Results 21 to 30 of about 65,809 (311)
Galaxy Interactions: The Hi Signature [PDF]
HI observations are an excellent tool for investigating tidal interactions. Ongoing major and minor interactions which can lead to traumatic mergers or to accretion and the triggering of star formation, show distinct HI signatures. Interactions and mergers in the recent past can also be recognized in the HI structure and kinematics.
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Galaxy Zoo: quantifying morphological indicators of galaxy interaction★ [PDF]
We use Galaxy Zoo 2 visual classifications to study the morphological signatures of interaction between similar-mass galaxy pairs in the Sloan Digital Sky Survey. We find that many observable features correlate with projected pair separation; not only obvious indicators of merging, disturbance and tidal tails, but also more regular features, such as ...
Kevin Schawinski+12 more
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Extreme emission line galaxies (EELGs), where nebular emissions contribute 30%–40% of the flux in certain photometric bands, are ubiquitous in the early Universe ( z > 6).
Anshu Gupta+9 more
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Isolated and Interacting Galaxies: Simulations with GRAPE [PDF]
I present N-body simulations of isolated and interacting galaxies, made on GRAPE machines. In particular I discuss the formation and evolution of N-body bars and compare their properties to those of bars in early-type and late-type galactic discs. I argue that the halo can help the bar grow, contrary to previous beliefs, by taking positive angular ...
E. Athanassoula
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The Great Observatories All-Sky LIRG Survey: Comparison of Ultraviolet and Far-Infrared Properties [PDF]
The Great Observatories All-sky LIRG Survey (GOALS) consists of a complete sample of 202 Luminous Infrared Galaxies (LIRGs) selected from the IRAS Revised Bright Galaxy Sample (RBGS).
Appleton, Phil+23 more
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Simulations of Dust in Interacting Galaxies [PDF]
4 pages, 5 figures, to appear in the proceedings of the conference "The Spectral Energy Distribution of Gas-Rich Galaxies", eds. C.C. Popescu & R.J. Tuffs (Heidelberg, October 2004)
Patrik Jönsson+2 more
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Dust Deficiency in the Interacting Galaxy NGC 3077
Using 70 μ m observations taken with the PACS instrument of the Herschel space telescope, the dust content of the nearby and interacting spiral galaxy NGC 3077 has been compared with the dust content of the isolated galaxies such as NGC 2841, NGC ...
Jairo Armijos-Abendaño+4 more
doaj +1 more source
S8 Tension in the Context of Dark Matter–Baryon Scattering
We explore an interacting dark matter (IDM) model that allows for a fraction of dark matter (DM) to undergo velocity-independent scattering with baryons. In this scenario, structure on small scales is suppressed relative to the cold DM scenario.
Adam He+3 more
doaj +1 more source
Interactions among intermediate redshift galaxies. The case of SDSSJ134420.86+663717.8
We present the properties of the central supermassive black holes and the host galaxies of the interacting object SDSSJ134420.86+663717.8. We obtained optical long slit spectroscopy data from the Large Binocular Telescope (LBT) using the Multi Object ...
Bowles, Micah+6 more
core +1 more source
Scale Interactions and Galaxy Evolution [PDF]
To understand galaxies and their evolution, it is necessary to describe how the different scales interact: how the microscopic physics, such as star formation, or the large scale physics, such as galaxy interactions may modify the galaxy global shapes.
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