Results 1 to 10 of about 47,778 (231)
Central star formation and metallicity in CALIFA interacting galaxies
Astronomy and Astrophysics, 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 ...
J K Barrera-Ballesteros +2 more
exaly +4 more sources
On the characteristics of tidal structures of interacting galaxies
Astronomy Letters, 2011 We present the results of our analysis of the geometrical tidal tail characteristics for nearby and distant interacting galaxies. The sample includes more than two hundred nearby galaxies and about seven hundred distant ones.
V P Reshetnikov, N Ya Sotnikova
exaly +3 more sources
INTERACTIONS OF GALAXIES IN THE GALAXY CLUSTER ENVIRONMENT [PDF]
The Astrophysical Journal, 2009 We study the dependence of galaxy properties on the clustercentric radius and the environment attributed to the nearest neighbor galaxy using the SDSS galaxies associated with the Abell galaxy clusters. We find that there exists a characteristic scale where the properties of galaxies suddenly start to depend on the clustercentric radius at fixed ...
Park, Changbom, Hwang, Ho Seong
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The SEDs of interacting galaxies [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractThe evolution of galaxies is greatly influenced by their interactions. As part of a program to study interacting galaxies, we have measured and modeled the spectral energy distributions (SEDs) from the ultraviolet (UV) to the far-infrared (FIR).
Lanz, Lauranne +10 more
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Astronomy & Astrophysics, 2012 We study galaxy pair samples selected from the Sloan Digital Sky Survey (SDSS-DR7) and we perform an analysis of minor and major mergers with the aim of investigating the dependence of galaxy properties on interactions. We build a galaxy pair catalog requiring rp < 25 kpc h-1 and Delta V < 350 km s-1 within redshift z<0.1. By visual inspection
Lambas, Diego G. +3 more
openaire +8 more sources
Dwarf Galaxy Formation Induced by Galaxy Interactions [PDF]
The Astrophysical Journal, 2000 9 pages (including 1 figure), To appear in ApJ, 543 (Part 1) Nov 1, 2000 (ApJ volume Nr was wrong in the previous version ...
Okazaki, T., Taniguchi, Y.
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Triggering Star Formation by Galaxy-Galaxy Interactions [PDF]
Symposium - International Astronomical Union, 2004 We analyzed the effects of having a close companion on the star formation activity of galaxies in the 8K galaxy pair catalog selected from the 2dFGRS. We found that, statistically, galaxies with rp < 25h−1 kpc and ΔV < 100km s−1 have enhanced star formation with respect to isolated galaxies with the same luminosity and redshift distribution.
Tissera, Patricia B. +3 more
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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. +8 more
openaire +5 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 +3 more
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Hidden Interaction in SBO galaxies [PDF]
International Astronomical Union Colloquium, 1990 Galaxies, like plants, show a large variety of grafts: an individual of some type connects physically with a neighborhood of same or different type. The effects of these interactions between galaxies have a broad range of morphologies depending, among other quantities, on the distance of the closest approach between systems and the relative size of the
GALLETTA, GIUSEPPE +3 more
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