Publications

ADS entries

astro-ph and gr-qc preprints

Refereed Journals
Theses
Conferences, workshops (posters and talks)
Seminar talks and colloquia
Lectures
Popular and public talks
Other reports, talks, etc
Preprints

Refereed Journals

High-Resolution Optical and Near-Infrared Imaging of the Quadruple Quasar RX J0911.4+0551
I. Burud, F. Courbin, C. Lidman, A.O. Jaunsen, J. Hjorth, R. Østensen, M.I. Andersen, J.W. Clasen, O. Wucknitz, G. Meylan, P. Magain, R. Stabell, S. Refsdal
ApJ 501 (1998) L5
ADS bibcode 1998ApJ...501L...5B
astro-ph/9803175

Detection of the lensing galaxy in HE 2149-2745
S. Lopez, O. Wucknitz, L. Wisotzki
A&A 339 (1998) L13
ADS bibcode 1998A&A...339L..13L
astro-ph/9809170

First estimate of the time delay in HE 1104-1805
L. Wisotzki, O. Wucknitz, S. Lopez, A.N. Sørensen
A&A 339 (1998) L73
ADS bibcode 1998A&A...339L..73W
astro-ph/9810181

The extreme high frequency peaked BL Lac 1517+656
V. Beckmann, N. Bade, O. Wucknitz
A&A 352 (1999) 395
ADS bibcode 1999A&A...352..395B
astro-ph/9910440

Degeneracies and scaling relations in general power-law models for gravitational lenses
O. Wucknitz
MNRAS 332 (2002) 951
DOI: 10.1046/j.1365-8711.2002.05426.x (http) or 10.1046/j.1365-8711.2002.05426.x (doi)
ADS bibcode 2002MNRAS.332..951W
astro-ph/0202376

Global 8.4-GHz VLBI observations of JVAS B0218+357
A. D. Biggs, O. Wucknitz, R. W. Porcas, I. W. A. Browne, N. J. Jackson, S. Mao, P. N. Wilkinson
MNRAS 338 (2003) 599
DOI: 10.1046/j.1365-8711.2003.06050.x (http) or 10.1046/j.1365-8711.2003.06050.x (doi)
ADS bibcode 2003MNRAS.338..599B
astro-ph/0209182

The HRX-BL Lac sample -- evolution of BL Lac objects
V. Beckmann, D. Engels, N. Bade, O. Wucknitz
A&A 401 (2003) 927
DOI: 10.1051/0004-6361:20030184 (http) or 10.1051/0004-6361:20030184 (doi)
ADS bibcode 2003A&A...401..927B
astro-ph/0302242

Disentangling microlensing and differential extinction in the double QSO HE0512-3329
O. Wucknitz, L. Wisotzki, S. Lopez, M.D. Gregg
A&A 405 (2003) 445
DOI: 10.1051/0004-6361:20030608 (http) or 10.1051/0004-6361:20030608 (doi)
ADS bibcode 2003A&A...405..445W
astro-ph/0304435

LensClean revisited
O. Wucknitz
MNRAS 349 (2004) 1-13
DOI: 10.1111/j.1365-2966.2004.07513.x (http) or 10.1111/j.1365-2966.2004.07513.x (doi)
ADS bibcode 2004MNRAS.349....1W
astro-ph/0312262

Models for the lens and source of B0218+357: a LensClean approach to determine H₀
O. Wucknitz, A.D. Biggs, I.W.A. Browne
MNRAS 349 (2004) 14-30
DOI: 10.1111/j.1365-2966.2004.07514.x (http) or 10.1111/j.1365-2966.2004.07514.x (doi)
ADS bibcode 2004MNRAS.349...14W
astro-ph/0312263

Deflection of light and particles by moving gravitational lenses
Olaf Wucknitz, Ulrich Sperhake
Phys. Rev. D 69 (2004) 063001
DOI: 10.1103/PhysRevD.69.063001 (http) or 10.1103/PhysRevD.69.063001 (doi)
ADS bibcode 2004PhRvD..69f3001W
astro-ph/0401362

The Hubble constant from gravitational lens CLASS B0218+357 using the Advanced Camera for Surveys
T. York, N. Jackson, I.W.A. Browne, O. Wucknitz, J.E. Skelton
MNRAS 357 (2005) 124
DOI: 10.1111/j.1365-2966.2004.08618.x (http) or 10.1111/j.1365-2966.2004.08618.x (doi)
ADS bibcode 2005MNRAS.357..124Y
astro-ph/0405115

Metal Abundances in a Damped LyA System Along Two Lines of Sight at z=0.93
Sebastian Lopez, Dieter Reimers, Michael D. Gregg, Lutz Wisotzki, Olaf Wucknitz, and Andres Guzman
ApJ 626 (2005) 767
DOI: 10.1086/429956 (http) or 10.1086/429956 (doi)
ADS bibcode 2005ApJ...626..767L
astro-ph/0503026

LensCLEANing B0218+357
Olaf Wucknitz
Poster presented at the JENAM 2003 meeting, workshop Radio Astronomy at 70: from Karl Jansky to microjansky
Baltic Astronomy 14 (2005) 409-412
ADS bibcode 2005BaltA..14..409W

