Results 61 to 70 of about 166,323 (379)
Stochastic 2-D Models of Galaxy Disk Evolution. The Galaxy M33
Open Astronomy, 2014 We have developed a fast numerical 2-D model of galaxy disk evolution (resolved along the galaxy radius and azimuth) by adopting a scheme of parameterized stochastic self-propagating star formation.
Mineikis T., Vansevičius V.
doaj +1 more source
New chemical evolution analytical solutions including environment effects
, 2015 In the last years, more and more interest has been devoted to analytical solutions, including inflow and outflow, to study the metallicity enrichment in galaxies.
Spitoni, E.
core +1 more source
Formation and Evolution of Disk Galaxies [PDF]
Symposium - International Astronomical Union, 1999 We have developed a semianalitical approach to study galaxy formation and evolution in the cosmological context. Disk galaxies (dark matter halo+luminous disk) are considered to be formed through an extended process of gravitational collapse, whose character is determined by the statistical properties of the density fluctuation field assumed here to be
C. Firmani, Vladimir Avila-Reese
openaire +2 more sources
Internal Secular Evolution in Disk Galaxies: The Growth of Pseudobulges
, 2007 Observational and theoretical evidence that internal, slow ("secular") evolution reshapes galaxy disks is reviewed in Kormendy & Kennicutt (2004, ARAA, 42, 603). This update has three aims.
Athanassoula +14 more
core +1 more source
The evolution of the star-forming sequence in hierarchical galaxy formation models. [PDF]
, 2014 It has been argued that the specific star formation rates of star forming galaxies inferred from observational data decline more rapidly below z = 2 than is predicted by hierarchical galaxy formation models. We present a detailed analysis of this problem
P. Mitchell +4 more
semanticscholar +1 more source
Galaxy Formation and Chemical Evolution
International Journal of Astronomy and Astrophysics, 2014 14 pages, 5 ...
openaire +4 more sources
THE EVOLUTION OF STAR FORMATION HISTORIES OF QUIESCENT GALAXIES [PDF]
The Astrophysical Journal, 2016 ABSTRACT Although there has been much progress in understanding how galaxies evolve, we still do not understand how and when they stop forming stars and become quiescent. We address this by applying our galaxy spectral energy distribution models, which incorporate physically motivated star formation histories (SFHs) from cosmological ...
Mauro Giavalisco +25 more
openaire +6 more sources
Targeted decrease of portal hepatic pressure gradient improves ascites control after TIPS
Hepatology, EarlyView., 2022 The river diagram demonstrates that after transjugular intrahepatic portosystemic shunt insertion (TIPS) the majority of patients without ascites and 50% of the patients with ascites detectable at ultrasound, show the best response in the long term follow‐up.
Alexander Queck +14 more
wiley +1 more source
, 2011 Some of the extremely metal-poor Blue Compact Dwarf galaxies (XBCDs) in the nearby universe form galaxy pairs with remarkably similar properties. This fact points to an intriguing degree of synchronicity in the formation history of these binary dwarf ...
H-H Loose +12 more
core +1 more source
The time-evolution of bias [PDF]
, 1998 We study the evolution of the bias factor b and the mass-galaxy correlation coefficient r in a simple analytic model for galaxy formation and the gravitational growth of clustering. The model shows that b and r can be strongly time-dependent, but tend to
Babul A. +5 more
core +2 more sources