CYBERSKA
A Cyberinfrastructure platform to meet the needs of data intensive radio astronomy on route to the SKA |
Radio sources with ultra-high polarisation
A sample of 129 unresolved radio sources with ultra-high linear polarisation (>30 per cent) has been selected from the NVSS (NRAO VLA Sky Survey). Such high average linear polarisation is unusual in extragalactic sources. Higher resolution ATCA (Australia Telescope Compact Array) and VLA (Very...Tags: mnras, arxiv, polarization, agn, nvss, sdss, vla, atca, galaxy, unresolved
4363 days ago
Tags: sdss, agn, galaxies
4352 days ago
Tags: high energy astrophysical phenomena, xray, agn, xmm, radio, arxiv, a&a
4350 days ago
Multiwavelength Observations of Radio-quiet Quasars with Weak Emission Lines
We present radio and X-ray observations, as well as optical light curves, for a subset of 26 BL Lac candidates from the Sloan Digital Sky Survey (SDSS) lacking strong radio emission and with z<2.2. Half of these 26 objects are shown to be stars, galaxies, or absorbed quasars. We conclude that ...Tags: arxivs, mnras, agn, xray, sdss
4348 days ago
Tags: high energy astrophysical phenomena, mnras, arxiv, agn, ir, luminosity
4341 days ago
Clustering of radio galaxies and quasars
We compute the cross-correlation between a sample of 14 000 radio-loud active galactic nuclei (RLAGN) with redshifts between 0.4 and 0.8 selected from the Sloan Digital Sky Survey and a reference sample of 1.2 million luminous red galaxies in the same redshift range. We quantify how the clus...Tags: agn, sdss
4332 days ago
Tags: agn, goods
4324 days ago