prof. dr. L.V.E. (Léon) Koopmans

Professor

Research

Research units:

Postal address:
Landleven
12
Gebouw 5419, ruimte 0160
Groningen
Netherlands
Phone: +31 50 363 6519Fax: +31 50 363 6100
  1. 2002
  2. Koopmans, L. V. E., & Blandford, R. D. (2002). White Dwarfs: Contributors and Tracers of the Galactic Dark-Matter Halo. In P. Natarajan (Ed.), The Shapes of Galaxies and their Dark Halos (pp. 150-153). World Scientific Publishing. https://doi.org/10.1142/9789812778017_0024
  3. Argo, M. K., Jackson, N. J., Browne, I. W. A., York, T., McKean, J. P., Biggs, A. D., ... Wilkinson, P. (2002). CLASS B0445+123: a new two-image gravitational lens system. Physical Review Letters, 89(15). https://doi.org/10.1103/PhysRevLett.89.151301
  4. Blandford, R., Agol, E., Broderick, A., Heyl, J., Koopmans, L., & Lee, H-W. (2002). Compact objects and accretion disks. Proceedings of the Canary Islands Winter School of Astrophysics, 177-223.
  5. 2001
  6. Augusto, P., Browne, I. W. A., Wilkinson, P. N., Jackson, N. J., Fassnacht, C. D., Muxlow, T. W. B., ... Taylor, G. B. (2001). B2114+022: A distant radio source gravitationally lensed by a starburst galaxy. Monthly Notices of the Royal Astronomical Society, 326(3), 1007-1014. https://doi.org/10.1046/j.1365-8711.2001.04764.x
  7. Rusin, D., Marlow, DR., Norbury, M., Browne, IWA., Jackson, N., Wilkinson, PN., ... de Bruyn, AG. (2001). The new two-image gravitational lens system class B2319+051. The Astronomical Journal, 122(2), 591-597.
  8. Koopmans, L. V. E., Blandford, R. D., de Bruyn, A. G., Fassnacht, C. D., & Wambsganss, J. (2001). Microlensing and Stellar Remnants. Bulletin of the American Astronomical Society, 198, 37.02.
  9. Marlow, DR., Rusin, D., Norbury, M., Jackson, N., Browne, IWA., Wilkinson, PN., ... de Bruyn, AG. (2001). Class B0739+366: A new two-image gravitational lens system. The Astronomical Journal, 121(2), 619-624.
  10. Biggs, A. D., Browne, I. W. A., Wilkinson, P. N., Muxlow, T. W. B., Helbig, P., & Koopmans, L. V. E. (2001). B0218+357: Time Delays and New MERLIN/VLA 5 GHz Maps of the Einstein Ring. In T. G. Brainerd, & C. S. Kochanek (Eds.), Gravitational Lensing: Recent Progress and Future Go (Vol. 237, pp. 137). Astronomical Society of the Pacific.
  11. Xanthopoulos, E., Browne, I. W. A., Wilkinson, P. N., Jackson, N. J., Karidis, A., Porcas, R. W., ... Marlow, D. R. (2001). Everything You Ever Wanted to Know about the JVAS Gravitational Lens System B1030+074 but were Afraid to Ask. In T. G. Brainerd, & C. S. Kochanek (Eds.), Gravitational Lensing: Recent Progress and Future Go (Vol. 237, pp. 109). Astronomical Society of the Pacific.
  12. Fassnacht, C. D., Xanthopoulos, E., Koopmans, L. V. E., Pearson, T. J., Readhead, A. C. S., & Myers, S. T. (2001). Measuring H$_0$ with CLASS B1608+656: The Second Season of VLA Monitoring. In T. G. Brainerd, & C. S. Kochanek (Eds.), Gravitational Lensing: Recent Progress and Future Go (Vol. 237, pp. 121). Astronomical Society of the Pacific.
  13. Koopmans, L. V. E. (2001). Radio-Microlensing in B1600+434: Probing MACHOs at High-Redshifts. In J. Tran Thanh Van, Y. Mellier, & M. Moniez (Eds.), Cosmological Physics with Gravitational Lensing (pp. 99). (Moriond astrophysics meetings). EDP Sciences.
