Results 11 to 20 of about 2,094,644 (376)

Simulations of Dust in Interacting Galaxies [PDF]

AIP Conference Proceedings, 2004
A new Monte-Carlo radiative-transfer code, Sunrise, is used to study the effects of dust in N-body/hydrodynamic simulations of interacting galaxies. Dust has a profound effect on the appearance of the simulated galaxies.
Cox, T. J., Jonsson, Patrik, Primack, Joel R.   +2 more
core   +5 more sources

Interacting galaxies and cosmological parameters [PDF]

Astronomy & Astrophysics, 2006
We propose a (physical)-geometrical method to measure the present rates of the density cosmological parameters for a Friedmann-Lemaitre universe. The distribution of linear separations between two interacting galaxies,when both of them undergo a first ...
Barnes, Berger, Blanchard, Chen, Croom, Dashveski, Demianski, Djorgovski, Dyer, Goldhabber, Guerra, Gurvits, H. Reboul, J.-P. Cordoni, Kellermann, Le Fèvre, Lemaître, Lima, Mihos, Reboul, Reboul, Remijan, Riess, Robertson, Sahni, Sanders, Schmidt, Springel, Steidel, Tolman, Toomre, Vanderriest, Véron, Zhu, Zhu, Zhu   +35 more
core   +11 more sources

Galaxy Zoo: Mergers – Dynamical models of interacting galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
The dynamical history of most merging galaxies is not well understood. Correlations between galaxy interaction and star formation have been found in previous studies, but require the context of the physical history of merging systems for full insight into the processes that lead to enhanced star formation.
Holincheck, Anthony J., Wallin, John F., Borne, Kirk, Fortson, Lucy, Lintott, Chris, Smith, Arfon M., Bamford, Steven, Keel, William C., Parrish, Michael   +8 more
openaire   +8 more sources

Isolated Galaxies versus Interacting Pairs with MaNGA

Galaxies, 2015
We present preliminary results of the spectral analysis on the radial distributions of the star formation history in both, a galaxy merger and a spiral isolated galaxy observed with MaNGA.
Argudo-Fernández, M., Chang, R., Feng, S., Shen, S., Yin, J., Yuan, F.   +5 more
core   +4 more sources

Central star formation and metallicity in CALIFA interacting galaxies [PDF]

, 2015
We use optical integral-field spectroscopic (IFS) data from 103 nearby galaxies at different stages of the merging event, from close pairs to merger remnants provided by the CALIFA survey, to study the impact of the interaction in the specific star ...
B. García-Lorenzo, B. Husemann, C. J. Walcher, C. Kehrig, collaboration the CALIFA, D. Mast, F. F. Rosales-Ortega, G. van de Ven, I. Márquez, J. Falcón-Barroso, J. Iglesias-Páramo, J. K. Barrera-Ballesteros, J. M. Vilchez, L. Galbany, M. A. Pérez-Torres, R. A. Marino, R. García-Benito, S. F. Sánchez, Á. R. López-Sánchez   +18 more
core   +3 more sources

THE METALLICITY EVOLUTION OF INTERACTING GALAXIES [PDF]

The Astrophysical Journal, 2012
Nuclear inflows of metal-poor interstellar gas triggered by galaxy interactions can account for the systematically lower central oxygen abundances observed in local interacting galaxies. Here, we investigate the metallicity evolution of a large set of simulations of colliding galaxies.
Torrey, Paul, Cox, T J, Kewley, Lisa, Hernquist, Lars   +3 more
openaire   +6 more sources

A Comparative Study of Knots of Star Formation in Interacting vs. Spiral Galaxies [PDF]

, 2016
Interacting galaxies are known to have higher global rates of star formation on average than normal galaxies, relative to their stellar masses. Using UV and IR photometry combined with new and published H-alpha images, we have compared the star formation
Jones, Keith, Olmsted, Susan, Smith, Beverly J., Struck, Curtis, Zaragoza-Cardiel, Javier   +4 more
core   +2 more sources

The central densities of Milky Way-mass galaxies in cold and self-interacting dark matter models [PDF]

Monthly notices of the Royal Astronomical Society, 2021
We present a suite of baryonic cosmological zoom-in simulations of self-interacting dark matter (SIDM) haloes within the ‘Feedback In Realistic Environment’ (FIRE) project. The three simulated haloes have virial masses of $\sim 10^{12}\, \text{M}_\odot$
Omid Sameie, M. Boylan-Kolchin, R. Sanderson, Drona Vargya, P. Hopkins, A. Wetzel, J. Bullock, A. Graus, V. Robles   +8 more
semanticscholar   +1 more source

Interacting galaxies in the IllustrisTNG simulations – II: star formation in the post-merger stage [PDF]

Monthly notices of the Royal Astronomical Society, 2020
Galaxy mergers are a major evolutionary transformation whose effects are borne out by a plethora of observations and numerical simulations. However, most previous simulations have used idealized, isolated, binary mergers and there has not been ...
M. Hani, Hayman Gosain, S. Ellison, D. Patton, P. Torrey   +4 more
semanticscholar   +1 more source

Interacting galaxies in the IllustrisTNG simulations - I: Triggered star formation in a cosmological context [PDF]

Monthly notices of the Royal Astronomical Society, 2020
We use the IllustrisTNG cosmological hydrodynamical simulations to investigate how the specific star formation rates (sSFRs) of massive galaxies (M* > 1010 M⊙) depend on the distance to their closest companions.
D. Patton, Kieran D. Wilson, Colin Metrow, S. Ellison, P. Torrey, Westley Brown, M. Hani, S. McAlpine, J. Moreno, J. Woo   +9 more
semanticscholar   +1 more source