VLBI phase-reference observations of the gravitational lens JVAS B0218+357
Rupal Mittal, Richard Porcas, Olaf Wucknitz, Andy Biggs, Ian Browne
A&A 447 (2006) 515
DOI: 10.1051/0004-6361:20054012 (http) or 10.1051/0004-6361:20054012 (doi)
ADS bibcode 2006A&A...447..515M
astro-ph/0508198

Highly-magnified multiply imaged Radio counterpart of the Sub-mm Starburst Emission in the Cluster-Lens MS0451.6-0305
A. Berciano Alba, M.A. Garrett, L.V.E. Koopmans, O. Wucknitz
A&A 462 (2007) 903
DOI: 10.1051/0004-6361:20065223 (http) or 10.1051/0004-6361:20065223 (doi)
ADS bibcode 2007A&A...462..903B
astro-ph/0603466

Free-free absorption in the gravitational lens JVAS B0218+357
Rupal Mittal, Richard Porcas, Olaf Wucknitz
A&A 465 (2007) 405
DOI: 10.1051/0004-6361:20066127 (http) or 10.1051/0004-6361:20066127 (doi)
ADS bibcode 2007A&A...465..405M
astro-ph/0607623

A deep, high resolution survey of the low frequency radio sky
E. Lenc, M.A. Garrett, O. Wucknitz, J.M. Anderson, S.J. Tingay
ApJ 673 (2008) 78
DOI: 10.1086/524295 (http) or 10.1086/524295 (doi)
ADS bibcode 2008ApJ...673...78L
arXiv:0710.1946

From planes to spheres - About gravitational lens magnifications
O. Wucknitz
MNRAS 386 (2008) 230
DOI: 10.1111/j.1365-2966.2008.13017.x (http) or 10.1111/j.1365-2966.2008.13017.x (doi)
ADS bibcode 2008MNRAS.386..230W
arXiv:0801.3758

A gravitationally lensed water maser in the early Universe
Violette Impellizzeri, John McKean, Paola Castangia, Alan Roy, Christian Henkel, Andreas Brunthaler, Olaf Wucknitz
Nature 456 (2008) 927
DOI: 10.1038/nature07544 (http) or 10.1038/nature07544 (doi)
ADS bibcode 2008Natur.456..927I
arXiv:0901.1132

Radio counterpart of the lensed sub-mm emission in the cluster MS0451.6-0305: new evidence for the merger scenario
A. Berciano Alba, L.V.E. Koopmans, M.A. Garrett , O. Wucknitz, M. Limousin
A&A 509 (2010) 54
DOI: 10.1051/0004-6361/200912903 (http) or 10.1051/0004-6361/200912903 (doi)
ADS bibcode 2010A&A...509A..54B
arXiv:0910.1213

Very Large Array observations of the 8 o'clock arc lens system: radio emission and a limit on the star-formation rate
F. Volino, O. Wucknitz, J.P. McKean, M.A. Garrett
A&A 524 (2010) A79
DOI: 10.1051/0004-6361/201015140 (http) or 10.1051/0004-6361/201015140 (doi)
ADS bibcode 2010A&A...524A..79V
arXiv:1010.0655

A search for gravitationally lensed water masers in dusty quasars and star-forming galaxies
J.P. McKean, C.M.V. Impellizzeri, A.L. Roy, P. Castangia, F. Samuel, A. Brunthaler, C. Henkel, O. Wucknitz
MNRAS 410 (2010) 2506
DOI: 10.1111/j.1365-2966.2010.17617.x (http) or 10.1111/j.1365-2966.2010.17617.x (doi)
ADS bibcode 2011MNRAS.410.2506M
arXiv:1009.0290

Water vapour at high redshift: Arecibo monitoring of the megamaser in MG J0414+0534
P. Castangia, C. M. V. Impellizzeri, J. P. McKean, C. Henkel, A. Brunthaler, A. L. Roy, O. Wucknitz, J. Ott, and E. Momjian
A&A 529 (2011) A150
DOI: 10.1051/0004-6361/201016403 (http) or 10.1051/0004-6361/201016403 (doi)
arXiv:1103.4301

Observing pulsars and fast transients with LOFAR
B.W. Stappers et al. (including O. Wucknitz)
A&A 530 (2011) A80
DOI: 10.1051/0004-6361/201116681 (http) or 10.1051/0004-6361/201116681 (doi)
ADS bibcode 2011A&A...530A..80S
arXiv:1104.1577

A new perspective on the sub-mm galaxy MM18423+5938 at redshift 3.9296 from radio continuum imaging
J. P. McKean, A. Berciano Alba, F. Volino, V. Tudose, M. A. Garrett, A. F. Loenen, Z. Paragi, O. Wucknitz
MNRAS 414 (2011) L11
DOI: 10.1111/j.1745-3933.2011.01043.x (http) or 10.1111/j.1745-3933.2011.01043.x (doi)
arXiv:1103.0583

