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CYBERSKA
A Cyberinfrastructure platform to meet the needs of data intensive radio astronomy on route to the SKA |
Results for "galaxies"
Tags
Wide-angle tail galaxies in ATLAS
We present radio images of a sample of six Wide-Angle Tail (WAT) radio sources identified in the ATLAS 1.4 GHz radio survey, and new spectroscopic redshifts for four of these sources. These WATs are in the redshift range of 0.1469 - 0.3762, and we find evidence of galaxy overdensities in the vici...Tags: atlas, galaxies, wats, wat
4689 days ago
- Using the Sloan Digital Sky Survey (SDSS) data release 4 (DR 4), we investigate the spatial distribution of low and high surface brightness galaxies (LSBs and HSBs, respectively). In particular, we focus our attention on the influence of interactions between galaxies on the star formation strengt...
Tags: sdss, agn, galaxies
4627 days ago
PyMorph: Automated Galaxy Structural Parameter Estimation using Python
We present a new software pipeline -- PyMorph -- for automated estimation of structural parameters of galaxies. Both parametric fits through a two dimensional bulge disk decomposition as well as structural parameter measurements like concentration, asymmetry etc. are supported. The pipeline is de...Tags: python, galaxies, mnras, arxiv, extragalactic astrophysics, methods
4624 days ago
Probing the first galaxies with the SKA
Observations of anisotropies in the brightness temperature of the 21 cm line of neutral hydrogen from the period before reionization would shed light on the dawn of the first stars and galaxies. In this paper, we use large-scale semi-numerical simulations to analyse the imprint on the 21 cm signa...Tags: cosmology, extragalactic astrophysics, arxiv, ska, galaxies
4583 days ago
