Results 51 to 60 of about 482,532 (269)

Malin 1: interacting galaxy pair?

open access: yes, 2010
Malin 1 is a unique, extraordinarily large low surface brightness galaxy. The structure and the origins of the galaxy are poorly understood. The reason for such a situation is an absence of detailed observational data, especially, of high-resolution ...
A. V. Moiseev   +24 more
core   +1 more source

Galaxy interactions in IllustrisTNG-100, I: The power and limitations of visual identification [PDF]

open access: yes, 2019
We present a sample of 446 galaxy pairs constructed using the cosmological simulation IllustrisTNG-100 at z = 0, with M_(FoF,dm)=10¹¹−10^(13.5) M⊙. We produce ideal mock SDSS g-band images of all pairs to test the reliability of visual classification ...
Barnes, Joshua E.   +8 more
core   +2 more sources

Simulated Galaxy Interactions as Probes of Merger Spectral Energy Distributions [PDF]

open access: yes, 2014
We present the first systematic comparison of ultraviolet-millimeter spectral energy distributions (SEDs) of observed and simulated interacting galaxies.
Ashby, Matthew L. N.   +7 more
core   +2 more sources

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

AEGIS: Enhancement of Dust-enshrouded Star Formation in Close Galaxy Pairs and Merging Galaxies up to z ~ 1

open access: yes, 2007
Using data from the DEEP2 Galaxy Redshift Survey and HST/ACS imaging in the Extended Groth Strip, we select nearly 100 interacting galaxy systems including kinematic close pairs and morphologically identified merging galaxies.
Chiueh, Tzihong   +15 more
core   +1 more source

Harnessing the Hubble Space Telescope Archives: A Catalog of 21,926 Interacting Galaxies

open access: yesThe Astrophysical Journal, 2023
Mergers play a complex role in galaxy formation and evolution. Continuing to improve our understanding of these systems requires ever larger samples, which can be difficult (even impossible) to select from individual surveys.
David O’Ryan   +15 more
doaj   +1 more source

Back to the green valley: how to rejuvenate an S0 galaxy through minor mergers

open access: yes, 2015
About half of the S0 galaxies in the nearby Universe show signatures of recent or ongoing star formation. Whether these S0 galaxies were rejuvenated by the accretion of fresh gas is still controversial.
Mapelli, Michela
core   +1 more source

Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers

open access: yesThe Astrophysical Journal, 2023
Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić   +3 more
doaj   +1 more source

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