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Results 1 to 20 of 197 for query "Léon V. E. Koopmans". (0.02 sec.)

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Massive Dark-matter halos and Evolution of Early-type Galaxies to z=1
Tommaso Treu; Leon V.E. Koopmans;
19 Dec 2003 / Astrophys.J. 611 (2004) 739-760

CLASS B0827+525: `Dark lens' or binary radio-loud quasar?
L.V.E. Koopmans; A.G.de Bruyn; C.D. Fassnacht; D.R. Marlow; D. Rusin; R.D. Blandford; I.W.A. Browne; P. Helbig; N. Jackson; S.T. Myers; T.J. Pearson; A.C.S. Readhead; P.N. Wilkinson; E. Xanthopoulos; H. Hoekstra;
19 Jul 2000 / Astron.Astrophys. 361 (2000) 815

A time-delay determination from VLA light curves of the CLASS gravitational lens B1600+434
L.V.E. Koopmans; A.G. de Bruyn; E. Xanthopoulos; C.D. Fassnacht;
31 Dec 1999

The Lenses Structure & Dynamics Survey: The internal structure and evolution of E/S0 galaxies and the determination of H_0 from time-delay systems
L.V.E. Koopmans; T.Treu;
4 Aug 2003

The Hubble Constant from the Gravitational Lens B1608+656
L.V.E. Koopmans; T. Treu; C.D. Fassnacht; R.D. Blandford; G. Surpi;
11 Jun 2003 / Astrophys.J. 599 (2003) 70-85

The Hubble Constant from (CLASS) Gravitational Lenses
L.V.E. Koopmans & the CLASS collaboration;
19 Dec 2000

On the Probability of Microlensing in GRB Afterglows
L.V.E. Koopmans; J. Wambsganss;
1 Nov 2000 / Mon.Not.Roy.Astron.Soc. 325 (2001) 1317

The Influence of Central Black Holes on Gravitational Lenses
S. Mao; H.J. Witt; L.V.E. Koopmans;
2 Jul 2000 / Mon.Not.Roy.Astron.Soc. 323 (2001) 301

B0218+357: Time Delays and New MERLIN/VLA 5GHz Maps of the Einstein Ring
A. D. Biggs; I. W. A. Browne; P. N. Wilkinson; T. W. B. Muxlow; P. Helbig; L. V. E. Koopmans;
22 Sep 1999

10.

The edge-on spiral gravitational lens B1600+434
L.V.E. Koopmans; A.G. de Bruyn; N. Jackson ( Kapteyn Astronomical Institute NFRA NRAL Jodrell Bank;
20 Dec 1997

11.

The Structure and Dynamics of Luminous and Dark Matter in the Early-Type Lens Galaxy of 0047-281 at z=0.485
L.V.E. Koopmans; T. Treu;
17 May 2002 / Astrophys.J. 583 (2003) 606-615

12.

Keck spectroscopy of CLASS gravitational lenses
J.P McKean; L.V.E. Koopmans; I.W.A. Browne; C.D. Fassnacht; R.D. Blandford; L.M. Lubin; A.C.S. Readhead;
4 Feb 2004 / Mon.Not.Roy.Astron.Soc. 350 (2004) 167

13.

Extrinsic Radio Variability of JVAS/CLASS Gravitational Lenses
L.V.E. Koopmans; A. Biggs; R.D. Blandford; I.W.A. Browne; N.J. Jackson; S. Mao; P.N. Wilkinson; A.G. de Bruyn; J. Wambsganss;
11 Feb 2003 / Astrophys.J. 595 (2003) 712-718

14.

A Determination of H_0 with the CLASS Gravitational Lens B1608+656: III. A Significant Improvement in the Precision of the Time Delay Measurements
C. D. Fassnacht; E. Xanthopoulos; L. V. E. Koopmans; D. Rusin;
22 Aug 2002 / Astrophys.J. 581 (2002) 823-835

15.

HI kinematics in a massive spiral galaxy at z=0.89
L.V.E. Koopmans; A.G. de Bruyn;
25 Nov 2003

16.

The stellar velocity dispersion of the lens galaxy in MG2016+112 at z=1.004
L.V.E. Koopmans; T. Treu;
2 Dec 2001

17.

Radio Microlensing: Past, Present & Near Future
L.V.E. Koopmans; A.G. de Bruyn; C.D. Fassnacht; J. Wambsganss; R.D. Blandford; + CLASS collaboration;
1 Nov 2000

18.

Microlensing of multiply-imaged compact radio sources: Evidence for compact halo objects in the disk galaxy of B1600+434
L.V.E. Koopmans; A.G. de Bruyn;
7 Apr 2000

19.

Gravitational Imaging of CDM Substructure
L.V.E. Koopmans;
16 Dec 2004

20.

Gravitational Lensing & Stellar Dynamics: Dark-Matter and Baryons in Early-type Galaxies to z=1
L.V.E. Koopmans;
22 Dec 2004 / Proc.Sci. BDMH2004 (2004) 066

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