Optimized Trigger for Ultra-High-Energy Cosmic-Ray and Neutrino Observations with the Low Frequency Radio Array
K. Singh et al. (including O. Wucknitz)
Nuclear Instruments and Methods in Physics Research Section A 664 (2012) 171
DOI: 10.1016/j.nima.2011.10.041 (http) or 10.1016/j.nima.2011.10.041 (doi)
ADS bibcode 2012NIMPA.664..171S
arXiv:1108.5745

Wide-band Simultaneous Observations of Pulsars: Disentangling Dispersion Measure and Profile Variations
T.E. Hassall et al. (including O. Wucknitz)
A&A 543 (2012) A66
DOI: 10.1051/0004-6361/201218970 (http) or 10.1051/0004-6361/201218970 (doi)
ADS bibcode 2012arXiv1204.3864H
arXiv:1204.3864

First LOFAR observations at very low frequencies of cluster-scale non-thermal emission: the case of Abell 2256
R.J. van Weeren et al. (including O. Wucknitz)
A&A 543 (2012) A43
ADS bibcode 2012arXiv1205.4730V
arXiv:1205.4730

Theses

Lens Models for Compact and Extended Sources
O. Wucknitz
PhD thesis, finished April 2002
ADS bibcode 2002PhDT.........6W

Conferences, workshops (posters and talks)

First models for the quadruple RX J0911+0551
O. Wucknitz
Talk given at a Workshop on Gravitational Lensing at the "Centre for Advanced Study" in Oslo, June 1998

Degeneracies of the radial mass profile in lens models
O. Wucknitz, S. Refsdal
Poster presentation at the conference "Gravitational Lensing: Recent Progress and Future Goals" at Boston University, July 1999
ADS bibcode 2001glrp.conf..157W
astro-ph/9909291

Modelling the lens and source of B0218+357
O. Wucknitz
Talk given at the CERES workshop "The birth and early years of extragalactic radio sources" in Puerto de la Cruz, Tenerife, 11. January 2000

Frequency-dependent flux ratios in B0218+357
O. Wucknitz
Talk given at the last CERES workshop in Linoperamata, Crete, 28. June 2001

Reducing systematic uncertainties of H₀ from gravitational lensing
O. Wucknitz
Poster presentation at the conference A New Era In Cosmology at the University of Durham, 11-15 September 2001
ADS bibcode 2002nec..conf..190W
astro-ph/0112330

EVN/Global observations of the Gravitational Lens JVAS B0218+357 at 8.4 GHz
A. D. Biggs, O. Wucknitz, R. W. Porcas, I. W. A. Browne, N. J. Jackson, S. Mao, P. N. Wilkinson
Poster presentation at the 6th European VLBI Network Symposium, Bonn, June 25-28, 2002
ADS bibcode 2002evlb.conf..199B

LensCLEAN models for JVAS B0218+357
O. Wucknitz
Talk given at the Ringberg workshop "Gravitational LENSES 2002", July 2002

Deflection of light and particles by moving gravitational lenses
Olaf Wucknitz, Ulrich Sperhake
Talk given at the JENAM 2003 meeting, workshop Gravitational Astrophysics

LensCLEANing B0218+357
Olaf Wucknitz
Poster presented at the JENAM 2003 meeting, workshop Radio Astronomy at 70: from Karl Jansky to microjansky
Baltic Astronomy 14 (2005) 409-412
ADS bibcode 2005BaltA..14..409W

The impact of model degeneracies on cosmological applications of gravitational lensing
Olaf Wucknitz
Invited talk at the conference Thinking, Observing and Mining the Universe in Sorrento, Italy, September 2003
ADS bibcode 2004otmu.conf..289W

Deflection of light and particles by moving gravitational lenses
Olaf Wucknitz, Ulrich Sperhake
Talk given at the ANGLES kickoff workshop 2004 at the MPIfR in Bonn, Germany, 6. April 2004

New LensClean results for B0218+357
Olaf Wucknitz
Poster presented at the IAU symposium 225 "Impact of Gravitational Lensing on Cosmology" at the EPFL in Lausanne, 19-23 July 2004

CLASS B0218+357 and the Hubble Constant
T. York, N. Jackson, I.W.A. Browne, O. Wucknitz, J. Skelton
Poster presented at the IAU symposium 225 "Impact of Gravitational Lensing on Cosmology" at the EPFL in Lausanne, 19-23 July 2004

Spectroscopic evidence for quasar microlensing
L. Wisotzki, S. Lopez, O. Wucknitz
Talk given by L. Wisotzki at the IAU symposium 225 "Impact of Gravitational Lensing on Cosmology" at the EPFL in Lausanne, 19-23 July 2004

A VLBI Study of the Gravitational Lens JVAS B0218+357
R. Mittal, R. Porcas, O. Wucknitz, A. Biggs
Poster presented at the 7th EVN Symposium 2004, Toledo, Spain, October 12-15, 2004
astro-ph/0412678

Shear effects in microlensing of large sources
O. Wucknitz
Talk presented at the workshop 25 years after the discovery: some current topics on lensed QSOs in Santander, Spain 15-17 December 2004

Can gravity lens gravity?
Olaf Wucknitz
Talk given at the ANGLES workshop 2005 in Crete on 5. April 2005

