SIMBAD references

2005MNRAS.356..232L - Mon. Not. R. Astron. Soc., 356, 232-236 (2005/January-1)

3C 223.1: A source with unusual spectral properties.

LAL D.V. and RAO A.P.

Abstract (from CDS):

Analysis of Giant Metrewave Radio Telescope low-frequency data for an X-shaped source, 3C 223.1, has revealed an unusual result. The radio morphologies of it at 240 and 610 MHz show a well defined X shape with a pair of active jets along the north-south axis and a pair of wings along the east-west axis, which pass symmetrically through the undetected radio core. The wings (or low-surface-brightness jets) have flatter spectral indices with respect to the high-surface-brightness jets; this confirms the earlier marginal result obtained at high frequency by Dennett-Thorpe et al. (2002). Although unusual, it is a valuable result which puts stringent constraints on the formation models and the nature of these sources. This result clearly shows the value of mapping the sample of X-shaped sources at low frequencies.

Abstract Copyright: 2004 RAS

Journal keyword(s): galaxies: active - galaxies: formation - galaxies: individual: 3C 223.1 - radio continuum: galaxies

CDS comments: Source 0834+555 = JVAS J0834+555, NVSS 2146+82 = NVSS J214530+815455.

Simbad objects: 4

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