VLA polarimetry of compact steep spectrum sources

被引：9
|
作者：
Mantovani, F
Junor, W
Fanti, R
Padrielli, L
Saikia, DJ
机构：
[1] UNIV NEW MEXICO,INST ASTROPHYS,ALBUQUERQUE,NM 87131
[2] UNIV BOLOGNA,DIPARTIMENTO FIS,BOLOGNA,ITALY
[3] TATA INST FUNDAMENTAL RES,NATL CTR RADIO ASTROPHYS,PUNE 411007,MAHARASHTRA,INDIA
来源：
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1997年 / 125卷 / 03期
关键词：
galaxies; active; quasars; radio polarization; interferometry;
D O I：
10.1051/aas:1997244
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the polarization properties at sub-arcsecond resolutions of 8 Compact Steep-spectrum Sources (CSSs) observed with the VLA A-array at 5, 8.4 and 15 GHz. We find that the three most compact sources, two of which are unresolved and have an angular diameter < 100 milliarcsec are not polarized. Of the remaining 5, the two associated with quasars have prominent radio jets while the two galaxies and one unidentified object are dominated by their lobe emission. The components of these medium sized objects with median values of percentage polarization of about 9% at 5 GHz and 11% at 8.4 GHz, are more strongly polarized than the compact sources and do not show evidence of very large rotation measures.
引用
收藏
页码：573 / 580
页数：8
相关论文
共 50 条
  • [1] MERLIN AND VLA OBSERVATIONS OF COMPACT STEEP-SPECTRUM RADIO-SOURCES
    SPENCER, RE
    MCDOWELL, JC
    CHARLESWORTH, M
    FANTI, C
    PARMA, P
    PEACOCK, JA
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1989, 240 (03) : 657 - 687
  • [2] Radio polarimetry of compact steep spectrum sources at sub-arcsecond resolution
    Mantovani, F.
    Rossetti, A.
    Junor, W.
    Saikia, D. J.
    Salter, C. J.
    [J]. ASTRONOMY & ASTROPHYSICS, 2013, 555
  • [3] THE EVOLUTION OF COMPACT STEEP SPECTRUM SOURCES
    DEYOUNG, DS
    [J]. ASTROPHYSICAL JOURNAL, 1993, 402 (01): : 95 - 108
  • [4] The evolution of compact steep-spectrum sources
    Jeyakumar, S
    Saikia, DJ
    [J]. RADIO EMISSION FROM GALACTIC AND EXTRAGALACTIC COMPACT SOURCES, 1998, 144 : 295 - 296
  • [5] Extreme Depolarization in Compact Steep Spectrum sources
    Garrington, S. T.
    Akujor, C. E.
    [J]. International Astronomical Union - Symposium, (175):
  • [6] Extreme depolarization in compact steep spectrum sources
    Garrington, ST
    Akujor, CE
    [J]. EXTRAGALACTIC RADIO SOURCES, 1996, (175): : 77 - 78
  • [7] Are compact steep-spectrum sources young?
    Fanti, C.
    Fanti, R.
    Dallacasa, D.
    Schilizzi, R.T.
    Spencer, R.E.
    Stanghellini, C.
    [J]. Astronomy and Astrophysics, 1995, 302 : 317 - 326
  • [8] ARE COMPACT STEEP-SPECTRUM SOURCES YOUNG
    FANTI, C
    FANTI, R
    DALLACASA, D
    SCHILIZZI, RT
    SPENCER, RE
    STANGHELLINI, C
    [J]. ASTRONOMY & ASTROPHYSICS, 1995, 302 (02) : 317 - 326
  • [9] COMPACT STEEP-SPECTRUM 3-CR SOURCES - VLA OBSERVATIONS AT 1.5, 15 AND 22.5 GHZ
    VANBREUGEL, WJM
    FANTI, C
    FANTI, R
    STANGHELLINI, C
    SCHILIZZI, RT
    SPENCER, RE
    [J]. ASTRONOMY & ASTROPHYSICS, 1992, 256 (01) : 56 - 78
  • [10] The determination of the spectral turnover in faint Compact Steep-Spectrum radio sources using the VLA at 74 MHz
    Tschager, W
    Schilizzi, RT
    Röttgering, HJA
    Snellen, IAG
    Miley, GK
    Perley, RA
    [J]. ASTRONOMY & ASTROPHYSICS, 2003, 402 (01) : 171 - 179
12345