales, from early stages (an age of ~10 8 yrs) to the end of traditional stellar evolution (~10 11 yrs). ... In the model considered, the basic stages of Galactic evolution are as follows. ... Essentially all other basic parameters of the Galaxy vary little. ... The final "stellar epoch" in the life of the Galaxy is completed ~10 13 yrs after its formation, when the evolution of the least massive stars comes to an end. ...

... Viewing the Universe with Infrared Eyes: The Spitzer Space Telescope . Dr Giovanni Fazio . ... He then lead the development of large balloon-borne telescopes for far-infrared astronomical observations above the atmosphere, as Principal Investigator for the 1-Meter Balloon-Borne Far-Infrared Telescope and also the first infrared astronomical telescope to fly on the Spacelab II flight of the Space Shuttle. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Astronomy Picture of the Day . ... 14.06.1997 . ... Credit: F. Summers ( Princeton ), D. Cox, R. Patterson, E. Wesselak, and B. Sanders ( NCSA ), L. Carpenter ( Pixar ), GC3 , Cosmic Voyage , Smithsonian Explanation: What did our universe look like when it was young? ... Galaxies and long filaments formed - which are shown by the bright patches and streaks in the above frame . ... June 1997 . ... Building Galaxies in the Early Universe . ... Unexpected Galaxy String in the Early Universe . ...

Our early publications since 1990 till 1995 year . ... 7.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu.Kniazev, J.A. Stepanian, 1990, Nature, 343, 238, Unusual low heavy-element abundance found in the blue compact galaxy SBS 0335-052 8.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu,Kniazev, J.A.Stepanian, 1990, Physical Processes in Fragmentation and Star Formation, 1990, Kluwer Academic Publisher, p.235-240. ... New blue compact dwarf galaxies with low heavy-element abundances. ... 1993. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchòÄâ series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronadoˆî Solar . ... Spotting Scopes . ...

Map projected image of Earth (AVHRR) 123k gif ; 1440k gif . Famous Apollo 11 image of Africa Europe 31k jpg . global composite of satellite images 508k gif . ... Galileo image of South America from 1st flyby 62k jpg . ... Earth by Meteosat 4 satellite (IR filter) 688k jpg . ... Ross ice sheet, Antarctica, taken by Galileo on its first pass of Earth 11k jpg . ... NOAA satellite's view of USA 322k gif . ... images of Earth from Clementine html . Earth images from weather satellites html . ...

... Galaxy Evolution Explorer (GALEX) . ... Searching for SZ clusters . ... Baryon content of galaxy clusters and cosmology . ... 3 sigma peaks: Observational Signatures of High Redshift Galaxies and Low Redshift Clusters . CLUSTERS OF GALAXIES . ... Clusters of galaxies seen in X-rays: war and peace . ... Chandra X-ray Observations of Clusters/Groups/Galaxies . ... Common timing features in neutron stars and black holes . ... X-ray luminosity function of low-mass X-ray binaries in galaxies . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. June 14, 1997 . The Early Universe . ... The above animated frame is the result of such a calculation and shows how our universe might have looked when it was just a fracton of its current age . ... As time progressed, gravity caused slight gatherings of mass to accrete so that ever greater conglomerations formed. ... About APOD > . ...