| Issue |
A&A
Volume 389, Number 1, July I 2002
|
|
|---|---|---|
| Page(s) | 115 - 125 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361:20020576 | |
| Published online | 14 June 2002 | |
The B3–VLA CSS sample
II. VLBA images at 18 cm
1
Dipartimento di Astronomia, Universitá di Bologna, Via Ranzani 1, 40127 Bologna, Italy
2
Istituto di Radioastronomia del CNR, via Gobetti 101, 40129 Bologna, Italy
3
Dipartimento di Fisica, Universitá di Bologna, via Irnerio 46, 40126 Bologna, Italy
4
Istituto di Radioastronomia del CNR, CP 141, 96017 Noto SR, Italy
Corresponding author: D. Dallacasa, ddallaca@ira.cnr.it
Received:
22
January
2002
Accepted:
11
April
2002
VLBA observations at 18 cm are presented for 28 Compact Steep–spectrum radio Sources (CSSs) from the B3–VLA CSS sample. These sources were unresolved in previous VLA observations at high frequencies or their brightness distribution was dominated by an unresolved steep spectrum component. More than half of them also showed a low frequency turnover in their radio spectrum. The VLBA images display in most cases a compact symmetric structure. Only in a minority of cases complex morphologies are present.
Key words: galaxies: active / radio continuum: galaxies / quasars: general
© ESO, 2002
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