A Damped LyA System Along Two Lines of Sight at z=0.93
S. Lopez, D. Reimers, M. Gregg, L. Wisotzki, O. Wucknitz, A. Guzman
Poster presented at the conference Probing Galaxies Through QSO Absorption Lines in Shanghai, China, March 2005

Noise in Clean maps
O. Wucknitz
Short talk at the Bonn / Dwingeloo "Neighbourhood" meeting at the MPIfR on 22 September 2005

Lensing, data analysis and relativity
O. Wucknitz
Talk given at the ANGLES ESR+ER meeting 2006 in Äkäslompolo, Ylläs, Finland, 6-9 Feb 2006

Low-frequency VLBI observations of the gravitational lens 0218+357
O. Wucknitz
Talk given at the Nederlandse Astronomenconferentie 2006 on Ameland, 10 May 2006

Gravitational lensing
O. Wucknitz
Invited review talk at the 8th EVN symposium 2006 in Torun, 26-29 September 2006
PoS (8thEVN) (2006) 029
arXiv:0709.4005

Living life on the edge
E. Lenc, M. Garrett, O. Wucknitz, J. Anderson, S. Tingay
Poster presented at the 8th EVN symposium 2006 in Torun, 26-29 September 2006
PoS (8thEVN) (2006) 079

How can B0218+357 be isothermal ?
O. Wucknitz
Poster presented at the conference Applications Of Gravitational Lensing: Unique Insights Into Galaxy Formation And Evolution at the Kavli Institute for Theoretical Physics in Santa Barbara, 3-6 October 2006

Image coherence of gravitational lenses
O. Wucknitz
Talk given at the ANGLES workshop 2006 at the Dark Cosmology Centre in Copenhagen, Denmark, 14 November 2006

(Strong) Gravitational lensing and the EVN 2015
O. Wucknitz
EVN 2015 Vision Brainstorm at JIVE/ASTRON, Dwingeloo, 1-2 March 2007

Finding gravitational lenses with LOFAR
O. Wucknitz
Talk at the workshop Astrophysics in the LOFAR era in Emmen, NL, 23-27 April 2007

Lens surveys with LOFAR
O. Wucknitz
Talk at the ASTRON/JIVE AstroFest, Landgoed Overcinge (Havelte, NL), 3 July 2007

Gravitational lens surveys with LOFAR
Olaf Wucknitz, Mike Garrett
Poster presented at the conference “From planets to dark energy: The modern radio Universe” at the University of Manchester / Jodrell Bank Observatory, 1-5 October 2007
PoS (MRU) (2007) 142
arXiv:0806.0494

Searching for radio sources lensed by the cluster of galaxies Cl0024+1654
Filomena Volino, Olaf Wucknitz, Mike Garrett
Poster presented at the conference “From planets to dark energy: The modern radio Universe” at the University of Manchester / Jodrell Bank Observatory, 1-5 October 2007
PoS (MRU) (2007) 138

Radio, lenses and relativity
O. Wucknitz
Talk at the general AIfA workshop in Bad Honnef, 26-27 October 2007

Continuing progress in wide-field VLBI mapping at 90cm
O. Wucknitz, E. Lenc
Talk at the general Bonn/Dwingeloo neighbourhood meeting at JIVE/ASTRON in Dwingeloo, 30 October 2007

Lens surveys with LOFAR
O. Wucknitz
Talk at the workshop The prospects of LOFAR surveys at the Lorentz Center in Leiden, NL, 10-12 December 2007

Lens surveys with LOFAR
O. Wucknitz
Talk at the ANGLES "Final Whistle" workshop, 27-28 March 2008, Bonn

Something is rotten in the state of gravity - the flyby anomaly
O. Wucknitz
Talk at the ANGLES "Final Whistle" workshop, 27-28 March 2008, Bonn

Something is rotten in the state of gravity - the Pioneer and flyby anomalies
O. Wucknitz
Talk at the ESTRELA workshop, 7-11 April 2008, Bonn

Difference imaging in radio interferometry
O. Wucknitz
Talk presented at the workshop Astrophysics with E-LOFAR, 16-19 September 2008, Hamburg

The gravitational lens J1131-1231 - How to avoid missing an opportunity
O. Wucknitz, F. Volino
Poster presented at the 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy, 23-26 September 2008, Bologna
PoS (IX EVN Symposium) (2008) 102
arXiv:0811.3421

Lofar, E-Lofar and Low-Frequency VLBI
M.A. Garrett, H. Rampadarath, E. Lenc, Olaf Wucknitz
Invited talk at the 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy, 23-26 September 2008, Bologna
PoS (IX EVN Symposium) (2008) 024
arXiv:0902.2534

Efficient wide-field VLBI mapping
O. Wucknitz
Talk at the imaging and calibration workshop Algorithms2008 in Oxford, 2 December 2008

Difference imaging and multi-channel Clean
O. Wucknitz
Talk at the imaging and calibration workshop Algorithms2008 in Oxford, 3 December 2008

Lens searches with LOFAR
O. Wucknitz
Invited talk at the workshop The first science with LOFAR surveys at the Lorentz Center in Leiden, NL, 10-12 December 2008

