Results 31 to 40 of about 40,021 (256)

INTERACTIONS OF GALAXIES IN THE GALAXY CLUSTER ENVIRONMENT [PDF]

open access: yesThe Astrophysical Journal, 2009
We study the dependence of galaxy properties on the clustercentric radius and the environment attributed to the nearest neighbor galaxy using the SDSS galaxies associated with the Abell galaxy clusters. We find that there exists a characteristic scale where the properties of galaxies suddenly start to depend on the clustercentric radius at fixed ...
Park, Changbom, Hwang, Ho Seong
openaire   +2 more sources

INVESTIGATION OF THE UNIVERSE BY THE LOW-FREQUENCY RADIO ASTRONOMY METHODS IN UKRAINE (According to the report on the XI All-Ukrainian Festival of Science of 18 May 2017, Kyiv) [PDF]

open access: yesRadio Physics and Radio Astronomy, 2018
Purpose: overview of the main results of half a century activities of Ukraine (with emphasis on the last decade) in the field of decameter radio astronomy, presenting a number of astrophysical discoveries in the study of the Solar system, Galaxy and ...
A. A. Konovalenko
doaj   +1 more source

Lensing by galaxy haloes in clusters of galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1997
17 pages, LaTeX file, MNRAS in ...
Natarajan, Priyamvada, Kneib, Jean-Paul
openaire   +2 more sources

Galaxy harassment and the evolution of clusters of galaxies [PDF]

open access: yesNature, 1996
Disturbed spiral galaxies with high rates of star formation pervaded clusters of galaxies just a few billion years ago, but nearby clusters exclude spirals in favor of ellipticals. ``Galaxy harassment" (frequent high speed galaxy encounters) drives the morphological transformation of galaxies in clusters, provides fuel for quasars in subluminous hosts ...
Moore, Ben   +4 more
openaire   +2 more sources

A Heuristic Evaluation of Partitioning Techniques Considering Early-Type Galaxy Databases

open access: yesEngineering Proceedings, 2023
Galaxies are one of the most interesting and complex astronomical objects statistically due to their continuous diversification caused mainly due to incidents such as accretion, action, or mergers. Multivariate studies are one of the most useful tools to
Prithwish Ghosh, Shinjon Chakraborty
doaj   +1 more source

On the Incompleteness of Birkhoff’s Theorem: A New Approach to the Central Symmetric Gravitational Field in Vacuum Space

open access: yesReports in Advances of Physical Sciences, 2023
Birkhoff’s theorem (1923) states that in the framework of General Relativity the only solution to the central symmetric gravitational field in vacuum is the Schwarzschild metric.
Michel Canac
doaj   +1 more source

Quantitative Analysis of Galaxy‐Galaxy Lensing [PDF]

open access: yesThe Astrophysical Journal, 1997
20 pages, Plain-Tex, no macros needed, including 8 figures, submitted to Astrophysical ...
Schneider, Peter, Rix, Hans-Walter
openaire   +2 more sources

ASTROMETRY OF Χ AND H PERSEI BASED ON PROCESSING OF DIGITIZED PLATES OF ARCHIVE OF THE ASTRONOMICAL INSTITUTE OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF UZBEKISTAN

open access: yesOdessa Astronomical Publications, 2014
Work is done  with Epson Expression 10000XL scanner  of  Astronomical Institute  (AI)  of theAcademyofSciencesofUzbekistan. The plates were exposed  with theNormalastrograph (D/F = 330mm / 3467mm, M = 59.56"/mm). The  digitization  of  plates with(16x16)
M. M. Muminov   +5 more
doaj   +1 more source

The Millennium Galaxy Catalogue: Galaxy Bimodality [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractGalaxy bimodality is caused by the bulge-disc nature of galaxies as opposed to two distinct galaxy classes. This is evident in the colour-structure plane which clearly shows that elliptical galaxies (bulge-only) lie in the red compact peak and late-type spiral galaxies (disc-dominated) lie in the blue diffuse peak.
Driver, Simon P.   +2 more
openaire   +2 more sources

Meniscus Root Tear: Extended Classification and Arthroscopic Repair Techniques

open access: yesArthroscopy Techniques
The meniscus root is an attachment of the anterior and posterior horns of the meniscus onto the tibia, and its primary function is to prevent extrusion under axial load. Meniscus root tear constitutes 15% to 20% of meniscus tear.
Sheetal Gupta, M.S. (Orthopaedics)   +3 more
doaj   +1 more source

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