  14. Koopmans, LE., de Bruyn, AG., Wambsganss, J., & Fassnacht, CD. (2001). A radio-microlensing caustic crossing in B1600+434? In JW. Menzies, & PD. Sackett (Eds.), MICROLENSING 2000: A NEW ERA OF MICROLENSING ASTROPHYSICS (pp. 363-371). (ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES; Vol. 239). SAN FRANCISCO: ASTRONOMICAL SOC PACIFIC.
  15. Koopmans, LVE., & de Bruyn, AG. (2001). Microlensing & scintillation of gravitationally lensed compact radio sources: Evidence for MACHOs? In TG. Brainerd, & CS. Kochanek (Eds.), GRAVITATIONAL LENSING: RECENT PROGRESS AND FUTURE GOALS (pp. 193-196). (ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES; Vol. 237). SAN FRANCISCO: ASTRONOMICAL SOC PACIFIC.
  16. 2000
  17. Phillips, PM., Norbury, MA., Koopmans, LVE., Browne, IWA., Jackson, NJ., Wilkinson, PN., ... Xanthopoulos, E. (2000). A new quadruple gravitational lens system: CLASS B0128+437. Monthly Notices of the Royal Astronomical Society, 319(2), L7-L11. https://doi.org/10.1046/j.1365-8711.2000.04033.x
  18. Koopmans, LVE., de Bruyn, AG., Fassnacht, CD., Marlow, DR., Rusin, D., Blandford, RD., ... Hoekstra, H. (2000). CLASS B0827+525: 'Dark lens' or binary radio-loud quasar? Astronomy & astrophysics, 361(3), 815-822.
  19. Marlow, DR., Rusin, D., Jackson, N., Wilkinson, PN., Browne, IWA., & Koopmans, L. (2000). Redshifts of class radio sources. The Astronomical Journal, 119(6), 2629-2633.
  20. Helbig, P., Blandford, R. D., Browne, I. W. A., de Bruyn, A. G., Fassnacht, C. D., Jackson, N., ... Xanthopoulos, E. (2000). Measuring cosmological parameters with the JVAS and CLASS gravitational lens surveys. Nuclear Physics B, 80, 13/04.
  21. Koopmans, L. V. E., & de Bruyn, A. G. (2000). Micro amp: Strong Lensing with the Square Kilometer Array: the Mass- Function of Compact Objects in High-Redshift Galaxies. In M. P. van Haarlem (Ed.), Perspectives on Radio Astronomy: Science with Large Antenna Arrays (pp. 213). Netherlands Institute for Radio Astronomy (ASTRON).
  22. 1999
  23. Fassnacht, CD., Pearson, TJ., Readhead, ACS., Browne, IWA., Koopmans, LVE., Myers, ST., & Wilkinson, PN. (1999). A determination of H-0 with the class gravitational lens B1608+656. I. Time delay measurements with the VLA. Astrophysical Journal, 527(2), 498-512.
  24. Marlow, DR., Myers, ST., Rusin, D., Jackson, N., Browne, IWA., Wilkinson, PN., ... de Bruyn, AG. (1999). Class B1555+375: A new four-image gravitational lens system. The Astronomical Journal, 118(2), 654-658.
  25. Myers, ST., Rusin, D., Fassnacht, CD., Blandford, RD., Pearson, TJ., Readhead, ACS., ... de Bruyn, AG. (1999). CLASS B1152+199 and B1359+154: Two new gravitational lens systems discovered in the Cosmic Lens All-Sky Survey. The Astronomical Journal, 117(6), 2565-2572.
  26. Koopmans, LVE., de Bruyn, AG., Marlow, DR., Jackson, N., Blandford, RD., Browne, IWA., ... Womble, D. (1999). A new radio double lens from CLASS: B1127+385. Monthly Notices of the Royal Astronomical Society, 303(4), 727-735.