The magnification theorem
O. Wucknitz
Talk in the symposium Three decades of gravitational lenses at JENAM 2009, 20-23 April 2009

The easy route to moving lenses
O. Wucknitz
Poster presented at the symposium Three decades of gravitational lenses at JENAM 2009, 20-23 April 2009

Wide-field VLBI imaging without supercomputers
O. Wucknitz
Talk in the symposium The next era in radio astronomy: the pathway to SKA at JENAM 2009, 20-23 April 2009

Efficient wide-field VLBI imaging
O. Wucknitz
Talk at a meeting of the LOFAR long baselines working group, 20 May 2009

Gravitational Lens Searches With LOFAR
O. Wucknitz
Talk at the workshop Strong Gravitational Lensing in the Next Decade in Cogne, Italy, 22-26 June 2009

Analysis of early LOFAR data with VLBI methods
O. Wucknitz
Talk at the workshop Surveying the low frequency sky with LOFAR at the Lorentz Center in Leiden, NL, 8-12 March 2010

Gravitational lensing
O. Wucknitz
Short talk at the workshop Surveying the low frequency sky with LOFAR at the Lorentz Center in Leiden, NL, 8-12 March 2010

Long baseline experiments with LOFAR
O. Wucknitz
Talk at the conference A New Golden Age for Radio Astronomy as part of the International SKA Forum 2010, 10-14 June 2010, Assen, NL.
PoS (ISKAF2010) (2010) 058
arXiv:1008.4358

Long baseline (and other) experiments with LOFAR
O. Wucknitz
Talk presented at Fourth meeting of GLOW in Bochum, 8 July 2010

High-resolution observations at long wavelengths: First results from international LOFAR
O. Wucknitz
Talk in the splinter meeting The Radio Sky: LOFAR to SKA at the AG annual meeting in Bonn, 14 Sep 2010

Efficient wide-field VLBI imaging
O. Wucknitz
Poster for the splinter meeting The Radio Sky: LOFAR to SKA at the AG annual meeting in Bonn, 14-17 Sep 2010

e-VLBI with LOFAR
O. Wucknitz
Talk at the 10th EVN symposium “VLBI and the new generation of radio arrays” in Manchester, UK, 23 September 2010
PoS (10th EVN Symposium) (2010) 050

Efficient wide-field VLBI imaging
O. Wucknitz
Poster presented at the 10th EVN symposium “VLBI and the new generation of radio arrays” in Manchester, UK, 21-24 September 2010
PoS (10th EVN Symposium) (2010) 100

New Global VLBI observations of the gravitational lensing system MG J0414+0534
F. Volino, O. Wucknitz, R.W. Porcas, E. Ros, J.P. McKean, A. Brunthaler, J.A. Munoz, P. Castangia, M.A. Garrett, C. Henkel, C.M.V. Impellizzeri, A. Roy
Proceedings of the 10th EVN symposium “VLBI and the new generation of radio arrays” in Manchester, UK, 21-24 September 2010
PoS (10th EVN Symposium) (2010) 029

Wide-field VLBI imaging of M31 - first results
M.K. Argo, J. Morgan, E. Lenc, O. Wucknitz, F. Mantovani, D. Fenech, S. Tingay
Proceedings of the 10th EVN symposium “VLBI and the new generation of radio arrays” in Manchester, UK, 21-24 September 2010
PoS (10th EVN Symposium) (2010) 019

e-VLBI with metre waves: Progress with the international LOFAR baselines
O. Wucknitz
Talk presented at the e-VLBI 2010 workshop at the Perth Zoo, 18-20 October 2010

Towards solar radio imaging with LOFAR
O. Wucknitz
Talk presented at the LOFAR Solar KSP Workshop IV at the Astrophysikalisches Institut Potsdam, 9 November 2010

Imaging the variable Sun
O. Wucknitz
Talk presented remotely at the LOFAR Transients KSP meeting, Southampton, 14-15 December 2010

LOFAR: Recent imaging results & future prospects
G. Heald et al. (including O. Wucknitz)
Proceedings of the "Diffuse Relativistic Plasmas" conference, Bangalore, 1-4 March 2011
Journal of Astrophysics and Astronomy (2011)
arXiv:1106.3195

Some long-baseline aspects of transients
O. Wucknitz
Talk presented at the LOFAR Transients KSP meeting, Amsterdam, 27-29 June 2011

Long baseline observations
O. Wucknitz
Talk presented at annual GLOW meeting in Bremen, 15 July 2011

High resolution observations with LOFAR
O. Wucknitz
Talk presented at the conference First Science with LOFAR in Dalfsen, NL, 15 September 2011

High resolution in space and time
O. Wucknitz
Talk presented at a conference of the LOFAR Transients Key Project, Meudon, France, 15 December 2011

General long baseline issues
O. Wucknitz
Talk presented at the LOFAR Long Baseline Week 1 at MPIfR/AIfA, Bonn, 21-25 May 2012

Phasing up the superterp
O. Wucknitz
Talk presented at the LOFAR Long Baseline Week 1 at MPIfR/AIfA, Bonn, 21-25 May 2012

Long baselines I
O. Wucknitz
Talk presented at annual GLOW meeting in Bielefeld, 18 June 2012

