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EURO50: A EUROPEAN 50MADAPTIVE OPTICS EXTREMELY LARGE TELESCOPE

  • Arne Ardeberg
  • Torben Andersen
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  • 280 Downloads

Abstract

Science drivers, technical challenges and solutions are discussed for a 50 m Adaptive-Optics (AO) Extremely Large Telescope (ELT). Among programmes requiring ELT data, special attention is given to the evolution from proto-star shells, via proto-planetary discs to planet formation. Earth-like planets and life signatures are discussed. Kuiper-Belt objects (KBOs) are taken up. Star formation and spatially and temporally resolved stellar observations are discussed. Use and advantage of stellar clusters as probes of galactic evolution is discussed, also for distant galaxies. First-generation supernovae are taken up as tracers of the first stellar generations but also as back-ground objects for mapping of the inter-galactic medium. A proposed European ELT, the Euro50, is described. The Gregory-type optical system, with elliptical primary, f/0.85, and secondary mirrors is discussed as are focus arrangements. The compact, light-weight mechanical structure is discussed together with mirror alignment. Wind-tunnel and computational fluid dynamics tests of an enclosure concept are described. Special attention is given to the adaptive and live optics concepts. Multi-conjugate AO and control of the deformable secondary mirror are discussed together with laser guide stars. The over-all control system is described. Integrated modelling is discussed with emphasis on the importance on wind-load control, an item of crucial importance for an ELT with diffraction-limited operation.

Keywords

Planetary System Adaptive Optic Initial Mass Function Primary Mirror Large Telescope 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Andersen, T., Ardeberg, A., Beckers, J., Flicker, R., Jessen, N.-C., Gontcharov, A., Mannery, E., Owner-Petersen, M., 1999: The Proposed Swedish 50 m Extremely Large Telescope, in Bäckaskog Workshop on Extremely Large Telescopes, ESO Conference and Workshop Proceedings No. 57, pp. 72–82.Google Scholar
  2. Andersen, T., Ardeberg, A., Beckers, J., Gontcharov, A., Owner-Petersen, M., Riewaldt, H., 2004a: Euro50, in 2nd Bäckaskog Workshop on Extremely Large Telescopes, Proc. SPIE vol. 5382, pp. 169–182.ADSGoogle Scholar
  3. Andersen, T., Ardeberg, A., Beckers, J., Gontcharov, A., Owner-Petersen, M., Riewaldt, H., Snel, R., Walker, D., 2002: The Euro50 Extremely Large Telescope, in Future Giant Telescopes, Proc. SPIE vol. 4840, pp. 214–225.ADSGoogle Scholar
  4. Andersen, T., Ardeberg, A., Owner-Petersen, M., 2003: Euro50 Ű A 50 m Adaptive Optics Telescope, Lund Observatory, ISBN 91-631-4317-8.Google Scholar
  5. Andersen, T., Ardeberg, A., Riewaldt, H., Lastiwka, M., Quinlan, N., McNamara, K., Wang, X., Enmark, A., Owner-Petersen, M., Shearer, A., Fan, C., Moraru, D., 2004b: Status of the Euro50 Project, in Ground-based Telescopes, Proc. SPIE vol. 5489, pp. 407–416.ADSGoogle Scholar
  6. Andersen, T. and Christensen, P. H., “Is there an Upper Limit to the Size of Enclosures?”, Proc. SPIE, Vol. 4004, 2000.Google Scholar
