activity
20002003
most citedObservations of HI Absorbing Gas in Compact Radio Sources at Cosmological Redshifts

137 citations · 171 across the 5 of their papers we have counts for

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5 papers

astro-ph2003★ 137 cited

Observations of HI Absorbing Gas in Compact Radio Sources at Cosmological Redshifts

R. C. Vermeulen, Y. M. Pihlstroem, W. Tschager +12

We present an overview of the occurrence and properties of atomic gas associated with compact radio sources at redshifts up to z=0.85. Searches for HI 21cm absorption were made wit…

astro-ph2002★ 33 cited

Constraining the evolution of young radio-loud AGN

I. A. G. Snellen, K. -H. Mack, R. T. Schilizzi +1

GPS and CSS radio sources are the objects of choice to investigate the evolution of young radio-loud AGN. Previous investigations, mainly based on number counts and source size dis…

astro-ph2000

Young radio-loud AGN: A new sample at low redshift

I. A. G. Snellen, K. -H. Mack, W. Tschager +1

We report on the investigation of a complete sample of young radio-loud AGN at z<0.25, selected using the new comprehensive radio surveys and the optical APM/POSS-I catalog. This n…

astro-ph2000★ 1 cited

The GHz-Peaked Spectrum radio galaxy 2021+614: Detection of slow motion in a compact symmetric object

Wolfgang Tschager, Richard T. Schilizzi, Huub J. A. R"ottgering +2

We have analysed VSOP (VLBI Space Observatory Programme) data at 5 GHz and ground-based VLBI (Very Long Baseline Interferometry) data at 15 GHz for the GHz-Peaked Spectrum (GPS) ra…

astro-ph2000

A study of young radio-loud AGN using space-VLBI

Ignas Snellen, Wolfgang Tschager, Richard Schilizzi +2

Gigahertz Peaked Spectrum (GPS) sources form a key element in the study of the onset and evolution of radio-loud AGN, since they are most likely the young counterparts of extended…