Long baselines II
O. Wucknitz
Talk presented at annual GLOW meeting in Bielefeld, 19 June 2012

Long baselines observations with LOFAR
O. Wucknitz
Talk presented in the LOFAR splinter meeting at the AG annual meeting in Hamburg, 25 September 2012

Pulsar scattering in space and time
O. Wucknitz
Talk presented in the 11th EVN Symposium 2012 in Bordeaux, 11 October 2012

Seminar talks and colloquia

Modelling radio lenses with LensCLEAN
O. Wucknitz
Talk given at a seminar at the physics department of Naples University (Italy) on 31. May 2001

Degeneracies in lens models -- No H₀ from gravitational lenses?
O. Wucknitz
Talk given at a seminar at the Jodrell Bank Observatory (UK) on 20. June 2001

A gravitational lensing determination of the Hubble constant using radio data
O. Wucknitz
Talk given for the astrophysics group at the physics department of Potsdam university on 20. September 2001

LensCLEAN results for 0218+357 - Lens position and H₀
O. Wucknitz
Talk given at the Jodrell Bank internal symposium on 10. October 2001

Is JVAS B0218+357 a Golden Lens?
O. Wucknitz
Talk given in the research seminar of the astrophysics group at the physics department of Potsdam university on 8. May 2002

Lens Models for Compact and Extended Sources
O. Wucknitz
Talk of my PhD defence on 14. May 2002

The Cosmic Lens All Sky Survey
O. Wucknitz
Short talk for the internal lens group seminar in the astrophysics department of Potsdam University on 15. November 2002

LensCLEANing JVAS B0218+357 ... and related stuff
O. Wucknitz
Tearoom talk given during a one week 0218+357 gathering at Jodrell Bank Observatory on 15. January 2003

HST/ACS Observations of B0218+357
O. Wucknitz
Short talk for the internal lens group seminar in the astrophysics department of Potsdam University on 27. January 2003

Disentangling microlensing and differential extinction in the double QSO HE0512-3329
O. Wucknitz
Talk given in the Extragalactic Science Club at the AIP on 6. May 2003

Disentangling microlensing and differential extinction in the double QSO HE0512-3329
O. Wucknitz
Talk for the internal lens group seminar in the astrophysics department of Potsdam University on 13. May 2003

Disentangling microlensing and differential extinction in the double QSO HE0512-3329
O. Wucknitz
Talk for the Institute of Theoretical Astrophysics at the University of Oslo on 20. June 2003

Inconsistencies in Special Relativity? Sagnac Effect and Twin Paradox
O. Wucknitz
Talk for the general seminar in the astrophysics department of Potsdam University on 7. July 2003

Deflection of light and particles by moving gravitational lenses
Olaf Wucknitz, Ulrich Sperhake
Talk for the internal lens group seminar in the astrophysics department of Potsdam University on 21. October 2003

Quantitative Interpretation of Quasar Microlensing Light Curves
Olaf Wucknitz
Talk for the internal lens group seminar in the astrophysics department of Potsdam University on 8. June 2004

The Source and Lens of B0218+357 - New Polarization Radio Data to Constrain the Source Structure and H0 with LensCLEAN
O. Wucknitz
Talk for the general seminar in the astrophysics department of Potsdam University on 5. July 2004

LensClean and the Hubble constant from the gravitational lens B0218+357
O. Wucknitz
Talk (Sonderkolloquium) at the Max Planck Institute for Radio Astronomy / University of Bonn, 5. October 2004

LensClean and the Hubble constant from the gravitational lens B0218+357
O. Wucknitz
Talk for the JIVE / ASTRON astro lunch on 1 December 2004

How to remove bandwidth-smeared interfering sources
O. Wucknitz
Talk for the JIVE / ASTRON astro lunch on 22 Mar 2006

Do gravitational lenses always magnify?
O. Wucknitz
Talk for the general ASTRON/JIVE colloquium, 28 June 2007

Is there a magnification paradox in lensing?
O. Wucknitz
Talk for the AIfA cosmology/lensing seminar, 20 November 2007

Is there a magnification paradox in gravitational lensing?
O. Wucknitz
Talk for the general seminar in the astrophysics department of Potsdam University, 26 November 2007

Difference imaging in radio interferometry
O. Wucknitz
Talk presented at the MPIfR/AIfA Lunch Colloquium, 1 October 2008, Bonn

VLBI with LOFAR
O. Wucknitz
Talk presented at the MPIfR/AIfA Lunch Colloquium, 14 April 2010, Bonn

LOFAR - A European VLBI-array for radio astronomy
O. Wucknitz
Colloquium given at the Astrophysikalisches Institut Potsdam (AIP) on 10 September 2010

VLBI long and wide - International LOFAR and efficient wide-field mapping
O. Wucknitz
Seminar talk at the ICRAR, Perth, 22nd October 2010

VLBI with long wavelengths and wide fields
O. Wucknitz
Seminar talk at the ATNF, Sydney, 28th October 2010

Gravitational anomalies in the Solar System
O. Wucknitz
Talk in the intergroup meeting on Fundamental Physics at the MPIfR and AIfA in Bonn on 24 November 2010

