95 citations · 1.1k across the 56 of their papers we have counts for
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A sample of radio-loud QSOs at redshift ~ 4
J. Holt, C. R. Benn, M. Vigotti +5
We obtained spectra of 60 red, starlike objects (E< 18.8) identified with FIRST radio sources, S_{1.4GHz} > 1 mJy. Eight are QSOs with redshift z> 3.6.Combined with our pilot searc…
ESO422-G028: The Host Galaxy of a GRG
M. Jamrozy, J. Kerp, U. Klein +2
ESO422-G028 denotes the very center cD-galaxy of the giant radio source B0503-286 (Saripalli et al. 1986, Subrahmanya and Hunstead, 1986). The angular extent of the associated radi…
In-Situ Particle Acceleration in Extragalactic Radio Hot Spots: Observations Meet Expectations
G. Brunetti, K. -H. Mack, M. A. Prieto +1
We discuss, in terms of particle acceleration, the results from optical VLT observations of hot spots associated with radio galaxies. On the basis of observational and theoretical…
The spectral-curvature parameter: an alternative tool for the analysis of synchrotron spectra
B. W. Sohn, U. Klein, K. -H. Mack
The so-called Spectral Curvature Parameter(SCP), when plotted versus the high-frequency spectral index () of synchrotron sources, provides crucial parameters on the c…
Decline of the space density of quasars between z=2 and z=4
M. Vigotti, R. Carballo, C. R. Benn +5
We define a new complete sample of 13 optically-luminous radio quasars M_AB(1450 Angstrom) < -26.9 mag and log P_1.4 GHz(W/Hz) > 25.7 with redshift 3.8 < z < 4.5, obtained by cross…