  7. Andersen, T., Enmark, A., Moraru, D., Owner-Petersen, M., Riewaldt, H., Browne, M., Fan, C., and Shearer, A., “A Parallel Integrated Model of the Euro50”, Proc. SPIE, Vol. 5497, 2004.Google Scholar
  8. André, P., Montmerle, T., 1994, Astrophys. J. 420, 837.ADSGoogle Scholar
  9. Ardeberg, A., 2004a, Science Drivers of a 50 m AO Telescope, 2nd Bäckaskog Workshop on Extremely Large Telescopes, Proc. SPIE vol. 5382, pp. 37–46.ADSGoogle Scholar
  10. Ardeberg, A., 2004b, Diffraction-Limited Light Collection: Promises and Challenges of a 50 m ELT, Ground-based Telescopes, Proc. SPIE vol. 5489, pp. 23–34.ADSGoogle Scholar
  11. Ardeberg, A., Andersen, T., 2004: 2nd Bäckaskog Workshop on Extremely Large Telescopes, Proc. SPIE vol. 5382.Google Scholar
  12. Ardeberg, A., Andersen, T., Lindberg, B., Owner-Petersen, M., Korhonen, T., Søndergård, P., 1992: Breaking the 8 m Barrier, One Approach for a 25 m Class Optical Telescope, ESO Conference on Progress in Telescopes and Instrumentation Technologies, ESO Conference and Workshop Proceedings No. 42, pp. 75–78.Google Scholar
  13. Ardeberg, A., Andersen, T., Owner-Petersen, M., Jessen, N.-C., 1996: A 25 m Live Optics Telescope, in Telescopes of Today and Tomorrow, Proc. SPIE vol. 2871, pp. 585–596.ADSGoogle Scholar
  14. Ardeberg, A., Linde, P., 2004a, Clusters as Probes of Distance, Evolution and Chemistry of Galaxies, 2nd Bäckaskog Workshop on Extremely Large Telescopes, Proc. SPIE vol. 5382, pp. 47–56.ADSGoogle Scholar
  15. Ardeberg, A., Linde, P., 2004b, Evolution of Distant Galaxies from Cluster Photometry, Ground-based Telescopes, Proc. SPIE vol. 5489, pp. 72–83.ADSGoogle Scholar
  16. Ardeberg, A., Linde, P., 2004c, Evolution of Galaxies from ELT Photometry of Stellar Clusters, these proceedings.Google Scholar
  17. Augereau, J. C., Papaloizou,, J. C. B., 2004, Astron. Astrophys. 414, 1153.Barlow, M. J., Crawford, I. A., Diego, F., Dryburgh, M., Fish, A. C., Howarth, I. D., Spyromilio, J., Walker, D. D., 1995, Mon. Not. Roy. Astron. Soc. 272, 333.CrossRefADSGoogle Scholar
  18. Bary, J. S. Weintraub, D. A., Kastner, J. H., 2002, Astrophys. J. 576, L 73.CrossRefADSGoogle Scholar
  19. Bary, J. S. Weintraub, D. A., Kastner, J. H., 2003, Astrophys. J. 586, 1136.CrossRefADSGoogle Scholar
  20. Basri, G., 2004, Nature 430, 24.CrossRefADSGoogle Scholar
  21. Bate, M. R., Lubow, S. H., Ogilvie, G. I., Miller, K. A., 2003, Mon. Notes Roy. Astron. Soc. 341,213.ADSGoogle Scholar
  22. Beasley, M. A., Kawata, D., Pearce, F. R., Forbes, D. A., Gibson, B. K., 2003, Astrophys. J. 596, L 187.CrossRefADSGoogle Scholar
  23. Beckers, J., Owner-Petersen, M., and Andersen, T., “Sodium Beacon Wavefront Sensing for the Euro50 in the Presence of Perspective Elongation”, Proc. SPIE, Vol. 5382, 2003a.Google Scholar
  24. Beckers, J., Owner-Petersen, M., and Andersen, T., “Correction of perspective elongation of sodium beacons in the 50-meter Euro50 telescope”, Proc. SPIE, Vol. 5169, 2003b.Google Scholar
  25. van Belle, G. T., Ciardi, D. R., Thompson, R. R., Akeson, R. L., Lada, E. A., 2001, Astrophys. J. 559, 1155.ADSGoogle Scholar
