An unusually strong Einstein ring in the radio source PKS1830-211

D. L. Jauncey; J. E. Reynolds; A. K. Tzioumis; T. W.B. Muxlow; R. A. Perley; D. W. Murphy; R. A. Preston; E. A. King; A. R. Patnaik; D. L. Jones; D. L. Meier; D. J. Bird; D. G. Blair; J. D. Bunton; R. W. Clay; M. E. Costa; R. A. Duncan; R. H. Ferris; R. G. Gough; P. A. Hamilton; D. W. Hoard; A. Kemball; M. J. Kesteven; E. T. Lobdell; A. N. Lurten; P. M. McCulloch; J. D. Murray; G. D. Nicolson; A. P. Rao; A. Savage; M. W. Sinclair; L. Skjerve; L. Taaffe; R. M. Wark; G. L. White

doi:10.1038/352132a0

An unusually strong Einstein ring in the radio source PKS1830-211

D. L. Jauncey, J. E. Reynolds, A. K. Tzioumis, T. W.B. Muxlow, R. A. Perley, D. W. Murphy, R. A. Preston, E. A. King, A. R. Patnaik, D. L. Jones, D. L. Meier, D. J. Bird, D. G. Blair, J. D. Bunton, R. W. Clay, M. E. Costa, R. A. Duncan, R. H. Ferris, R. G. Gough, P. A. HamiltonD. W. Hoard, A. Kemball, M. J. Kesteven, E. T. Lobdell, A. N. Lurten, P. M. McCulloch, J. D. Murray, G. D. Nicolson, A. P. Rao, A. Savage, M. W. Sinclair, L. Skjerve, L. Taaffe, R. M. Wark, G. L. White

Research output: Contribution to journal › Article › peer-review

Abstract

RADIO observations of the strong, flat-spectrum radio source PKS1830-211 revealed a double structure, with a separation of 1 arcsec, suggesting that it might be a gravitationally lensed object¹. We have now obtained high-resolution radio images of PKS1830-211 from several interferometric radiotelescope networks, which show an unusual elliptical ring-like structure connecting the two brighter components. The presence of the ring, and the similarity of the two brighter spots, argue strongly that this is indeed a gravitationally lensed system, specifically an Einstein ring in which lens and lensed object are closely aligned. Although the source is close to the galactic plane, it seems that both the lens and background (lensed) object are extragalactic. This object is one hundred times brighter than either of the two previously discovered radio Einstein rings, and is among the six brightest flat-spectrum sources in the sky. Its brightness makes it a peculiar object: it must involve either a chance alignment of a lensing object with an unusually bright background source, or an alignment with a less bright object but amplified to an unusual degree.

Original language	English (US)
Pages (from-to)	132-134
Number of pages	3
Journal	Nature
Volume	352
Issue number	6331
DOIs	https://doi.org/10.1038/352132a0
State	Published - 1991
Externally published	Yes

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Jauncey, D. L., Reynolds, J. E., Tzioumis, A. K., Muxlow, T. W. B., Perley, R. A., Murphy, D. W., Preston, R. A., King, E. A., Patnaik, A. R., Jones, D. L., Meier, D. L., Bird, D. J., Blair, D. G., Bunton, J. D., Clay, R. W., Costa, M. E., Duncan, R. A., Ferris, R. H., Gough, R. G., ... White, G. L. (1991). An unusually strong Einstein ring in the radio source PKS1830-211. Nature, 352(6331), 132-134. https://doi.org/10.1038/352132a0

Jauncey, DL, Reynolds, JE, Tzioumis, AK, Muxlow, TWB, Perley, RA, Murphy, DW, Preston, RA, King, EA, Patnaik, AR, Jones, DL, Meier, DL, Bird, DJ, Blair, DG, Bunton, JD, Clay, RW, Costa, ME, Duncan, RA, Ferris, RH, Gough, RG, Hamilton, PA, Hoard, DW, Kemball, A, Kesteven, MJ, Lobdell, ET, Lurten, AN, McCulloch, PM, Murray, JD, Nicolson, GD, Rao, AP, Savage, A, Sinclair, MW, Skjerve, L, Taaffe, L, Wark, RM & White, GL 1991, 'An unusually strong Einstein ring in the radio source PKS1830-211', Nature, vol. 352, no. 6331, pp. 132-134. https://doi.org/10.1038/352132a0

