Results 21 to 30 of about 421,913 (232)

On the Encounter between the GASP Galaxy JO36 and the Radio Plume of GIN 049

open access: yesThe Astrophysical Journal, 2023
We report the serendipitous discovery of an unprecedented interaction between the radio lobe of a radio galaxy and a spiral galaxy. The discovery was made thanks to LOFAR observations at 144 MHz of the galaxy cluster A160 ( z = 0.04317) provided by the ...
Alessandro Ignesti   +17 more
doaj   +1 more source

Galaxy And Mass Assembly (GAMA): stellar mass growth of spiral galaxies in the cosmic web [PDF]

open access: yes, 2016
We look for correlated changes in stellar mass and star formation rate (SFR) along filaments in the cosmic web by examining the stellar masses and UV-derived SFRs of 1799 ungrouped and unpaired spiral galaxies that reside in filaments. We devise multiple
M. Alpaslan   +18 more
semanticscholar   +1 more source

High-resolution, 3D radiative transfer modeling. I. The grand-design spiral galaxy M 51 [PDF]

open access: yes, 2014
Context. Dust reprocesses about half of the stellar radiation in galaxies. The thermal re-emission by dust of absorbed energy is considered to be driven merely by young stars so is often applied to tracing the star formation rate in galaxies.
I. D. Looze   +22 more
semanticscholar   +1 more source

The introduction of baryon string in the model of spiral galaxies structure [PDF]

open access: yesКомпьютерные исследования и моделирование, 2012
It proposes a new alternative approach to explain the flat spectrum of the velocity for stars orbital motion on the periphery of spiral galaxies. In particular, that velocity significant excess of speed calculated according to the virial theorem.
A. V. Koganov, Vladimir G. Krechet
doaj   +1 more source

SpArcFiRe: SCALABLE AUTOMATED DETECTION OF SPIRAL GALAXY ARM SEGMENTS [PDF]

open access: yes, 2014
Given an approximately centered image of a spiral galaxy, we describe an entirely automated method that finds, centers, and sizes the galaxy (possibly masking nearby stars and other objects if necessary in order to isolate the galaxy itself) and then ...
Darren R. Davis, W. Hayes
semanticscholar   +1 more source

High velocity dispersion in a rare grand-design spiral galaxy at redshift z = 2.18 [PDF]

open access: yesNature, 2012
Although grand-design spiral galaxies are relatively common in the local Universe, only one has been spectroscopically confirmed to lie at redshift z > 2 (HDFX 28; z = 2.011); and it may prove to be a major merger that simply resembles a spiral in ...
D. Law   +5 more
semanticscholar   +1 more source

MEGAPARSEC RELATIVISTIC JETS LAUNCHED FROM AN ACCRETING SUPERMASSIVE BLACK HOLE IN AN EXTREME SPIRAL GALAXY [PDF]

open access: yes, 2014
The radio galaxy phenomenon is directly connected to mass-accreting, spinning supermassive black holes found in the active galactic nuclei. It is still unclear how the collimated jets of relativistic plasma on hundreds to thousands of kiloparsec scales ...
J. Bagchi   +8 more
semanticscholar   +1 more source

DETECTION OF A LUMINOUS HOT X-RAY CORONA AROUND THE MASSIVE SPIRAL GALAXY NGC 266 [PDF]

open access: yes, 2013
The presence of luminous hot X-ray coronae in the dark matter halos of massive spiral galaxies is a basic prediction of galaxy formation models. However, observational evidence for such coronae is very scarce, with the first few examples having only been
Á. Bogdán   +3 more
semanticscholar   +1 more source

DGSAT: Dwarf Galaxy Survey with Amateur Telescopes I. Discovery of low surface brightness systems around nearby spiral galaxies [PDF]

open access: yes, 2015
Context: We introduce the Dwarf Galaxy Survey with Amateur Telescopes (DGSAT) project and report the discovery of eleven low surface brightness (LSB) galaxies in the fields of the nearby galaxies NGC 2683, NGC 3628, NGC 4594 (M104), NGC 4631, NGC 5457 ...
B. Javanmardi   +11 more
semanticscholar   +1 more source

Isolated Galaxies versus Interacting Pairs with MaNGA

open access: yesGalaxies, 2015
We present preliminary results of the spectral analysis on the radial distributions of the star formation history in both a galaxy merger and a spiral isolated galaxy observed with MaNGA.
María del Carmen Argudo Fernández   +5 more
doaj   +1 more source

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