  26. van den Bergh, S., 2000, The galaxies of the Local Group, Cambridge Univ. Press, Cambridge UK, New York.Google Scholar
  27. Bolton, A. S., Burles, S., 2003, Astrophys. J. 592, 17.CrossRefADSGoogle Scholar
  28. Bonnell, I., Bate, M., Zinnecker, H., 1998, Mon. Not. Roy. Astron. Soc. 298, 93.CrossRefADSGoogle Scholar
  29. Boss, A. P., 2000, Astrophys. J. 536, L 101.CrossRefADSGoogle Scholar
  30. Boss, A. P., 2001, Astrophys. J. 563, 367.CrossRefADSGoogle Scholar
  31. Boss, A. P., 2002, Astrophys. J. 567, L 153.ADSGoogle Scholar
  32. Boss, A. P., Wetherhill, G. W., Haghighipour, N., 2002, Icarus 156, 291.CrossRefADSGoogle Scholar
  33. Bouchy, F., Pont, F., Santos, N. C., Melo, C, Mayor, M., Queloz, D., Udry, S., 2004, Astron. Astrophys. 421, L 13.CrossRefADSGoogle Scholar
  34. Bromm, V., Yoshida, N., Hernquist, L., 2003, Astrophys. J. 596, L 135.CrossRefADSGoogle Scholar
  35. Brown, T. M., Charbonneau, D., Gilliland, R. L., Noyes, R. W., Burrows, A., 2001, Astrophys. J. 552, 699.CrossRefADSGoogle Scholar
  36. Brown, T. M., Fergusson, H. C:, Smith, E., Kimble, R. A., Sweigart, A. V., Renzini, A., Rich, R. M., VandenBerg, D. A., 2003, Astrophys. J. 592, L 17.ADSGoogle Scholar
  37. Burrows, A., Ram, R. S., Bernath, P., Sharp, C. M., Milsom, J. A., 2002, Astrophys. J. 577, 986.CrossRefADSGoogle Scholar
  38. Burrows, A., Sudarsky, D., Hubbard, W B., 2003, Astrophys. J. 594, 545.CrossRefADSGoogle Scholar
  39. Chabrier, G., 2003a, Astrophys. J. 586, L 133.CrossRefADSGoogle Scholar
  40. Chabrier, G., 2003b, Publ. Astron. Soc. Pacific 115, 763.CrossRefADSGoogle Scholar
  41. Charbonneau, D., 2003, Nature 422, 124.CrossRefADSGoogle Scholar
  42. Chini, R., Hoffmeister, V., Kimeswenger, S., Nielbock, M., Nürnberger, D., Schmidtobreick, L., Sterzik, M., 2004, Nature 429, 155.CrossRefADSGoogle Scholar
  43. Cimatti, A., Daddi E., Renzini, A., Cassata, P., Vanzella, E., Pozzetti, L., Cristiani, S., Fontana, A., Rodighiero, G., Mignoli, M., Zamorani, G., 2004, Natue 430, 184.ADSGoogle Scholar
  44. Dahlén, T., Fransson, C., 1999, Astron. Astrophys. 350, 349.ADSGoogle Scholar
  45. Della Valle, M., Panagia, N., 2003, Astrophys. J. 587, L 71.CrossRefADSGoogle Scholar
  46. Domiciano de Souza, A., Kervella, P, Jankov, S, Abe, L, Vakili, F, di Folco, E, Paresce, F, 2003, Astron. Astrophys. 407, L47.CrossRefADSGoogle Scholar
  47. Durrell, P. R., Harris, W. E., Pritchet, C. J., 2001, Astron. J. 121, 2557.CrossRefADSGoogle Scholar
  48. Duvert, G., Guilloteau, S., Ménard, F., Simon, M., Dutrey, A., 2000, Astron. Astrophys. 355, 165.ADSGoogle Scholar
  49. Elston, R. J., Lada, E. A., Alves, J., Ferreira, B., Lada, C. J., Levine, J., Muench, A. A., Raines, S.N., Rashkind, N., Roman, C., 2003, Nearly Edge on Silhouette Disks From the FLAMINGOS Molecular Cloud Survey, AAS, May 2003, 28.09.Google Scholar
  50. ESA, 2003: http://www.esa.int/esaSC/120382_index_0_m.htmlGoogle Scholar
  51. Ferguson, A. M. N., Irwin, M. J., Ibata, R. A., Lewis, G. F., Tanvir, N. R., 2002, Astron. J. 124, 1452.CrossRefADSGoogle Scholar
  52. Frayn, C., 2003, PhD Thesis, University of Cambridge.Google Scholar
  53. Gilliland, R., Dupree, A., 1996, AAS 187.Google Scholar
