Results 91 to 100 of about 509,719 (323)
Annual Review of Astronomy and Astrophysics, 2011 The disks of disk galaxies contain a substantial fraction of their baryonic matter and angular momentum, and much of the evolutionary activity in these galaxies, such as the formation of stars, spiral arms, bars and rings, and the various forms of secular evolution, takes place in their disks. The formation and evolution of galactic disks are therefore
van der Kruit, P C, Freeman, Kenneth
openaire +4 more sources
Catalog of Visually Classified Galaxies in the Local ($z\sim0.01$) Universe [PDF]
, 2015 The morphological types of 5840 galaxies were classified by a visual inspection of color images using the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) to produce a morphology catalog of a representative sample of local galaxies with $z<0.01$. The sample galaxies are almost complete for galaxies brighter than $r_{pet}=17.77$.
arxiv +1 more source
Modeling Galaxy-Galaxy Weak Lensing with SDSS Groups [PDF]
MNRAS,394:1016-1030,2009, 2008 We use galaxy groups selected from the Sloan Digital Sky Survey (SDSS) together with mass models for individual groups to study the galaxy-galaxy lensing signals expected from galaxies of different luminosities and morphological types. We compare our model predictions with the observational results obtained from the SDSS by Mandelbaum et al. (2006) for
arxiv +1 more source
The clustering of galaxies in the sdss-iii baryon oscillation spectroscopic survey: Baryon acoustic oscillations in the data release 9 spectroscopic galaxy sample [PDF]
, 2012 We present a one per cent measurement of the cosmic distance scale from the detections of the baryon acoustic oscillations in the clustering of galaxies from the Baryon Oscillation Spectroscopic Survey (BOSS), which is part of the Sloan Digital Sky ...
L. Anderson +64 more
semanticscholar +1 more source
Genomic Insights into Post‐Domestication Expansion and Selection of Body Size in Ponies
Advanced Science, EarlyView.The authors’ research delves into the history of ponies by assembling a pony genome and integrating horse genomes. This unveils genetic connections between Asian and European pony breeds. Cis‐regulatory elements of key genes impacting body size are also identified.
Xingzheng Li +23 more
wiley +1 more source
Disks Controlling Chaos in a 3D Dynamical Model for Elliptical Galaxies
Open Astronomy, 2011 A 3D dynamical model with a quasi-homogeneous core and a disk component is used for the chaos control in the central parts of elliptical galaxy.
Zotos Euaggelos E.
doaj +1 more source
Modeling the Rising Tails of Galaxy Rotation Curves
Galaxies, 2019 It is well known, but under-appreciated in astrophysical applications, that it is possible for gravity to take on a life of its own in the form of Weyl-curvature-only metrics (note that we are referring to the Weyl-only solutions of ordinary General ...
Fan Zhang
doaj +1 more source
Viewing Classical Radio Galaxies with the Upgraded GMRT and MeerKAT—A Progress Report
Galaxies, 2021 We present a progress report of a study of FR I and FR II radio galaxies. Several new morphological features in the radio emission are now revealed using the high (μJy) sensitivity reached in the range 550–1712 MHz, more than a factor of three, at the ...
Dharam V. Lal +12 more
doaj +1 more source
Evolutionary population synthesis: models, analysis of the ingredients and application to high‐z galaxies [PDF]
, 2004 Evolutionary population synthesis models for a wide range of metallicities, ages, star formation histories, initial mass functions and horizontal branch morphologies, including blue morphologies at high metallicity, are computed.
C. Maraston
semanticscholar +1 more source