Results 41 to 50 of about 482,532 (269)

A Self-interacting Dark Matter Solution to the Extreme Diversity of Low-mass Halo Properties

open access: yesThe Astrophysical Journal Letters, 2023
The properties of low-mass dark matter (DM) halos appear to be remarkably diverse relative to cold, collisionless DM predictions, even in the presence of baryons.
Ethan O. Nadler, Daneng Yang, Hai-Bo Yu
doaj   +1 more source

S0 Galaxies: Outer Gas Accretion through Tidal Interaction and Minor Merging

open access: yesGalaxies, 2023
To clarify the sources of outer gas accretion onto disk galaxies, we study the vicinity of four interacting galaxy systems in the Hα emission line by using the scanning Fabry–Perot interferometer of the 6m telescope of the Special Astrophysical ...
Olga Sil’chenko   +3 more
doaj   +1 more source

Supernovae in isolated galaxies, in pairs and in groups of galaxies [PDF]

open access: yes, 2001
In order to investigate the influence of the environment on the supernova (SN) production we have performed a statistical investigation of the SNe discovered in isolated galaxies, in pairs and in groups of galaxies. 22 SNe in 18 isolated galaxies, 48 SNe
A.R. Petrosian   +59 more
core   +2 more sources

Interactions among intermediate redshift galaxies. The case of SDSSJ134420.86+663717.8

open access: yes, 2020
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

Chemodynamical Evolution of Interacting Galaxies [PDF]

open access: yes, 2002
4 pages, 3 figures, to be published in "The Evolution of Galaxies. II. Basic Building Blocks", ed. M.
A. L. Melchior, Francoise Combes
openaire   +3 more sources

The Radio Emission of Interacting Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1982
Gravitational interaction is a straightforward interpretation of some of the peculiar optical morphologies shown by galaxies. There have also been attempts to study the effects of a gravitational interaction on the radio continuum emission. Statistically, the central radio sources (inner 1 kpc) in interacting spiral galaxies are about three times ...
J. M. van der Hulst   +3 more
openaire   +2 more sources

The ISM in the z = 6.9 Interacting Galaxies of SPT0311-58

open access: yesThe Astrophysical Journal, 2023
SPT0311-58, a system of two interacting galaxies in the Epoch of Reionization, exists in one of the rarest, most massive dark matter halos theoretically possible in that era.
Katrina C. Litke   +21 more
doaj   +1 more source

The unusual distribution of molecular gas and star formation in Arp 140 [PDF]

open access: yes, 2006
We investigate the atomic and molecular interstellar medium and star formation of NGC 275, the late-type spiral galaxy in Arp 140, which is interacting with NGC 274, an early-type system.
Alexander, P.   +4 more
core   +3 more sources

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

Interactions, Starbursts, and Star Formation

open access: yesGalaxies, 2015
We study how interactions between galaxies affect star formation within them by considering a sample of almost 1500 of the nearest galaxies, all within a distance of ∼45 Mpc. We use the far-IR emission to define the massive star formation rate (SFR), and
Johan H. Knapen, Miguel Querejeta
doaj   +1 more source

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