Results 51 to 60 of about 469,113 (320)

Hidden Interaction in SBO galaxies [PDF]

open access: yesInternational 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
openaire   +3 more sources

GOALS-JWST: Revealing the Buried Star Clusters in the Luminous Infrared Galaxy VV 114

open access: yesThe Astrophysical Journal Letters, 2023
We present the results of a James Webb Space Telescope NIRCam investigation into the young massive star cluster (YMC) population in the luminous infrared galaxy VV 114.
Sean T. Linden   +32 more
doaj   +1 more source

Central star formation and metallicity in CALIFA interacting galaxies

open access: yes, 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   +18 more
core   +2 more sources

The CFHTLS Deep Catalog of Interacting Galaxies I. Merger Rate Evolution to z=1.2 [PDF]

open access: yes, 2010
We present the rest-frame optical galaxy merger fraction between 0 ...
Bridge, Carrie R.   +2 more
core   +2 more sources

Ghost in the Shell: Evidence for Past Active Galactic Nucleus Activities in NGC 5195 from a Newly Discovered Large-scale Ionized Structure

open access: yesThe Astrophysical Journal, 2023
The early-type galaxy NGC 5195 (alternatively known as M51b) possesses extended gas features detected in the multiwavelength, postulated to be associated with previous activities of the central supermassive black hole.
Xiaoyu Xu, Junfeng Wang
doaj   +1 more source

Galaxy interactions II: High density environments [PDF]

open access: yes, 2011
With the aim to assess the role of dense environments in galaxy interactions, properties we present an analysis of close galaxy pairs in groups and clusters, obtained from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7). We identified pairs that reside in groups by cross-correlating the total galaxy pair catalogue with the SDSS-DR7 group ...
arxiv   +1 more source

Optical Properties of 4248 IRAS Galaxies [PDF]

open access: yesMon.Not.Roy.Astron.Soc. 360 (2005) 322-339, 2005
We have investigated optical properties of 4248 infrared galaxies (IRGs) by positionally matching data from the IRAS and the SDSS DR3. Our sample includes 3 hyper luminous infrared galaxies (L >10^13Lsun) and 178 ultra luminous infrared galaxies (10^12Lsun < L < 10^13Lsun). Our findings are as follows: (i) more IR luminous galaxies tend to have smaller
arxiv   +1 more source

Gasdynamics and Starbursts in Interacting Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1999
The onset of gaseous inflows and central activity in interacting galaxies is driven largely by induced bars in the host galaxies. The stability of galaxies against growing bar modes is a direct function of their structural properties — galaxies with central bulges or low disk surface densities are more stable against central starbursts than are ...
openaire   +4 more sources

Effect of the Environment on the Fundamental Plane of Elliptical Galaxies [PDF]

open access: yes, 2000
We present an analysis of interacting E/S0 galaxies location on the Fundamental Plane. Using the NEMO package, we performed N-body simulations of close encounters and mergers between two spherical galaxies.
Evstigneeva, E. A.   +2 more
core   +3 more sources

Gas-Phase Oxygen Gradients in Strongly Interacting Galaxies: I. Early-Stage Interactions

open access: yes, 2010
A consensus is emerging that interacting galaxies show depressed nuclear gas metallicities compared to isolated star-forming galaxies. Simulations suggest that this nuclear underabundance is caused by interaction-induced inflow of metal-poor gas, and ...
Allen   +53 more
core   +1 more source

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