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The Current Status of CLASS

Helbig, Phillip

Publication date

January 2001

Publisher

EDP Sciences

Abstract

I give a brief overview of the current status of some aspects of the Cosmic Lens All-Sky Survey (CLASS): description of the survey, current list of lens systems, cosmological parameters from lensing statistics, H_0 from time delays, dark lenses, wide-separation lenses

Extracted data

Related items

CLASS B1555+375: A New Four-Image Gravitational Lens System

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CLASS: Cosmic Lens All-Sky Survey

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Jackson, N. J. F.
Browne, I. W. A.
de Bruyn, A. G.
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Norbury, M.
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Blandford, R D
Fassnacht, C D
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McKean, J P
Norbury, M A
Phillips, P M
Rusin, D
Shepherd, M C
Sykes, C M

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The Cosmic Lens All-Sky Survey (CLASS) is an international collaborative program which has obtained ...

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Helbig, Phillip
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Wilkinson, P. N.
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Myers, S. T.
Fassnacht, C. D.
Koopmans, L. V. E.
Marlow, D. R.
Norbury, M.
Rusin, D.
Sykes, C. M.
Biggs, A. D.
Blandford, R. D.
de Bruyn, A. G.
Chae, K.-H.
Helbig, Phillip
King, L. J.
McKean, J. P.
Pearson, T. J.
Phillips, P. M.
Readhead, A. C. S.
Xanthopoulos, E.
York, T.

May 2003

peer reviewedWe report the final results of the search for gravitationally lensed flat-spectrum radi...

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Marlow, D. R.
Wilkinson, P. N.
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Perez-Fournon, I.

January 1998

The Jodrell Bank VLA Astrometric Survey (JVAS) and the Cosmic Lens All-Sky Survey (CLASS) aim to obs...

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York, T.
Jackson, N.
Browne, I. W. A.
Koopmans, L. V. E.
McKean, J. P.
Norbury, M. A.
Biggs, A. D.
Blandford, R. D.
de Bruyn, A. G.
Fassnacht, C. D.
Myers, S. T.
Pearson, T. J.
Phillips, P. M.
Readhead, A. C. S.
Rusin, D.
Wilkinson, P. N.

July 2005

We report on the discovery of the new gravitational lens system CLASS B0631+519. Imaging with the Ve...

CLASS B1555+375: A New Four-Image Gravitational Lens System

Marlow, D. R.
Myers, S. T.
Rusin, D.
Jackson, N.
Browne, I. W. A.
Wilkinson, P. N.
Muxlow, T.
Fassnacht, C. D.
Lubin, L.
Kundíc, T.
Blandford, R. D.
Pearson, T. J.
Readhead, A. C. S.
Koopmans, L.
de Bruyn, A. G.

August 1999

We have discovered a new gravitational lens in the Cosmic Lens All-Sky Survey. The lens B1555+375 is...

CLASS B0739+366: A New Two-Image Gravitational Lens System

Marlow, D. R.
Rusin, D.
Norbury, M.
Jackson, N.
Browne, I. W. A.
Wilkinson, P. N.
Fassnacht, C. D.
Myers, S. T.
Koopmans, L. V. E.
Blandford, R. D.
Pearson, T. J.
Readhead, A. C. S.
de Bruyn, A. G.

February 2001

We present the discovery of CLASS B0739+366, a new gravitational lens system from the Cosmic Lens Al...

The Cosmic Lens All-Sky Survey parent population - I. Sample selection and number counts

McKean, J. P.
Browne, I. W. A.
Jackson, N. J.
Fassnacht, C. D.
Helbig, Phillip

May 2007

peer reviewedWe present the selection of the Jodrell Bank Flat-spectrum (JBF) radio source sample, w...

The Current Status of CLASS

Helbig, P

January 2000

Abstract: I give a brief overview of the current status of some aspects of the Cosmic Lens All-Sky S...

The Cosmic Lens All-Sky Survey - I. Source selection and observations

Myers, S. T.
Jackson, N. J.
Browne, I. W. A.
de Bruyn, A. G.
Pearson, T. J.
Readhead, A. C. S.
Wilkinson, P. N.
Biggs, A. D.
Blandford, R. D.
Fassnacht, C. D.
Koopmans, L. V. E.
Marlow, D. R.
McKean, J. P.
Norbury, M. A.
Phillips, P. M.
Rusin, D.
Shepherd, M. C.
Sykes, C. M.

May 2003

The Cosmic Lens All-Sky Survey (CLASS) is an international collaborative programme which has obtaine...

CLASS: Cosmic Lens All-Sky Survey

Myers, Steven T.
Jackson, N. J. F.
Browne, I. W. A.
de Bruyn, A. G.
Readhead, A. C. S.
Wilkinson, P. N.
Fassnacht, C. D.
Koopmans, L. V. E.
Marlow, D. R.
Norbury, M.
Rusin, D.
Biggs, A. D.
Blandford, R. D.
Helbig, Phillip
Pearson, T. J.
Xanthopoulos, E.