  54. Gilmore, G., 2004, OPTICON, a (small) part of European Astronomy, 2nd Bäckaskog Workshop on Extremely Large Telescopes, Proc. SPIE vol. 5382, pp. 138–141.ADSGoogle Scholar
  55. Glazebrook, K., Abraham, R. G., McCarthy, P. J., Savaglio S., Chen, H.-W., Crampton, D., Murowinski, R., Jørgensen, I., Roth, K, Hook, I., Marzke, R. O., Carlberg, R G., 2004, Nature 430, 181.CrossRefADSGoogle Scholar
  56. Goldhaber, G., Groom, D. E., Kim, A., Aldering, G., Astier, P., Conley, A., Deustua, S. E., Ellis, R., Fabbro, S., Fruchter, A. S., Goobar, A., Hook, I., Irwin, M., Kim, M., Knop, R. A., Lidman, C., McMahon, R., Nugent, P. E., Pain, R., Panagia, N., Pennypacker, C. R., Perlmutter, S., Ruiz-Lapuente, P., Schaefer, B., Walton, N. A., York, T., 2001, Astrophys. J. 558, 359.CrossRefADSGoogle Scholar
  57. Goncharov, A.. Extremely Large Telescopes: Optical Design and Wavefront Correction. 2003. Lund Observatory.Google Scholar
  58. Grady, C A., Sitko, M. L., Russell, R. W., Lynch, D. K., Hanner, M. S., Pérez, M. R., Bjorkman, K. S., de Winter, D., 2000, in Protostars and Planets IV, Mannings, W., Boss, A. P., Russell, S. S. (eds.), The University of Arizona Press, Tucson, p. 613.Google Scholar
  59. Guenther, E. W., Wuchterl, G., 2003, Astron. Astrophys. 401, 677.CrossRefADSGoogle Scholar
  60. Haghighipour, N., Boss, A. P., 2003a, Astrophys. J. 583, 996.CrossRefADSGoogle Scholar
  61. Haghighipour, N., Boss, A. P., 2003b, Astrophys. J. 586, 1442.CrossRefADSGoogle Scholar
  62. Hollenbach, D. J., Yorke, H.W., Johnstone, D., 2000, Disk Dispersal Around Young Stars, in Protostars and Planets IV, Mannings, W., Boss, A. P., Russell, S. S. (eds.), The University of Arizona Press, Tucson, p. 401.Google Scholar
  63. Kalas, P., Liu, M. C., Matthews, B., 2004, Science 303, 1990.CrossRefADSGoogle Scholar
  64. Karovska, M., Hack, W., Raymond, J., Guinan, E., 1997, Astrophys. J. 482, L 175.CrossRefADSGoogle Scholar
  65. Kawabata, K. S., Deng, J., Wang, L., Mazzali, P., Nomoto, K., Maeda, K., Tominaga, N., Umeda, H., Iye, M., Kosugi, G., Ohyama, Y., Sasaki, T., Höflich, P., Wheeler, J.C., Jeffery, D. J., Aoki, K., Kashikawa, N., Takata, T., Kawai, N., Sakamoto, T., Urata, Y., Yoshida, A., Tamagawa, T., Torii, K., Aoki, W., Kobayashi, N., Komiyama, Y., Mizumoto, Y., Noumaru, J., Ogasawara, R., Sekiguchi, K., Shirasaki, Y., Totani, T., Watanabe, J., Yamada, T., 2003, Astrophys. J. 593, L 19.CrossRefADSGoogle Scholar
  66. Knop, R. A., Aldering, G., Amanullah, R., Astier, P., Blanc, G., Burns, M. S., Conley, A., Deustua, S. E., Doi, M., Ellis, R., Fabbro, S., Folatelli, G., Fruchter, A. S., Garavini, G., Garmond, S., Garton, K., Gibbons, R., Goldhaber, G., Goobar, A., Groom, D. E., Hardin, D., Hook, I., Howell, D. A., Kim, A. G., Lee, B. C., Lidman, C., Mendez, J., Nobili, S., Nugent, P. E., Pain, R., Panagia, N., Pennypacker, C. R., Perlmutter, S., Quimby, R., Raux, J., Regnault, N., Ruiz-Lapuente, P., Sainton, G., Schaefer, B., Schahmaneche, K., Smith, E., Wood-Vasey, A. L., Yasuda, N., 2003, Astrophys. J. 598, 102.CrossRefADSGoogle Scholar
  67. Konacki, M., Torres, G., Jha, S., Sasselov, D. D., 2003a, Nature 421, 507.CrossRefADSGoogle Scholar