LOFAR update: long baselines and other random topics
O. Wucknitz
Talk presented at the MPIfR/AIfA Lunch Colloquium, 6 April 2011, Bonn

Preparing for gravitational lens surveys with LOFAR
O. Wucknitz
Colloquium at the Onsala Space Observatory, 12 May 2011

Gravitational lenses, radio interferometry, and LOFAR
O. Wucknitz
Talk given in the Zurich Theoretical Physics Colloquium, 17 October 2011

Reference frames
O. Wucknitz, R. Porcas
Talk in the intergroup meeting on Fundamental Physics at the MPIfR and AIfA in Bonn on 1 December 2011

Lectures

Entfernungsbestimmung im Kosmos 10
O. Wucknitz
Lecture 10 of "Entfernungsbestimmung im Kosmos", lecture usually given by Joachim Wambsganss. Potsdam, July 2004

LensClean and the optimal use of observational constraints
O. Wucknitz
Lecture given at the ANGLES winter school on lens modelling and the Hubble constant in Santander, Spain 10-14 December 2004

Gravitational lenses
O. Wucknitz
Lecture given for the 2005 summer students at JIVE/ASTRON, Dwingeloo 19 July 2005

Gravitational lenses
O. Wucknitz
Lecture given for the 2006 summer students at JIVE/ASTRON, Dwingeloo 20 June 2006

Phases referencing and faint radio sources
O. Wucknitz
Lecture 12a of the MSc course Radio Astronomy held in Leiden on 6 Dec 2006

Gravitational lenses
O. Wucknitz
Lecture 12b of the MSc course Radio Astronomy held in Leiden on 6 Dec 2006

VLBI
O. Wucknitz
Lecture in the course Practical Radio Interferometry held at the AIfA, University of Bonn on 28 Nov 2007

Cosmology: Gravitational Lensing
O. Wucknitz
Lecture in the course Cosmology held at the AIfA, University of Bonn on 14 Jan 2008

Gravitational Lensing
P. Schneider, O. Wucknitz
Lecture course Gravitational Lensing held at the AIfA, University of Bonn, summer semester 2008.

Observational Cosmology: Gravitational Lensing
O. Wucknitz
Lecture in the course Observational cosmology held at the AIfA, University of Bonn on 18 Jun 2008

Selected applications of general relativity in astrophysics
O. Wucknitz
Lecture course held at the AIfA, University of Bonn, winter semester 2008/09.

VLBI
O. Wucknitz
Lecture in the course Practical Radio Interferometry held at the AIfA, University of Bonn on 19 Nov 2008

Gravitational Lensing
P. Schneider, O. Wucknitz
Lecture course Gravitational Lensing held at the AIfA, University of Bonn, summer semester 2009.

Selected applications of general relativity in astrophysics
O. Wucknitz
Lecture course held at the AIfA, University of Bonn, winter semester 2009/10.

Gravitational Lensing
P. Schneider, O. Wucknitz
Lecture course Gravitational Lensing held at the AIfA, University of Bonn, summer semester 2010.

VLBI techniques and LOFAR
O. Wucknitz
Lecture at the GLOW interferometry school 30 Aug - 3 Sep 2010 in Hamburg

VLBI, fringe-fitting
O. Wucknitz
Lecture at the GLOW interferometry workshop 18 November 2010 in Bonn

VLBI
O. Wucknitz
Lecture in the course Practical Radio Interferometry held at the AIfA, University of Bonn on 1 Dec 2010

Gravitational Lensing
P. Schneider, O. Wucknitz
Lecture course Gravitational Lensing held at the AIfA, University of Bonn, summer semester 2011.

Dealing with long baselines
O. Wucknitz
Lecture at the LOFAR-UK data school, 31 Aug 2011 in Manchester

Selected applications of general relativity in astrophysics
O. Wucknitz
Lecture course held at the AIfA, University of Bonn, winter semester 2011/12.

VLBI
O. Wucknitz
Lecture in the course Practical Radio Interferometry held at the AIfA, University of Bonn on 23 Nov 2011

Long Baselines
O. Wucknitz
Lecture at the GLOW interferometry school, 15 Feb 2012 in Bielefeld

VLBI
O. Wucknitz
Lecture in the course Practical Radio Interferometry held at the AIfA, University of Bonn on 21 Nov 2012

Popular and public talks

Gravitationslinsen - kosmische Fata Morgana als Werkzeug der Astrophysik
Olaf Wucknitz
Public talk given at the MPIfR/AIfA Open Day in Bonn, 5 September 2009

Black holes
Olaf Wucknitz
Talk given at the AIfA Astroclub, Bonn, 26. April 2010

Kosmische Fata Morgana - Gravitationslinsen als Werkzeug der Astrophysik
Olaf Wucknitz
Public talk for the Hoher List Observatory, Daun, 19 May 2010

LOFAR International - Ein hochauflösendes Radiointerferometer
O. Wucknitz
Popular talk at the official opening of the LOFAR station in Tautenburg, 23 June 2010

Kosmische Fata Morgana - Gravitationslinsen als Werkzeug der Astrophysik
Olaf Wucknitz
Public talk at the Volkssternwarte Recklinghausen, 13 October 2010

