Results 331 to 340 of about 166,323 (379)

Feedback mechanisms stopping the star formation in a pair of massive galaxies in the early Universe

Pérez-González P, D'Eugenio F, Pino BRD, Perna M, Uebler H, Maiolino R, Arribas S, Lamperti I, Bunker A, Carniani S, Charlot S, Willott C, Böker T, Parlanti E, Scholtz J, Venturi G, Barro G, Costantin L, Navarro IM, Dunlop J, Magee D, Cresci G.   +21 more
europepmc   +1 more source

The role of black holes in galaxy formation and evolution [PDF]

Nature, 2009
Virtually all massive galaxies, including our own, host central black holes ranging in mass from millions to billions of solar masses. The growth of these black holes releases vast amounts of energy that powers quasars and other weaker active galactic ...
A. Cattaneo, S. Faber, J. Binney, A. Dekel, J. Kormendy, R. Mushotzky, A. Babul, P. Best, M. Brüggen, A. Fabian, C. Frenk, Arman Khalatyan, H. Netzer, A. Mahdavi, J. Silk, M. Steinmetz, L. Wisotzki   +16 more
semanticscholar   +5 more sources

Galaxy formation and evolution [PDF]

, 2005
Taking the Measure of the Low-Redshift Universe.- Which Properties of Galaxies can Likely Evolve (and be Measured)?.- Observations of an Evolving Universe.- Galaxies at the Contemporary Limits.- Observational Cosmology.- Astronomical Instrumentation of the Future.- Briefly: Some Overall Conclusions and Problems.
H. Spinrad
semanticscholar   +3 more sources

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Galaxy formation and evolution

Physica Scripta, 1991
The presence of high z quasars and radio galaxies tells us that galaxy formation began at z greater than 5, but leaves unanswered the question of when the bulk of galaxies formed. Recent near infrared number counts of galaxies strongly favor a cosmological geometry with q(sub 0) = 0.5 and lambda = 0.
L. Cowie
semanticscholar   +3 more sources

Galaxy Formation and Evolution

, 2009
Major steps in our knowledge of high redshift galaxies and quasars were made possible by the synergy between the Hubble Space Telescope (HST) and 8–10 m class optical-near infrared ground-based telescopes. The galaxy samples were built from very deep, pencil-beam surveys with the HST and deep, wider area surveys undertaken with ground-based facilities.
J. Bergeron
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Galaxy Formation and Evolution

Space Science Reviews, 2016
In this chapter, we discuss the current status of observational and computational studies on galaxy formation and evolution. In particular, a joint analysis of star-formation rates (SFRs), stellar masses, and metallicities of galaxies throughout cosmic time can shed light on the processes by which galaxies build up their stellar mass and enrich the ...
Kentaro Nagamine, Kentaro Nagamine, Mark Sargent, Naveen A. Reddy, Emanuele Daddi   +4 more
openaire   +2 more sources

Chemical evolution in simulations of galaxy formation [PDF]

Astrophysics and Space Science, 2002
We developed a new algorithm to implement detailed chemical evolution in SPH models of galaxy formation. Delayed gas restitution and different production timescales for different elements are taken into account, with minor computational effort. The algorithm is especially conceived for SPH simulations with large numbers of particles, and for parallel ...
Portinari,L, CARRARO, GIOVANNI, Lia,C
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The Role of Dark Matter in Galaxy Formation and Evolution

Proceedings of the 1st International Conference on Innovations in Applied Mathematics, Physics and Astronomy
: At the forefront of contemporary astrophysics, it is widely accepted that galaxy formation is directly attributed to the gravitational pull of dark matter halos.
Tianyu Zhang
semanticscholar   +1 more source

Galaxy Formation and Evolution in an Einstein-de Sitter Cosmology

Science and Technology of Engineering, Chemistry and Environmental Protection
The Einstein-de Sitter universe, proposed in 1932, presents a flat, matter-only cosmological model that offers insights into the galaxies’ formation and evolution.
Jian Pan
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Formation and evolution of elliptical galaxies

Monthly Notices of the Royal Astronomical Society, 2002
We address the problem of the formation and evolution of elliptical galaxies (from dwarf to normal/giant systems). In particular, by means of N-body-tree–SPH simulations, incorporating cooling, star formation, energy feedback and chemical evolution, we intend to explore whether the formation of elliptical galaxies from the monolithic collapse of ...
CHIOSI, CESARE, CARRARO, GIOVANNI
openaire   +3 more sources