@article{77f62e1d16d34a49bea8a887d6bf2c5d,

title = "An unusually strong Einstein ring in the radio source PKS1830-211",

abstract = "RADIO observations of the strong, flat-spectrum radio source PKS1830-211 revealed a double structure, with a separation of 1 arcsec, suggesting that it might be a gravitationally lensed object1. We have now obtained high-resolution radio images of PKS1830-211 from several interferometric radiotelescope networks, which show an unusual elliptical ring-like structure connecting the two brighter components. The presence of the ring, and the similarity of the two brighter spots, argue strongly that this is indeed a gravitationally lensed system, specifically an Einstein ring in which lens and lensed object are closely aligned. Although the source is close to the galactic plane, it seems that both the lens and background (lensed) object are extragalactic. This object is one hundred times brighter than either of the two previously discovered radio Einstein rings, and is among the six brightest flat-spectrum sources in the sky. Its brightness makes it a peculiar object: it must involve either a chance alignment of a lensing object with an unusually bright background source, or an alignment with a less bright object but amplified to an unusual degree.",

author = "Jauncey, {D. L.} and Reynolds, {J. E.} and Tzioumis, {A. K.} and Muxlow, {T. W.B.} and Perley, {R. A.} and Murphy, {D. W.} and Preston, {R. A.} and King, {E. A.} and Patnaik, {A. R.} and Jones, {D. L.} and Meier, {D. L.} and Bird, {D. J.} and Blair, {D. G.} and Bunton, {J. D.} and Clay, {R. W.} and Costa, {M. E.} and Duncan, {R. A.} and Ferris, {R. H.} and Gough, {R. G.} and Hamilton, {P. A.} and Hoard, {D. W.} and A. Kemball and Kesteven, {M. J.} and Lobdell, {E. T.} and Lurten, {A. N.} and McCulloch, {P. M.} and Murray, {J. D.} and Nicolson, {G. D.} and Rao, {A. P.} and A. Savage and Sinclair, {M. W.} and L. Skjerve and L. Taaffe and Wark, {R. M.} and White, {G. L.}",

year = "1991",

doi = "10.1038/352132a0",

language = "English (US)",

volume = "352",

pages = "132--134",

journal = "Nature",

issn = "0028-0836",

publisher = "Nature Publishing Group",

number = "6331",

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TY - JOUR

T1 - An unusually strong Einstein ring in the radio source PKS1830-211

AU - Jauncey, D. L.

AU - Reynolds, J. E.

AU - Tzioumis, A. K.

AU - Muxlow, T. W.B.

AU - Perley, R. A.

AU - Murphy, D. W.

AU - Preston, R. A.

AU - King, E. A.

AU - Patnaik, A. R.

AU - Jones, D. L.

AU - Meier, D. L.

AU - Bird, D. J.

AU - Blair, D. G.

AU - Bunton, J. D.

AU - Clay, R. W.

AU - Costa, M. E.

AU - Duncan, R. A.

AU - Ferris, R. H.

AU - Gough, R. G.

AU - Hamilton, P. A.

AU - Hoard, D. W.

AU - Kemball, A.

AU - Kesteven, M. J.

AU - Lobdell, E. T.

AU - Lurten, A. N.

AU - McCulloch, P. M.

AU - Murray, J. D.

AU - Nicolson, G. D.

AU - Rao, A. P.

AU - Savage, A.

AU - Sinclair, M. W.

AU - Skjerve, L.

AU - Taaffe, L.

AU - Wark, R. M.

AU - White, G. L.

PY - 1991

Y1 - 1991

N2 - RADIO observations of the strong, flat-spectrum radio source PKS1830-211 revealed a double structure, with a separation of 1 arcsec, suggesting that it might be a gravitationally lensed object1. We have now obtained high-resolution radio images of PKS1830-211 from several interferometric radiotelescope networks, which show an unusual elliptical ring-like structure connecting the two brighter components. The presence of the ring, and the similarity of the two brighter spots, argue strongly that this is indeed a gravitationally lensed system, specifically an Einstein ring in which lens and lensed object are closely aligned. Although the source is close to the galactic plane, it seems that both the lens and background (lensed) object are extragalactic. This object is one hundred times brighter than either of the two previously discovered radio Einstein rings, and is among the six brightest flat-spectrum sources in the sky. Its brightness makes it a peculiar object: it must involve either a chance alignment of a lensing object with an unusually bright background source, or an alignment with a less bright object but amplified to an unusual degree.

AB - RADIO observations of the strong, flat-spectrum radio source PKS1830-211 revealed a double structure, with a separation of 1 arcsec, suggesting that it might be a gravitationally lensed object1. We have now obtained high-resolution radio images of PKS1830-211 from several interferometric radiotelescope networks, which show an unusual elliptical ring-like structure connecting the two brighter components. The presence of the ring, and the similarity of the two brighter spots, argue strongly that this is indeed a gravitationally lensed system, specifically an Einstein ring in which lens and lensed object are closely aligned. Although the source is close to the galactic plane, it seems that both the lens and background (lensed) object are extragalactic. This object is one hundred times brighter than either of the two previously discovered radio Einstein rings, and is among the six brightest flat-spectrum sources in the sky. Its brightness makes it a peculiar object: it must involve either a chance alignment of a lensing object with an unusually bright background source, or an alignment with a less bright object but amplified to an unusual degree.

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U2 - 10.1038/352132a0

DO - 10.1038/352132a0

M3 - Article

AN - SCOPUS:0040628587

SN - 0028-0836

VL - 352

SP - 132

EP - 134

JO - Nature

JF - Nature

IS - 6331

ER -

An unusually strong Einstein ring in the radio source PKS1830-211

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