Results 21 to 30 of about 149,951 (272)

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.
openaire   +3 more sources

Two phase galaxy formation: The Evolutionary Properties of Galaxies [PDF]

, 2009
We use our model for the formation and evolution of galaxies within a two-phase galaxy formation scenario, showing that the high-redshift domain typically supports the growth of spheroidal systems, whereas at low redshifts the predominant baryonic growth
Barausse, E, Cook, M, Evoli, C, Granato, GL, Lapi, A   +4 more
core   +2 more sources

The impact of radial migration on disk galaxy star formation histories

Astronomy & Astrophysics
Knowledge of the spatially resolved star formation history (SFH) of disk galaxies provides crucial insight into disk assembly, quenching, and chemical evolution.
Minchev I., Attard K., Ratcliffe B., Martig M., Walcher J., Khoperskov S., Bernaldez J. P., Marques L., Sysoliatina K., Chiappini C., Steinmetz M., de Jong R. S.   +11 more
doaj   +1 more source

Dust-regulated galaxy formation and evolution:A new chemodynamical model with live dust particles

, 2015
Interstellar dust plays decisive roles in the conversion of neutral to molecular hydrogen (H_2), the thermodynamical evolution of interstellar medium (ISM), and the modification of spectral energy distributions (SEDs) of galaxies.
Bekki, Kenji
core   +1 more source

The Gaia-ESO survey: Open clusters as tracers of galactic chemical evolution

Astronomy & Astrophysics
Aims. We investigate the formation and evolutionary trajectory of the Milky Way’s inner and outer galactic regions using stars from open clusters in the Gaia-ESO OC survey. Methods. Using numerical simulations from Chempy, we leveraged Markov chain Monte
Boucher K., Worley C. C., Gilmore G., Stonkutė E., Magrini L., Drazdauskas A., Bragaglia A., Tautvaišienè G., Bensby T., Jiménez-Esteban F., Martell S., Randich S., Damiani F.   +12 more
doaj   +1 more source

UGC 7639: A Dwarf Galaxy in the Canes Venatici I Cloud

Advances in Astronomy, 2015
We want to get insight into the formation mechanism and the evolution of UGC 7639, a dwarf galaxy in the Canes Venatici I Cloud (CVnIC). We used archival multiwavelength data to constrain its global properties. Ultraviolet images show that UGC 7639 inner
L. M. Buson, D. Bettoni, P. Mazzei, G. Galletta   +3 more
doaj   +1 more source

Scaling Properties of Galaxy Groups

Universe, 2021
Galaxy groups and poor clusters are more common than rich clusters, and host the largest fraction of matter content in the Universe. Hence, their studies are key to understand the gravitational and thermal evolution of the bulk of the cosmic matter ...
Lorenzo Lovisari, Stefano Ettori, Massimo Gaspari, Paul A. Giles   +3 more
doaj   +1 more source

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, Athanassoula, Binney, Buta, Buta, Combes, Drory, Duus, John Kormendy, Kormendy, Kormendy, Kormendy, Peletier, Sellwood, Sérsic   +14 more
core   +1 more source

Simulating the Formation of the Local Galaxy Population [PDF]

, 2001
We simulate the formation and evolution of the local galaxy population starting from initial conditions with a smoothed linear density field which matches that derived from the IRAS 1.2 Jy galaxy survey.
A. Dekel, A. Eldar, Abell, Allen, Barnes, Baugh, Baugh, Benson, Benson, Benson, Benson, Binney, Bistolas, Blanton, Bothun, Bower, Branchini, Bruzual, Buchalter, Burles, Cardelli, Churazov, Cole, Cole, Cole, Davis, de Vaucouleurs, Dekel, Devriendt, Diaferio, Diaferio, Ettori, Fabian, Falco, Fisher, Fisher, Folkes, G. Kauffmann, G. Lemson, Ganon, Gardner, Giovanelli, Girardi, Girardi, Gonzalez, Gudehus, H. Mathis, Hamilton, Helou, Hoffman, Hoffman, Huchra, Jenkins, Jenkins, Kauffmann, Kauffmann, Kauffmann, Kauffmann, Kauffmann, Kent, Kolatt, Loveday, Lucey, Lumsden, Marzke, Nagamine, Navarro, Pearce, Rocha-Pinto, Rocha-Pinto, Roussel, Rowan-Robinson, S. D. M. White, Sandage, Sandage, Saunders, Saunders, Schlegel, Silberman, Simien, Somerville, Somerville, Springel, Springel, Sutherland, Uson, V. Springel, van Kampen, Walker, Wang, White, White, White, White, Willick, Willick, Willick   +96 more
core   +3 more sources

Galaxy Formation and Evolution since z = 1 [PDF]

, 2006
Determination of the star formation rate can be done using mid-IR photometry or Balmer line luminosity after a proper correction for extinction effects. Both methods show convergent results while those based on UV or on [OII]3727 luminosities underestimate the SFR by factors ranging from 5 to 40 for starbursts and for luminous IR galaxies, respectively.
Hammer, François, Flores, Hector, Liang, Yanchun, Zheng, Xianzhong, Elbaz, David, Cesarsky, Catherine   +5 more
openaire   +3 more sources