January 2001

editorial reviewedThe Cosmic Lens All-Sky Survey (CLASS), is an international (USA, UK and Netherlan...

The Cosmic Lens All-Sky Survey: I. Source selection and observations

Myers, S T
Jackson, N J
Browne, I W A
De Bruyn, A G
Pearson, T J
Readhead, A C S
Wilkinson, P N
Biggs, A D
Blandford, R D
Fassnacht, C D
Koopmans, L V E
Marlow, D R
McKean, J P
Norbury, M A
Phillips, P M
Rusin, D
Shepherd, M C
Sykes, C M

November 2002

The Cosmic Lens All-Sky Survey (CLASS) is an international collaborative program which has obtained ...

Light on dark lenses

Jackson, N.
Helbig, Phillip
Browne, I. W. A.
Koopmans, L.

August 1998

We present an update of the status of the Cosmic Lens All-Sky Survey (CLASS). Twelve lenses have bee...

Studies of gravitational lens systems discovered in the Cosmic Lens All-Sky Survey

Rusin, David Joseph

January 2001

This thesis describes research conducted on and inspired by the Cosmic Lens All-Sky Survey (CLASS), ...

The Cosmic Lens All-Sky Survey: II. Gravitational lens candidate selection and follow-up

Browne, I W A
Wilkinson, P N
Jackson, N J F
Myers, S T
Fassnacht, C D
Koopmans, L V E
Marlow, D R
Norbury, M A
Rusin, D
Sykes, C M
Biggs, A D
Blandford, R D
De Bruyn, A G
Chae, K H
Helbig, P
King, L J
McKean, J P
Pearson, T J
Phillips, P M
Readhead, A C S
Xanthopoulos, E
York, T

November 2002

We report the final results of the search for gravitationally lensed flat-spectrum radio sources fou...

The Cosmic Lens All-Sky Survey - II. Gravitational lens candidate selection and follow-up

Browne, I. W. A.
Wilkinson, P. N.
Jackson, N. J. F.
Myers, S. T.
Fassnacht, C. D.
Koopmans, L. V. E.
Marlow, D. R.
Norbury, M.
Rusin, D.
Sykes, C. M.
Biggs, A. D.
Blandford, R. D.
de Bruyn, A. G.
Chae, K.-H.
Helbig, Phillip
King, L. J.
McKean, J. P.
Pearson, T. J.
Phillips, P. M.
Readhead, A. C. S.
Xanthopoulos, E.
York, T.

May 2003

peer reviewedWe report the final results of the search for gravitationally lensed flat-spectrum radi...

Constraining the Value of the Cosmological Constant Using JVAS/CLASS Lensing Statistics

Marlow, D. R.
Wilkinson, P. N.
Helbig, Phillip
Browne, I. W. A.
Jackson, N.
Perez-Fournon, I.

January 1998

The Jodrell Bank VLA Astrometric Survey (JVAS) and the Cosmic Lens All-Sky Survey (CLASS) aim to obs...

CLASS B0631+519:Last of the cosmic lens all-sky survey lenses

York, T.
Jackson, N.
Browne, I. W. A.
Koopmans, L. V. E.
McKean, J. P.
Norbury, M. A.
Biggs, A. D.
Blandford, R. D.
de Bruyn, A. G.
Fassnacht, C. D.
Myers, S. T.
Pearson, T. J.
Phillips, P. M.
Readhead, A. C. S.
Rusin, D.
Wilkinson, P. N.

July 2005

We report on the discovery of the new gravitational lens system CLASS B0631+519. Imaging with the Ve...

CLASS B1555+375: A New Four-Image Gravitational Lens System

Marlow, D. R.
Myers, S. T.
Rusin, D.
Jackson, N.
Browne, I. W. A.
Wilkinson, P. N.
Muxlow, T.
Fassnacht, C. D.
Lubin, L.
Kundíc, T.
Blandford, R. D.
Pearson, T. J.
Readhead, A. C. S.
Koopmans, L.
de Bruyn, A. G.

August 1999

We have discovered a new gravitational lens in the Cosmic Lens All-Sky Survey. The lens B1555+375 is...

CLASS B0739+366: A New Two-Image Gravitational Lens System

Marlow, D. R.
Rusin, D.
Norbury, M.
Jackson, N.
Browne, I. W. A.
Wilkinson, P. N.
Fassnacht, C. D.
Myers, S. T.
Koopmans, L. V. E.
Blandford, R. D.
Pearson, T. J.
Readhead, A. C. S.
de Bruyn, A. G.

February 2001

We present the discovery of CLASS B0739+366, a new gravitational lens system from the Cosmic Lens Al...

The Cosmic Lens All-Sky Survey parent population - I. Sample selection and number counts

McKean, J. P.
Browne, I. W. A.
Jackson, N. J.
Fassnacht, C. D.
Helbig, Phillip

May 2007

peer reviewedWe present the selection of the Jodrell Bank Flat-spectrum (JBF) radio source sample, w...