References

 
• Abramson, I. S. 1982, Ann. Statist., 10, 1217  
• Butler, R. P., Marcy, G. W., Fischer, D. A., et al. 1999, ApJ, 526, 916 NASA ADS  
• Cerf, N., & Boffin, H. M. J. 1994, Inverse Problems, 10, 533  
• Chandrasekhar, S., & Münch, G. 1950, ApJ, 111, 142 NASA ADS  
• Charbonneau, D., Brown, T. M., Latham, D. W., & Mayor, M. 2000, ApJ, 529, L45 NASA ADS  
• Halbwachs, J. L., Arenou, F., Mayor, M., Udry, S., & Queloz, D. 2000, A&A, 355, 581 NASA ADS  
• Han, I., Black, D., & Gatewood, G. 2001, ApJ, 548, L57 NASA ADS  
• Härdle, W. 1990, Applied nonparametric regression (Cambridge University Press, Cambridge)  
• Lucy, L. B. 1974, AJ, 79, 745 NASA ADS  
• Lupton, R. 1993, Statistics in theory and practice (Princeton University Press, Princeton)  
• Marcy, G. W., Butler, R. P., Fischer, D. A., Vogt, S., & Lissauer, J. 2001, ApJ, 556, 296 NASA ADS  
• Mayor, M., Naef, D., Pepe, F., et al. 2000, in Planetary Systems in the Universe: Observations, Formation and Evolution, ed. A. Penny, P. Artymowicz, A.-M. Lagrange, & S. Russell, ASP Conf. Ser., in press  
• Nadaraya, E. A. 1964, Theor. Probab. Appl., 10, 186  
• Pourbaix, D. 2001, A&A, 369, L22 NASA ADS  
• Pourbaix, D., & Arenou, F. 2001, A&A, 372, 935 NASA ADS  
• Richardson, W. H. 1972, J. Opt. Soc. Am., 62, 55 NASA ADS  
• Scott, D. W. 1992, Multivariate Density Estimation (Wiley, New York)  
• Silverman, B. W. 1986, Density estimation for statistics and data analysis, Monographs on Statistics and Applied Probability (London: Chapman and Hall)  
• Tabachnik, S., & Tremaine, S. 2001, AJ, in press  
• Udry, S., Mayor, M. 2001, in Astrobiology, Lect. Notes Phys. (Springer Verlag)  
• Udry, S., Mayor, M., Naef, D., et al. 2000a, A&A, 356, 590 NASA ADS  
• Udry, S., Mayor, M., & Queloz, D. 2000b, in Planetary Systems in the Universe: Observations, Formation and Evolution, ed. A. Penny, P. Artymowicz, A.-M. Lagrange, & S. Russell, ASP Conf. Ser., in press  
• Watson, G. S. 1964, Sankhya, Ser. A, 26, 359  
• Zapatero Osorio, M. R., Bejar, V. J. S., Martin, E. L., et al. 2000, Science, 290, 103 NASA ADS  
• Zucker, S., & Mazeh, T. 2001, ApJ, in press