  27. Fassnacht, CD., Blandford, RD., Cohen, JG., Matthews, K., Pearson, TJ., Readhead, ACS., ... Schilizzi, RT. (1999). B2045+265: A new four-image gravitational lens from CLASS. The Astronomical Journal, 117(2), 658-670.
  28. Biggs, A. D., Browne, I. W. A., Wilkinson, P. N., Muxlow, T. W. B., Helbig, P., & Koopmans, L. V. E. (1999). B0218+357: Time Delays and New MERLIN/VLA 5GHz Maps of the Einstein Ring. Monthly Notices of the Royal Astronomical Society, 304(2).
  29. Xanthopoulos, E., Browne, IWA., King, LJ., Jackson, NJ., Marlow, DR., Wilkinson, PN., ... Porcas, RW. (1999). The gravitational lens system B1030+074. Discovery and follow-up. In Y. Terzian, D. Weedman, & E. Khachikian (Eds.), ACTIVE GALACTIC NUCLEI AND RELATED PHENOMENA (pp. 373-378). (IAU SYMPOSIA). SAN FRANCISCO: ASTRONOMICAL SOC PACIFIC.
  30. 1998
  31. Xanthopoulos, E., Browne, IWA., King, LJ., Koopmans, LVE., Jackson, NJ., Marlow, DR., ... Wilkinson, PN. (1998). The new gravitational lens system B1030+074. Monthly Notices of the Royal Astronomical Society, 300(3), 649-655.
  32. Jackson, N., Helbig, P., Browne, I. W. A., & Koopmans, L. (1998). Light on dark lenses. New Astronomy Reviews, 42(2), 97-100. https://doi.org/10.1016/S1387-6473(98)00028-1
  33. Jackson, N., Helbig, P., Browne, N. V., Fassnacht, CD., Koopmans, L., Marlow, D., & Wilkinson, PN. (1998). Lensing galaxies: light or dark? Astronomy & astrophysics, 334(2), L33-L36.
  34. Jackson, N., Helbig, P., Browne, I., Fassnacht, C. D., Koopmans, L., Marlow, D., & Wilkinson, P. N. (1998). Lensing galaxies: light or dark? Astronomy and astrophysics, 334.
  35. Jackson, N., Nair, S., Browne, IWA., Wilkinson, PN., Muxlow, TWB., de Bruyn, AG., ... Pearson, TJ. (1998). B0712+472: a new radio four-image gravitational lens. Monthly Notices of the Royal Astronomical Society, 296(3), 483-490.
  36. King, LJ., Jackson, N., Blandford, RD., Browne, IWA., de Bruyn, AG., Fassnacht, C., ... Wilkinson, PN. (1998). A complete infrared Einstein ring in the gravitational lens system B1938+666. Monthly Notices of the Royal Astronomical Society, 295(2), L41-L44.
  37. Koopmans, L., & de Bruyn, G. (1998). Gravitatielenzen als kosmologisch gereedschap. Zenit, 25(5), 231-236.
  38. Jackson, N., Helbig, P., Browne, I. W. A., Fassnacht, C. D., Koopmans, L. V. E., Marlow, D. R., & Wilkinson, P. N. (1998). Lensing galaxies: light or dark? Monthly Notices of the Royal Astronomical Society, 295(2).
  39. Koopmans, LVE., de Bruyn, AG., & Jackson, N. (1998). The edge-on spiral gravitational lens B1600+434. In Muller, S. Gottlober, JP. Mucket, & J. Wambsganss (Eds.), LARGE SCALE STRUCTURE: TRACKS AND TRACES (pp. 325-326). SINGAPORE: World Scientific Publishing.
  40. Xanthopoulos, E., Browne, I. W. A., King, L. J., Koopmans, L. V. E., Jackson, N. J., Marlow, D. R., ... Wilkinson, P. N. (1998). The new gravitational lens system B1030+074. Monthly Notices of the Royal Astronomical Society, 300(3).
  41. 1997
  42. Biggs, A., Browne, I. W. A., Helbig, P., Jackson, N. J., King, L., Marlow, D. R., ... Patnaik, A. (1997). Cosmological Parameters from the CERES Project. Proceedings of the Symposium of the International Astronomical Union , 183, 64.
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