High-resolution observations of radio sources with 0.6 &lt; z&lt;= 1.0

Mullin, L. M.; Hardcastle, M. J.; Riley, J. M.

doi:10.1111/j.1365-2966.2006.10763.x

Cited by 37 publications

(41 citation statements)

References 32 publications

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“…In the case of 3C 265, the Eastern hotspot is the brightest of two and also has most of the polarized flux. At 610 MHz, we detect extended emission towards west, which is barely detected at 1.4 GHz by [5] with similar resolution as at 610 MHz; this emission is not detected at 4.85 GHz or 8.4 GHz [7]. The extended emission is found to be weakly polarized at 1.4 GHz [5], however, we do not detect any polarization at 610 MHz.…”

Section: Resultssupporting

confidence: 54%

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Polarimetric images with the GMRT

Joshi¹,

Chengalur²

2010

Proceedings of ISKAF2010 Science Meeting — PoS(ISKAF2010)

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Section: Resultssupporting

confidence: 54%

“…Resolution for 3C 79 is 8.4X5.5 arcmin and that for 3C 265 is 5.0X4.8 arcmin. The contours are drawn at levels 3mJy × 3,5,7,10,14,20,28,40,56,80…”

mentioning

confidence: 99%

Polarimetric images with the GMRT

Joshi¹,

Chengalur²

2010

Proceedings of ISKAF2010 Science Meeting — PoS(ISKAF2010)

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“…4. It shows the ∼9 double-lobed morphology reported previously (Mullin et al 2006) and an unresolved core with a flux density of 0.8 mJy (Figure 1). …”

Section: Karl G Jansky Very Large Arraymentioning

confidence: 82%

“…The deepest radio image of 3C 220.3 to date, at λ = 6 cm by Mullin et al (2006), shows the double-lobed morphology but not the unresolved core. With the aim of detecting the core, we observed 3C 220.3 with the Karl G. JVLA in its long-baseline A configuration on UT 2012 November 30 employing 25 antennas.…”

Section: Karl G Jansky Very Large Arraymentioning

confidence: 99%

3c 220.3: A Radio Galaxy Lensing a Submillimeter Galaxy

Haas¹,

Leipski²,

Barthel³

et al. 2014

ApJ

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Herschel Space Observatory photometry and extensive multiwavelength follow-up have revealed that the powerful radio galaxy (PRG) 3C 220.3 at z = 0.685 acts as a gravitational lens for a background submillimeter galaxy (SMG) at z = 2.221. At an observed wavelength of 1 mm, the SMG is lensed into three distinct images. In the observed near infrared, these images are connected by an arc of ∼1 .8 radius forming an Einstein half-ring centered near the radio galaxy. In visible light, only the arc is apparent. 3C 220.3 is the only known instance of strong galaxy-scale lensing by a PRG not located in a galaxy cluster and therefore it offers the potential to probe the dark matter content of the radio galaxy host. Lens modeling rejects a single lens, but two lenses centered on the radio galaxy host A and a companion B, separated by 1 .5, provide a fit consistent with all data and reveal faint candidates for the predicted fourth and fifth images. The model does not require an extended common dark matter halo, consistent with the absence of extended bright X-ray emission on our Chandra image. The projected dark matter fractions within the Einstein radii of A (1 .02) and B (0 .61) are about 0.4 ± 0.3 and 0.55 ± 0.3. The mass to i-band light ratios of A and B, M/L i ∼ 8 ± 4 M L −1 , appear comparable to those of radio-quiet lensing galaxies at the same redshift in the CfA-Arizona Space Telescope LEns Survey, Lenses Structure and Dynamics, and Strong Lenses in the Legacy Survey samples. The lensed SMG is extremely bright with observed f (250 μm) = 440 mJy owing to a magnification factor μ ∼ 10. The SMG spectrum shows luminous, narrow C iv λ1549 Å emission, revealing that the SMG houses a hidden quasar in addition to a violent starburst. Multicolor image reconstruction of the SMG indicates a bipolar morphology of the emitted ultraviolet (UV) light suggestive of cones through which UV light escapes a dust-enshrouded nucleus.

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“…Best et al (1997) showed the HS intricacies in their 8.4 GHz VLA A-, B-and C-array map. In an additional study by Mullin et al (2006), the eastern lobe was shown to be resolved into two peaks in their 0.4 arcsec resolution 5 GHz VLA map. Figure 19(a) presents the total intensity image of 3C 340 at 0.77 arcsec resolution from only the B-configuration data.…”

Section: Several Featuresmentioning

confidence: 95%

VLA observations of 20 FR II radio sources at 8.4 GHz

Fernini

2019

Astrophys Space Sci

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We report the last observational paper of hot spots for 20 Fanaroff-Riley class II (FR II) sources. These sources are part of a large sample of 98 FR II to study the unification scheme of FR II radio galaxies (RGs) and quasars (QSRs) using the hotspots (HSs) location and morphology. Highresolution VLA observations at 8.4 GHz were conducted for the whole sample. The investigation of HSs properties in FR II radio sources is essential for a better understanding of the dynamics related to the objects and their impact on the surrounding environment. HSs were classified into edged and recessed types, where the former is located at a radio lobe's outer edge, and the latter is embedded within the lobe. The present sub-sample contains 12 RGs and 8 QSRs. Radio contour maps for each source were presented using the VLA in its A and B configurations. In total, we have identified 18 HSs for these 20 radio sources. The 12 RGs possess 8 edged HSs and 2 recessed HSs. The 8 QSRs possess 6 edged HSs and 2 recessed HSs. Out of the 14 edged HSs, RGs and QSRs possess ∼ 57% and ∼ 43%, respectively. A thorough morphological discussion of the 20 sources with their HSs is presented in the present work.

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High-resolution observations of radio sources with 0.6 < z<= 1.0

Cited by 37 publications

References 32 publications

Polarimetric images with the GMRT

Polarimetric images with the GMRT

3c 220.3: A Radio Galaxy Lensing a Submillimeter Galaxy

VLA observations of 20 FR II radio sources at 8.4 GHz

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