4995 1984QR CCD Spectrum

4997 Ksana CCD Spectrum

49Cr: Towards full spectroscopy up to 4 MeV

4BOUNCE and VBOUNCE - Models for the study of contamination transport and dynamics

4C +01.30: An X-shaped Radio Source with a Quasar Nucleus

4C +12.50: A Superluminal Precessing Jet in the Recent Merger System IRAS 13451+1232

4C 02.27: what is inside a double-double radio quasar?

4C 18.68: A QSO with precessing radio jets?

4C 23.56 field deep imaging (Knopp+ 1997)

4C 29.30 - Extended optical line and radio emission in a probable galaxy merger

4C 29.47 - Quasi-periodic outbursts recorded by precessing jets?

4C 32.69 - A quasar with a radio jet

4C 39.24: discovery of a `giant' radio galaxy at z=1.88

4C 39.25: Multi-epoch polarisation observations at 15, 22 and 43 GHz

4C 39.25: Witnessing the interaction between a moving and a stationary component

4C 39.29 - extended emission around a powerful Type 2 quasar

4C 40.36 - A radio galaxy at a redshift of 2.3

4C 41.17 - A radio galaxy at a redshift of 3.8

4C 61.20 and OF-024 - Optically active extragalactic radio sources

4C equatorial sample VLA observations. II. (Jackson+, 1999)