High-resolution CCD imaging and derived gravitational lens models of 2237+0305

D. P. Schneider; E. L. Turner; J. E. Gunn; J. N. Hewitt; M. Schmidt; C. R. Lawrence

doi:10.1086/114758

High-resolution CCD imaging and derived gravitational lens models of 2237+0305

D. P. Schneider, E. L. Turner, J. E. Gunn, J. N. Hewitt, M. Schmidt, C. R. Lawrence

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

Abstract

Images of the gravitational lens 2237+0305 acquired in good seeing (FWHM ≤1arcsec) resolve the system into several components. At least five components reside in the central few arcseconds of the object: the nucleus of the galaxy (lens) and four point sources in a ringlike formation approximately centered on the galaxy. The diameter of this "ring" is ≈1.7arcsec. The four point sources are all distinctly bluer than the galaxy, but do not have identical colors. A simple model that assumes that these four objects are indeed images of the quasar and treats the lens as a constant mass-to-light ratio, elliptical, de Vaucouleurs bulge reproduces the observed configuration remarkably well.

Original language	English (US)
Pages (from-to)	1619-1628
Journal	Astronomical Journal
Volume	95
DOIs	https://doi.org/10.1086/114758
State	Published - Jun 1 1988

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http://adsabs.harvard.edu/abs/1988AJ.....95.1619S

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@article{6640e2e069a6453b95db7864d4e54bda,

title = "High-resolution CCD imaging and derived gravitational lens models of 2237+0305",

abstract = "Images of the gravitational lens 2237+0305 acquired in good seeing (FWHM ≤1arcsec) resolve the system into several components. At least five components reside in the central few arcseconds of the object: the nucleus of the galaxy (lens) and four point sources in a ringlike formation approximately centered on the galaxy. The diameter of this {"}ring{"} is ≈1.7arcsec. The four point sources are all distinctly bluer than the galaxy, but do not have identical colors. A simple model that assumes that these four objects are indeed images of the quasar and treats the lens as a constant mass-to-light ratio, elliptical, de Vaucouleurs bulge reproduces the observed configuration remarkably well.",

author = "Schneider, \{D. P.\} and Turner, \{E. L.\} and Gunn, \{J. E.\} and Hewitt, \{J. N.\} and M. Schmidt and Lawrence, \{C. R.\}",

year = "1988",

month = jun,

day = "1",

doi = "10.1086/114758",

language = "English (US)",

volume = "95",

pages = "1619--1628",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

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TY - JOUR

T1 - High-resolution CCD imaging and derived gravitational lens models of 2237+0305

AU - Schneider, D. P.

AU - Turner, E. L.

AU - Gunn, J. E.

AU - Hewitt, J. N.

AU - Schmidt, M.

AU - Lawrence, C. R.

PY - 1988/6/1

Y1 - 1988/6/1

N2 - Images of the gravitational lens 2237+0305 acquired in good seeing (FWHM ≤1arcsec) resolve the system into several components. At least five components reside in the central few arcseconds of the object: the nucleus of the galaxy (lens) and four point sources in a ringlike formation approximately centered on the galaxy. The diameter of this "ring" is ≈1.7arcsec. The four point sources are all distinctly bluer than the galaxy, but do not have identical colors. A simple model that assumes that these four objects are indeed images of the quasar and treats the lens as a constant mass-to-light ratio, elliptical, de Vaucouleurs bulge reproduces the observed configuration remarkably well.

AB - Images of the gravitational lens 2237+0305 acquired in good seeing (FWHM ≤1arcsec) resolve the system into several components. At least five components reside in the central few arcseconds of the object: the nucleus of the galaxy (lens) and four point sources in a ringlike formation approximately centered on the galaxy. The diameter of this "ring" is ≈1.7arcsec. The four point sources are all distinctly bluer than the galaxy, but do not have identical colors. A simple model that assumes that these four objects are indeed images of the quasar and treats the lens as a constant mass-to-light ratio, elliptical, de Vaucouleurs bulge reproduces the observed configuration remarkably well.

U2 - 10.1086/114758

DO - 10.1086/114758

M3 - Article

SN - 0004-6256

VL - 95

SP - 1619

EP - 1628

JO - Astronomical Journal

JF - Astronomical Journal

ER -

High-resolution CCD imaging and derived gravitational lens models of 2237+0305

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