Results 1 to 10 of about 2,155,625 (336)

The Larson-Tinsley Effect in the UV: Interacting vs. `Normal' Spiral Galaxies [PDF]

open access: bronze, 2010
We compare the UV-optical colors of a well-defined set of optically-selected pre-merger interacting galaxy pairs with those of normal spirals. The shorter wavelength colors show a larger dispersion for the interacting galaxies than for the spirals.
Abazajian   +32 more
core   +2 more sources

A spectroscopic study of the low redshift dwarf galaxy SDSS J134326.99+431118.7 to calculate star formation rate

open access: yesBibechana, 2021
We present a spectroscopic study of an interacting emission-line dwarf galaxy SDSS J134326.99+431118.7. We analyzed eight-strong emission lines of wavelength in a range of 3902.1Å to 6619.1Å.
Daya Nidhi Chhatkuli   +2 more
doaj   +3 more sources

Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies

open access: yesThe Astrophysical Journal Letters, 2023
Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu   +8 more
doaj   +1 more source

Dark matter mass loss in galaxy flybys: dependence on impact parameter [PDF]

open access: yesSerbian Astronomical Journal, 2022
Galaxy flybys, interactions where two independent halos inter-penetrate but detach at a later time and do not merge, occur frequently at lower redshifts.
Mitrašinović A.
doaj   +1 more source

Self-interacting dark matter on small and large scales

open access: yesSciPost Physics Proceedings, 2023
In the self-interacting dark matter paradigm (hereafter SIDM), dark matter (DM) is assumed to have non-gravitational interactions with itself. SIDM has been constrained by observations of galaxy clusters. More recently, measurements of large DM densities
Camila A. Correa
doaj   +1 more source

Dark matter phenomenology of high-speed galaxy cluster collisions

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We perform a general computational analysis of possible post-collision mass distributions in high-speed galaxy cluster collisions in the presence of self-interacting dark matter.
Yuriy Mishchenko, Chueng-Ryong Ji
doaj   +1 more source

Modelling ISO Galaxy Counts with Luminosity and Merger Rate Evolution [PDF]

open access: yes, 1998
We model galaxy evolution in the 6.75 and 15 micron passbands of the ISO satellite, by combining models of galaxy evolution at optical wavelengths (which are consistent with the optical galaxy counts) with observed spectral energy distributions in the ...
Eales, Steve, Roche, Nathan
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

The Great Observatories All-Sky LIRG Survey: Comparison of Ultraviolet and Far-Infrared Properties [PDF]

open access: yes, 2010
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
core   +3 more sources

The Role of AGN in Luminous Infrared Galaxies from the Multiwavelength Perspective

open access: yesUniverse, 2022
Galaxy mergers provide a mechanism for galaxies to effectively funnel gas and materials toward their nuclei and fuel the central starbursts and accretion of supermassive black holes.
Vivian U
doaj   +1 more source

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