Light on dark lenses

N. Jackson; P. Helbig; I. W. A. Browne; L. Koopmans

doi:10.1016/S1387-6473(98)00028-1

Light on dark lenses

N. Jackson^*, P. Helbig, I. W. A. Browne, L. Koopmans

^*Corresponding author for this work

Astronomy

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Abstract

We present an update of the status of the Cosmic Lens All-Sky Survey (CLASS). Twelve lenses have been found to date in CLASS together with the earlier Jodrell Bank-VLA Astrometric Survey (JVAS). Six other sources are under investigation as possible lenses. To date, all lens systems studied optically have been shown to have associated lensing galaxies to a limiting I magnitude of 23-24. These observations place severe constraints on published claims that dark ( M/L > 100 ) galaxies form a significant fraction of the general population of galaxies.

Original language	English
Pages (from-to)	97-100
Number of pages	4
Journal	New Astronomy Reviews
Volume	42
Issue number	2
DOIs	https://doi.org/10.1016/S1387-6473(98)00028-1
Publication status	Published - 1-Aug-1998

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title = "Light on dark lenses",

abstract = "We present an update of the status of the Cosmic Lens All-Sky Survey (CLASS). Twelve lenses have been found to date in CLASS together with the earlier Jodrell Bank-VLA Astrometric Survey (JVAS). Six other sources are under investigation as possible lenses. To date, all lens systems studied optically have been shown to have associated lensing galaxies to a limiting I magnitude of 23-24. These observations place severe constraints on published claims that dark ( M/L > 100 ) galaxies form a significant fraction of the general population of galaxies.",

author = "N. Jackson and P. Helbig and Browne, {I. W. A.} and L. Koopmans",

year = "1998",

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doi = "10.1016/S1387-6473(98)00028-1",

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T1 - Light on dark lenses

AU - Jackson, N.

AU - Helbig, P.

AU - Browne, I. W. A.

AU - Koopmans, L.

PY - 1998/8/1

Y1 - 1998/8/1

N2 - We present an update of the status of the Cosmic Lens All-Sky Survey (CLASS). Twelve lenses have been found to date in CLASS together with the earlier Jodrell Bank-VLA Astrometric Survey (JVAS). Six other sources are under investigation as possible lenses. To date, all lens systems studied optically have been shown to have associated lensing galaxies to a limiting I magnitude of 23-24. These observations place severe constraints on published claims that dark ( M/L > 100 ) galaxies form a significant fraction of the general population of galaxies.

AB - We present an update of the status of the Cosmic Lens All-Sky Survey (CLASS). Twelve lenses have been found to date in CLASS together with the earlier Jodrell Bank-VLA Astrometric Survey (JVAS). Six other sources are under investigation as possible lenses. To date, all lens systems studied optically have been shown to have associated lensing galaxies to a limiting I magnitude of 23-24. These observations place severe constraints on published claims that dark ( M/L > 100 ) galaxies form a significant fraction of the general population of galaxies.

U2 - 10.1016/S1387-6473(98)00028-1

DO - 10.1016/S1387-6473(98)00028-1

M3 - Article

SN - 1387-6473

VL - 42

SP - 97

EP - 100

JO - New Astronomy Reviews

JF - New Astronomy Reviews

IS - 2

ER -

Light on dark lenses

Abstract

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