Results 51 to 60 of about 452,479 (297)

Compression and Classification Methods for Galaxy Spectra in Large Redshift Surveys [PDF]

open access: yes, 2000
Methods for compression and classification of galaxy spectra, which are useful for large galaxy redshift surveys (such as the SDSS, 2dF, 6dF and VIRMOS), are reviewed.
Lahav, Ofer
core   +3 more sources

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

Weak Lensing by Galaxies in Groups and Clusters: I.--Theoretical Expectations [PDF]

open access: yes, 2006
Galaxy-galaxy lensing is rapidly becoming one of the most promising means to accurately measure the average relation between galaxy properties and halo mass. In order to obtain a signal of sufficient signal-to-noise, one needs to stack many lens galaxies
Bartelmann   +111 more
core   +2 more sources

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

The galaxy environment in GAMA G3C groups using the Kilo Degree Survey Data Release 3 [PDF]

open access: yes, 2018
We aim to investigate the galaxy environment in GAMA Galaxy Groups Catalogue (G3C) using a volume-limited galaxy sample from the Kilo Degree Survey Data Release 3.
Bilicki, M.   +15 more
core   +5 more sources

Wedge-less V-Shaped Distal Femoral Osteotomy Through Lateral Approach to Correct Valgus Malalignment

open access: yesArthroscopy Techniques
Coronal-plane deformities of the knee are prevalent skeletal abnormalities in the adolescent population. Although valgus alignment is observed less frequently than varus alignment, it predisposes patients to several pathologic sequelae, including ...
Sheetal Gupta, M.S.(Orthopaedics)   +4 more
doaj   +1 more source

Light Elements in the Universe

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Due to their production sites, as well as to how they are processed and destroyed in stars, the light elements are excellent tools to investigate a number of crucial issues in modern astrophysics: from stellar structure and non-standard processes at work
Sofia Randich, Laura Magrini
doaj   +1 more source

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