  68. Konacki, M., Torres, G., Sasselov, D. D., Jha, S., 2003b, Astrophys. J. 597, 1076.CrossRefADSGoogle Scholar
  69. Lada, E. A., 2003, Evolution of Circumstellar Disks in Young Stellar Clusters, AAS, May 2003, 24.06.Google Scholar
  70. Linde, P., Ardeberg, A., 2004, in manuscript.Google Scholar
  71. Lissauer, J. J., 1993, Planet Formation, in Ann. Rev. Astron. Astrophys. Vol. 31, Burbidge; G., Layzer, D., Sandage, A. (eds,), Annual Rev. Inc., Palo Alto.Google Scholar
  72. Livio, M., Riess, A. G., 2003, Astrophys. J. 594, L 93.CrossRefADSGoogle Scholar
  73. Madgwick, D. S., Hewett, P. C., Mortlock, D. J., Wang, L., 2003, Astrophys. J. 599, L 33.CrossRefADSGoogle Scholar
  74. Marcy, G. W., Butler, R. P., Vogt, S. S., 2000, Astrophys. J. 536, L 43.CrossRefADSGoogle Scholar
  75. Marcy, G.; Butler, R. P., Fischer, D. A., Vogt, S. S., 2004: Exoplanets: New Parameter Space, in Astrometry Conference 2004, Astrometry in the Age of the Next Generation of Large Telescopes, 18–20 October, 2004, Lowell Observatory, in print. Mouillet, D., 2004, Science 303, 1982.Google Scholar
  76. Mouillet, D., Augereau, J. C., Chauvin, G., Lagrange, A.-M., Ménard, F., 2003, Protoplanetary Disks and High Dynamic Observations, in Astronomy with High Contrast Imaging: From Planetary Systems to Active Galactic Nuclei, Aime, C., Soummer, R. (eds.), EAS Publ. Ser. Vol. 8, EDP Sciences, Les Ulis, France, p. 37.Google Scholar
  77. Mouillet, D., Lagrange, A. M., Augereau, J. C, Ménard, F., 2001, Astron. Astrophys. 372, L 61.ADSGoogle Scholar
  78. Natta, A., Grinin, V. P., Mannings, V., 2000, Properties and Evolution of Disks around Pre-Main-Sequence Stars of Intermediate Mass, in Protostars and Planets IV, Mannings, W., Boss, A. P., Russell, S. S. (eds.), The University of Arizona Press, Tucson, p. 559.Google Scholar
  79. Nelson, R. P., Papaloizou, J. C. B., 2003, Mon. Not. Roy. Astron. Soc. 339, 993.CrossRefADSGoogle Scholar
  80. Nelson, R. P., Papaloizou, J. C. B., 2004, Mon. Not. Roy. Astron. Soc. 350, 849.CrossRefADSGoogle Scholar
  81. Nozawa, T., Kozasa, T., 2003, Astrophys. J. 598, 785.CrossRefADSGoogle Scholar
  82. Nugent, P., Kim, A., Perlmutter, S., 2002, Publ. Astron. Soc. Pacific 114, 803.CrossRefADSGoogle Scholar
  83. Nürnberger, D. E. A., 2003, Astron. Astrophys. 404, 255.CrossRefADSGoogle Scholar
  84. Nürnberger, D. E. A., Bronfman, L., Yorke, H. W., Zinnecker, H., 2002, Astron. Astrophys. 394, 253.CrossRefADSGoogle Scholar
  85. Nürnberger, D. E. A., Petr-Gotzens, M. G., 2002, Astron. Astrophys. 382, 537.CrossRefADSGoogle Scholar
  86. Nürnberger, D. E. A., Stanke, Th., 2003, Astron. Astrophys. 400, 223.CrossRefADSGoogle Scholar
  87. OGLE, 2004a, http://sirius.astrouw.edu.pl/ ogle/Google Scholar
  88. OGLE, 2004b, http://bulge.princeton.edu/ ogle/Google Scholar
  89. Oschmann, Jr., J. M., 2004: Ground-based Telescopes, Proc. SPIE vol. 5489.Google Scholar
  90. Osterloh, M., Beckwith, S. V. W., 1995, Astrophys. J. 439, 288.CrossRefADSGoogle Scholar
  91. Owner-Petersen, M. and Goncharov, A., “Some Consequences of Atmospheric Dispersion for ELTs”, Proc. SPIE, Vol. 5489, 2004.Google Scholar
