<i>Hubble Space Telescope</i>
                    Imaging of Compact Steep Spectrum Radio Sources

deVries, WH; O'dea, C. P.; Baum, S. A.; Sparks, W. B.; Biretta, J. A.; deKoff, S; Golombek, Daniel; Lehnert, M. D.; Macchetto, F.; McCarthy, Patrick J.; Miley, G. K.

doi:10.1086/313001

Cited by 87 publications

(47 citation statements)

References 31 publications

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“…3C 456 (z = 0.233): the radio core of this FR II galaxy lies within 1 of the optical core position (Harvanek & Hardcastle 1998). The near IR shows extended emission (de Vries et al 1997). 3C 459 (z = 0.02): this steep spectrum ULIRG (IRAS 23140+0348) shows optical absorption features suggestive of young stellar populations (Miller 1981) and broad wings on both Hα and Hβ (Yee & Oke 1978).…”

Section: Appendix A: Notes On Individual Galaxiesmentioning

confidence: 94%

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ISOCAM survey and dust models of 3CR radio galaxies and quasars

Siebenmorgen

Freudling

Krügel

et al. 2004

A&A

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Abstract. We present a survey of all 3CR sources imaged with ISOCAM onboard the Infrared Space Observatory (ISO).The sample consists mostly of radio-loud active galactic nuclei (AGN). For each source, we present spatially integrated midinfrared (MIR, 5−18 µm) fluxes measured from newly calibrated ISOCAM images. In total, we detected 68 objects of the 3CR catalogue, at redshifts z ≤ 2.5, and obtained upper limits for 17 objects. In addition, we detected 10 galaxies not listed in the 3CR catalogue. The one with the highest redshift is 4C+72.26 at z = 3.53. ISOCAM data are combined with other photometric measurements to construct the spectral energy distribution (SED) from optical to radio wavelengths. The MIR emission may include synchrotron radiation of the AGN, stars of the host galaxy or dust. Extrapolation of radio core fluxes to the MIR show that the synchrotron contribution is in most cases negligible. In order to describe dust emission we apply new radiative transfer models. In the models the dust is heated by a central source which emits photons up to energies of 1 keV. By varying three parameters, luminosity, effective size and extinction, we obtain a fit to the SED for our objects. Our models contain also dust at large (several kpc) distances from the AGN. Such a cold dust component was neglected in previous computations which therefore underestimated the AGN contribution to the far infrared (FIR). In 53 cases (∼75% of our detected 3CR sources), the MIR emission can be attributed to dust. The hot dust component is mainly due to small grains and PAHs. The modelling demonstrates that AGN heating suffices to explain the ISO broad band data, starburst activity is not necessary. In the models, a type 1 AGN is represented by a compact dust distribution, the dust is therefore very warm and emission of PAHs is weak because of photo-destruction. In AGNs of type 2, the dust is relatively colder but PAH bands are strong.

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Section: Appendix A: Notes On Individual Galaxiesmentioning

confidence: 94%

“…3C 343 (z = 0.988): an optically elongated and not very centrally concentrated quasar. The optical and radio emissions may have similar shapes (de Vries et al 1997). 3C 343.1 (z = 0.75): no radio core has been detected (Ludke et al 1998).…”

Section: Appendix A: Notes On Individual Galaxiesmentioning

confidence: 99%

ISOCAM survey and dust models of 3CR radio galaxies and quasars

Siebenmorgen

Freudling

Krügel

et al. 2004

A&A

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“…We give two reasons: (1) the GPS and CSS sources must interact with the host galaxy as they propagate through it. The discovery of emission line gas aligned with and presumably co-spatial with the CSS radio sources and the presence of broad and complex integrated emission line profiles (Gelderman & Whittle 1994) indicates that the radio source is strongly interacting with the ambient gas (de Vries et al 1997(de Vries et al , 1999Axon et al 2000). Therefore, we would expect shocks to contribute strongly to the ionization of the gas (e.g.…”

Section: Introductionmentioning

confidence: 98%

HST/STIS low dispersion spectroscopy of three Compact Steep Spectrum sources

Labiano¹,

O’Dea²,

Gelderman³

et al. 2005

A&A

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Abstract. We present Hubble Space Telescope Imaging Spectrograph long-slit spectroscopy of the emission line nebulae in the compact steep spectrum radio sources 3C 67, 3C 277.1, and 3C 303.1. We derive BPT (Baldwin-Philips-Terlevich; Baldwin et al. 1981) diagnostic emission line ratios for the nebulae which are consistent with a mix of shock excitation and photoionization in the extended gas. In addition, line ratios indicative of lower ionization gas are found to be associated with higher gas velocities. The results are consistent with a picture in which these galaxy scale radio sources interact with dense clouds in the interstellar medium of the host galaxies, shocking the clouds thereby ionizing and accelerating them.

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“…Moreover, the eastern component of the optical image (de Vries et al 1997) is brighter and more extended than the western one, as on would expect a galaxy of that redshift to appear. The high resolution radio map galaxy with z = 0.344 clearly shows the classic bipolar radio ejection coming out in opposite directions from its center.…”

Section: Association Between the Two Componentsmentioning

confidence: 94%

“…The relation of the radio emission isophotes to the optical isophotes is shown in images published by de Vries et al (1997) where the Hubble Space Telescope imaging of a number of compact steep-spectrum sources is shown. Figure 2.26 of de Vries et al shows, at the top, the HST/WFPC image of 3C 343.1.…”

Section: Radio Propertiesmentioning

confidence: 99%

The double radio source 3C 343.1: A galaxy-QSO pair with very different redshifts

Arp

Burbidge²,

Burbidge³

2004

A&A

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Abstract. The strong radio source 3C 343.1 consists of a galaxy and a QSO separated by no more than about 0.25 . The chance of this being an accidental superposition is conservatively ∼1 × 10 −8 . The z = 0.344 galaxy is connected to the z = 0.750 QSO by a radio bridge. The numerical relation between the two redshifts is that predicted from previous associations. This pair is an extreme example of many similar physical associations of QSOs and galaxies with very different redshifts.

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Hubble Space Telescope Imaging of Compact Steep Spectrum Radio Sources

Cited by 87 publications

References 31 publications

ISOCAM survey and dust models of 3CR radio galaxies and quasars

ISOCAM survey and dust models of 3CR radio galaxies and quasars

HST/STIS low dispersion spectroscopy of three Compact Steep Spectrum sources

The double radio source 3C 343.1: A galaxy-QSO pair with very different redshifts

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