[en] We report on spectroscopic and photometric observations through transits of the exoplanets WASP-22b and WASP-26b, intended to determine the systems' spin-orbit angles. We combine these data with existing data to refine the system parameters. We measure a sky-projected spin-orbit angle of 22 ± 16° for WASP-22b, showing the planet's orbit to be prograde and, perhaps, slightly misaligned. We do not detect the Rossiter-McLaughlin effect of WASP-26b due to its low amplitude and observation noise. We place 3-σ upper limits on orbital eccentricity of 0.063 for WASP-22b and 0.050 for WASP-26b. After refining the drift in the systemic velocity of WASP-22 found by Maxted et al. (2010, AJ, 140, 2007), we find the third body in the system to have a minimum-mass of 5.3 ± 0.3 MJup (a3 / 5 AU)2, where a3 is the orbital distance of the third body.
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Bibliography
Anderson, D. R., Collier Cameron, A., Gillon, M., et al. 2011 [arXiv:1105.3179]
Baranne, A., Queloz, D., Mayor, M., et al. 1996, A&AS, 119, 373
Bate, M. R., Lodato, G., & Pringle, J. E. 2010, MNRAS, 401, 1505
Boisse, I., Moutou, C., Vidal-Madjar, A., et al. 2009, A&A, 495, 959
Bruntt, H., Bedding, T. R., Quirion, P., et al. 2010, MNRAS, 405, 1907
Claret, A. 2000, A&A, 363, 1081
Claret, A. 2004, A&A, 428, 1001
Collier Cameron, A., Wilson, D. M., West, R. G., et al. 2007, MNRAS, 380, 1230
Enoch, B., Collier Cameron, A., Parley, N. R., & Hebb, L. 2010, A&A, 516, A33
Fabrycky, D., & Tremaine, S. 2007, ApJ, 669, 1298
Gillon, M., Jehin, E., Magain, P., et al. 2011, Detection and Dynamics of Transiting Exoplanets, St. Michel l'Observatoire, France, ed. F. Bouchy, R. Díaz, & C. Moutou, EPJ Web of Conferences, 11, 6002
Giménez, A. 2006, ApJ, 650, 408
Hébrard, G., Ehrenreich, D., Bouchy, F., et al. 2011, A&A, 527, L11
Hellier, C., Anderson, D. R., Collier-Cameron, A., et al. 2011, ApJ, 730, L31
Holt, J. R. 1893, A&A, 12, 646
Jehin, E., Gillon, M., Queloz, D., et al. 2011, The Messenger, 145, 2
Lai, D., Foucart, F., & Lin, D. N. C. 2011, MNRAS, 412, 2790
Lin, D. N. C., Bodenheimer, P., & Richardson, D. C. 1996, Nature, 380, 606
Mamajek, E. E., & Hillenbrand, L. A. 2008, ApJ, 687, 1264
Mandel, K., & Agol, E. 2002, ApJ, 580, L171
Marzari, F., & Nelson, A. F. 2009, ApJ, 705, 1575
Matsumura, S., Peale, S. J., & Rasio, F. A. 2010, ApJ, 725, 1995
Maxted, P. F. L., Anderson, D. R., Gillon, M., et al. 2010, AJ, 140, 2007
McLaughlin, D. B. 1924, ApJ, 60, 22
Morton, T. D., & Johnson, J. A. 2011, ApJ, 729, 138
Moutou, C., Diaz, R. F., Udry, S., et al. 2011, A&A, 533, A113
Nagasawa, M., Ida, S., & Bessho, T. 2008, ApJ, 678, 498
Naoz, S., Farr, W. M., Lithwick, Y., Rasio, F. A., & Teyssandier, J. 2011, Nature, 473, 187
Noyes, R. W., Weiss, N. O., & Vaughan, A. H. 1984, ApJ, 287, 769
Pepe, F., Mayor, M., Queloz, D., et al. 2005, The Messenger, 120, 22
Pollacco, D., Skillen, I., Collier Cameron, A., et al. 2008, MNRAS, 385, 1576
Rossiter, R. A. 1924, ApJ, 60, 15
Santos, N. C., Mayor, M., Naef, D., et al. 2000, A&A, 361, 265
Schlaufman, K. C. 2010, ApJ, 719, 602
Seager, S., & Mallén-Ornelas, G. 2003, ApJ, 585, 1038
Smalley, B., Anderson, D. R., Collier Cameron, A., et al. 2010, A&A, 520, A56
Stetson, P. B. 1987, PASP, 99, 191
Triaud, A. H. M. J., Collier Cameron, A., Queloz, D., et al. 2010, A&A, 524, A25
Winn, J. N., Holman, M. J., Henry, G. W., et al. 2007, AJ, 133, 1828
Winn, J. N., Fabrycky, D., Albrecht, S., & Johnson, J. A. 2010a, ApJ, 718, L145
Winn, J. N., Johnson, J. A., Howard, A. W., et al. 2010b, ApJ, 718, 575
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