Kosmische Fata Morgana - Gravitationslinsen als Werkzeug der Astrophysik
Olaf Wucknitz
Public talk at the Sternwarte Solingen, 12 April 2011

Other reports, talks, etc

ANGLES
O. Wucknitz
Popular A4 info sheet about gravitational lenses and ANGLES (2005)

Strong gravitational lensing
O. Wucknitz, M. Garrett, N. Jackson, D. Engels
Contribution for the Science case for an extended LOFAR (2006)

Nutzung der neuen Generation von Radioteleskopen für die Gravitationslinsenforschung
O. Wucknitz
Presentation for the Deutsche Forschungsgemeinschaft to support an application for the Emmy Noether Programme. Talk held at the Airport Conference Centre in Frankfurt/Main, Germany, 17 November 2006

Gravitational lensing
O. Wucknitz
Poster for the JIVE/ASTRON corridors (2006)

(Strong) Gravitational lensing and the EVN 2015
O. Wucknitz
EVN 2015 science case contribution, May 2007

Difference imaging and LOFAR TKSP
O. Wucknitz
Short presentation for a meeting of the LOFAR Transients Key Project, Amsterdam, 30 October 2008

Delay/rate analysis of NL-NL and NL-DE baselines
O. Wucknitz
Presentation for the LOFAR status meeting, Dwingeloo, 30 September 2009

Delay/rate analysis of NL-NL and NL-DE baselines
O. Wucknitz
Presentation for the LOFAR/SKA Focus Group meeting of the MPIfR and AIfA, Bonn, 27 October 2009

LOFAR imaging busy week II
Olaf Wucknitz
Report of the LOFAR imaging busy week II, 28 Sep - 2 Oct 2009, Dwingeloo, Netherlands

Fringes between Effelsberg, Tautenburg, Unterweilenbach and NL
O. Wucknitz
Presentation for the LOFAR status meeting, Dwingeloo, 17 February 2010

First long-baseline maps
O. Wucknitz
Presentation for the LOFAR status meeting, Dwingeloo/Bonn, 21 April 2010

LOFAR: some technical issues
O. Wucknitz
Presentation for the LOFAR/SKA Focus Group meeting of the MPIfR and AIfA, Bonn, 29 April 2010

Strong Gravitational Lensing as a Probe of Gravity, Dark-Matter and Super-Massive Black Holes
L.V.E. Koopmans, M. Auger, M. Barnabe, A. Bolton, M. Bradac, L. Ciotti, A. Congdon, O. Czoske, S. Dye, A. Dutton, A. Eliasdottir, E. Evans, C.D. Fassnacht, N. Jackson, C. Keeton, J. Lazio, P. Marshall, M. Meneghetti, J. McKean, L. Moustakas , S. Myers, C. Nipoti, S. Suyu, G. van de Ven, S. Vegetti, J. Wambsganss, R. Webster, O. Wucknitz, H-S Zhao
White paper submitted to the 2010 Astronomy & Astrophysics Decadal Survey
ADS bibcode 2009arXiv0902.3186K
arXiv:0902.3186

Sub-arcsec LOFAR images
O. Wucknitz
Presentation for the LOFAR status meeting, Dwingeloo/Bonn, 26 January 2011

Long-baseline observations of the Crab
O. Wucknitz
Presentation for the LOFAR status meeting, Dwingeloo/Bonn, 23 February 2011

Crab observations: polarisation and RFI from aircraft
O. Wucknitz
Presentation for the LOFAR status meeting, Dwingeloo/Bonn, 23 March 2011

Air-borne broadband interference detection by LOFAR
Hans van der Marel, Olaf Wucknitz
ASTRON report ASTRON-RP-484, revision 2

Gravitational lenses and digressions into relativity and radio interferometry
Olaf Wucknitz
Presentation at ASTRON, 21 June 2011

Long baseline observations
Olaf Wucknitz
Presentation at the official inauguration of the Jülich LOFAR station, 5 October June 2011

International LOFAR
O. Wucknitz
Poster for the AIfA hallway

LOFAR
O. Wucknitz
Poster für das Emmy-Noether-Jahrestreffen, 13.-15. Juli 2012, Potsdam

Phasing up the superterp - notes on calibration and S/N improvement
O. Wucknitz
Presentation for the LOFAR status meeting, Dwingeloo/Bonn, 22 August 2012

Effelsberg sensitivity problem
O. Wucknitz
Presentation for the LOFAR status meeting, Dwingeloo/Bonn, 12 September 2012

Preprints

Comment on Aberration in gravitational lensing
Olaf Wucknitz
Phys. Rev. D submitted (05 Feb 2010, 25 Mar 2010)

Long term Arecibo monitoring of the water megamaser in MG J0414+0534
P. Castangia, M.C.V. Impellizzeri, J.P. McKean, C. Henkel, A. Brunthaler, A.L. Roy, O. Wucknitz
Proceedings of the IAU Symposium 287, 2012, "Cosmic masers: from OH to H0" submitted (2012)
ADS bibcode 2012arXiv1204.2941C
arXiv:1204.2941