  92. Owner-Petersen, M., Andersen, T., Goncharov, A., and Beckers, J., “Control Strategy for the Adaptive Optics of the Euro50”, Proc. SPIE, Vol. 4840, 2003, pp. 427–435.ADSGoogle Scholar
  93. Papaloizou, J. C. B., Nelson, R. P., 2003, Mon. Not. Roy. Astron. Soc. 339, 983.CrossRefADSGoogle Scholar
  94. Papaloizou, J. C. B., Nelson, R. P., Snellgrove, M. D., 2004, Mon. Not. Roy. Astron. Soc. 350, 829.CrossRefADSGoogle Scholar
  95. Perlmutter, S., Aldering, G., Goldhaber, G., Knop. R. A., Nugent, P., Castro, P. G., Deustua, S., Fabbro, S., Goobar, A., Groom, D. E., Hook, I. M., Kim, A. G., Kim, M. Y., Lee, J. C., Nunes, N. J., Pain, R., Pennypacker, C. R., Quimby, R., Lidman, C, Ellis, R. S., Irwin, M., McMahon, R. G., Ruiz-Lapuente, P., Walton, N., Schaefer, B., Boyle, B. J., Filippenko, A. V., Matheson, T., Fruchter, A. S., Panagia, N., Newberg, H. J. M., Couch, W. J., 1999, Astrophys. J. 517, 565.CrossRefADSGoogle Scholar
  96. Pichon, C., Scannapieco, E., Aracil, B., Petitjean, P., Aubert, D., Bergeron, J., Colombi, S., 2003, Astrophys. J. 597, L 97.CrossRefADSGoogle Scholar
  97. Pickett, B. K., Mejía, A. C., Durisen, R. H., Cassen, P. M., Berry, D. K., Link, R. P., 2003, Astrophys. J. 590, 1060.CrossRefADSGoogle Scholar
  98. Pollack, J. B., Hubickyj, O., Bodenheimer, P., Lissauer, J. J., Podolak, M., Greenzweig, Y., 1996, Icarus 124, 62.CrossRefADSGoogle Scholar
  99. Rafikov, R. R., 2003a, Astron. J. 125, 906.ADSGoogle Scholar
  100. Rafikov, R. R., 2003b, Astron. J. 125, 942.ADSGoogle Scholar
  101. Rebolo, R., Zinnecker, H., 2004, ELT: Stars and Planets Summary, Opticon-ELT Science Case Meeting, Florence, November 2004.Google Scholar
  102. Reiners, A., Schmitt, J. H. M. M., 2003, Astron. Astrophys. 398, 647.CrossRefADSGoogle Scholar
  103. Rice, W. K. M., Wood, K., Armitage, P. J., Whitney, B. A., Bjorkman, J. E., 2003, Mon. Not. Roy. Astron. Soc. 342, 79.CrossRefADSGoogle Scholar
  104. Riess, A. G., Filippenko, A. V., Li, W., Schmidt, B. P., 1999a, Astron. J. 118, 2668.ADSGoogle Scholar
  105. Riess, A. G., Filippenko, A. V., Li, W., Treffers, R. R., Schmidt, B. P., Qiu, Y., Hu, J., Armstrong, M., Faranda, C., Thouvenot, E., Buil, C., 1999b, Astron. J. 118, 2675.ADSGoogle Scholar
  106. Riewaldt, H., Lastiwka, K., Quinlan, N., McNamara, K., Wang, X., Andersen, T., and Shearer, A., “Wind on the Euro50 Enclosure”, Proc. SPIE, Vol. 5495, 2004.Google Scholar
  107. Schneider J., 2004 http://www.obspm.fr/encycl/catalog.htmlGoogle Scholar
  108. Shigeyama, T., Tsujimoto, T., 2003, Star Formation History in Galaxies Inferred from Stellar Elemental Abundance Patterns, in Proc. IAU 8th Asian-Pacific Regional Meeting, vol. I, Ikeutchi, S., Hearnshaw, J., Hanawa, T., ASP Conf. Proc. vol. 289, pp. 263–266.Google Scholar
  109. Smith, B. A., Terrile, R. J., 1984, Science 226, 1421.ADSGoogle Scholar
  110. Snel, R., Ardeberg, A., Flicker, R., 2004, Some aspects of science with a 50 m AO telescope, in : 2nd Bäckaskog Workshop on Extremely Large Telescopes, Proc. SPIE vol. 5382, pp. 57–66.ADSGoogle Scholar
  111. Stanek, K. Z., Matheson, T., Garnavich, P. M., Martini, P., Berlind, P., Caldwell, N., Challis, P., Brown, W. R., Schild, R., Krisciunas, K., Calkins, M. L., Lee, J. C., Hathi, N., Jansen, R. A., Windhorst, R., Echevarria, L., Eisenstein, D. J., Pindor, B., Olszewski, E. W., Harding, P., Holland, S. T., Bersier, D., 2003, Astrophys. J. 591, L 17.CrossRefADSGoogle Scholar
  112. Steinacker, A., Papaloizou, J. C. B., 2002, Astrophys. J. 571, 413.CrossRefADSGoogle Scholar
  113. Stephens, A. W., Frogel, J. A., DePoy, D. L., Freedman, W., Gallart, C., Jablonka, P., Renzini, A., Rich, R. M., Davies, R., 2003, Astron. J. 125, 2473.CrossRefADSGoogle Scholar
  114. Strom, S. E., 1995, Rev. Mex. Astron. Astrofís. Conf. Ser. 1, 317.ADSGoogle Scholar
  115. Théado, S., Vauclair, S., 2003a, Astrophys. J. 587, 784.ADSGoogle Scholar
  116. Théado, S., Vauclair, S., 2003b, Astrophys. J. 587, 795.ADSGoogle Scholar
  117. Timmes, F. X., Brown, E. F., Truran, J. W., 2003, Astrophys. J. 590, L 83.CrossRefADSGoogle Scholar
  118. Tonry, J. L., Schmidt, B. P., Barris, B., Candia, P., Challis, P., Clocchiatti, A., Coil, A. L., Filippenko, A. V., Garnavich, P., Hogan, C., Holland, S. T., Jha, S., Kirshner, R. P., Krisciunas, K., Leibundgut, B., Li, W., Matheson, T. Phillips, M. M., Riess, A. G., Schommer, R., Smith, R. C., Sollerman, J., Spyromilio, J., Stubbs, C. W., Suntzeff, N. B., 2003, Astrophys. J. 594, 1.CrossRefADSGoogle Scholar
  119. Trimble, V., Aschwanden, M. J., 2004, Publ. Astron. Soc. Pacific 116, 187.CrossRefADSGoogle Scholar
  120. Vakili, F., 2003, High Dynamic Imaging of Luminous Massive Stars, in Astronomy with High Contrast Imaging: From Planetary Systems to Active Galactic Nuclei, Aime, C., Soummer, R. (eds.), EAS Publ. Ser. Vol. 8, EDP Sciences, Les Ulis, France, p. 49.Google Scholar
  121. Valentini, G., Di Carlo, E., Massi, F., Dolci, M., Arkharov, A. A., Larionov, V. M., Pastorello, A., Di Paola, A., Benetti, S., Cappellaro, E., Turatto, M., Pedichini, F, DŠAlessio, F., Caratti o Garatti, A., Li Causi, G., Speziali, R., Danziger, I. J., Tornambé, A., 2003, Astrophys J. 595, 779.CrossRefADSGoogle Scholar
  122. Vauclair, S., Théado, S., 2003, Astrophys. J. 587, 777.CrossRefADSGoogle Scholar
  123. Vidal-Madjar, A., Lecavelier des Etangs, A., Désert, J.-M., Ballester, G. E., Ferlet, R., Hébrard, G., Mayor, M., 2003, Nature 422, 143.CrossRefADSGoogle Scholar
  124. Wahhaj, Z., Koerner, D. W., Ressler, M. E., Werner, M. W., Backman, D. E., Sargent, E. L., 2003, Astrophys. J. 584, L 27.CrossRefADSGoogle Scholar
  125. Wang, Y., Freese, K., Gondolo, P., Lewis, M., 2003, Astrophys. J. 594, 25.ADSGoogle Scholar
  126. Weinberger, A. J., Becklin, E. E., Zuckerman, B., 2003, Astrophys. J. 584, L 33.CrossRefADSGoogle Scholar
  127. Winters, W., Balbus, S., Hawley, J., 2003, Astrophys. J. 589, 543.CrossRefADSGoogle Scholar
  128. Yorke, H., Sonnhalter, C., 2002, Astrophys. J. 569, 846.CrossRefADSGoogle Scholar
  129. Yoshida, N., Abel, T., Hernquist, L., Sugiyama, N., 2003, Astrophys. J. 592, 645.CrossRefADSGoogle Scholar
  130. Zuckerman, B., Forveille, T., Kastner, J. H., 1995, Nature 373, 494.CrossRefADSGoogle Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  • Arne Ardeberg
    • 1
  • Torben Andersen
    • 1
  1. 1.Lund ObservatorySweden

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