Abstract
The principal component (PC) and G-mode multivariate statisticshave been used in analysing the set of the 34 Edgeworth–Kuiper objects (EKOs) – 23 Trans NeptunianObjects (TNO) and 11 Centaurs – for which B, V, R, I, J homogeneous photometry were available.The results obtained show that V-I and V-Js are the key parameters in structuring the sample inhomogeneous groups. The PC1 axis (which contains ∼93% of the sample total variance) spans fivetimes more than the PC2 (which contains ∼6% of the sample total variance). The extremesof the PC1 axis contain the objects having a flat spectrum (low PC1 values) and a very red spectrumrespectively. Independently, the G-mode analysis allows us to distinguish six homogeneous groups of objectswhich confirm and extend the results obtained with the PC analysis. In addition to these groups, a few objectsremain not included in any group (i.e., does not have significant similitude with other objects) and yet givean indication of a more complex compositional structure of the sample. These preliminary results will haveto be confirmed and completed when a larger sample is available, but they provide some interesting hintsfor understanding the – mainly collisional – evolution of the EKOs.
Article PDF
Similar content being viewed by others
References
Barucci, M. A., Capria, M. T., Coradini, A., and Fulchignoni, M.: 1987, Icarus 72, 304.
Barucci, M. A., Doressoundiram, A., Tholen, D., Fulchignoni, M., and Lazzarin, M.: 1999, Icarus 142, 476.
Barucci, M. A., Romon, J., Doressoundiram, A., and Tholen, D. J.: 2000. AJ 120, 496.
Barucci, M. A., Fulchignoni, M., Birlan, M., Doressoundiram, A., Romon, J., and Boehnard, H.: 2001, A&A 371, 1150.
Binzel, R. P.: 1992, Icarus 99, 238.
Binzel, R. P. and Xu, S.: 1993, Science 260, 186.
Boehnhardt, H., Tozzi, G. P., Birkle, K., Hainaut, O., Sekiguchi, T., Vair, M., Watanabe, J., Rupprecht, G., and The FORS Instrument Team: 2001, A&A, 378, 653.
Boehnhardt, H., Delsanti, A., Barucci, A., Hainaut, O., Doressoundiram, A., Lazzarin, M., Barrera, L., de Bergh, C., Birkle, K., Dotto, E., Meech, K., Ortiz, J. E., Romon, J., Sekiguchi, T., Thomas, N., Tozzi, G. P., Watanabe, J., and West, R. M.: 2002, A&A 395, 297.
Brown, W. R. and Luu, J. X.: 1997, BAAS 29, 1021.
Bus, S. J. and Binzel, R. P.: 2002, Icarus 158, 146.
Consolmagno, G., Tegler, S. C., Rettig, T., and Romanishin, W.: 2000, BAAS 32
Coradini, A., Fulchignoni, M, Fanucci, O. et al.: 1977, Comput. Geosci. 3, 85.
Davies, J. K., Sykes, M. V., and Cruikshank, D. P.: 1993, Icarus 102, 166.
Davies, J. K., McBride, N., Ellison, S. L., Green, S. F., and Ballantyne, D. R.: 1998, Icarus 134, 213.
Davies, J. K.: 2000, ‘In Minor Bodies of the Outer Solar System’ in A. Fitzsimmons, D. Jewitt, and R. M. West (eds.), ESO Astrophysical Symposia, Vol. 9, Springer-Verlag, Berlin, Heidelberg.
Davies, J. K., Green, S., McBride, N., Muzzerall, E., Tholen, D. J., Whiteley, R. J., Foster, M. J., and Hillier, J. K.: 2000, Icarus 146, 253.
Davies, J. K., Tholen, D. J., Whiteley, R. J., Green, S., Hillier, J. K., Foster, M. J., McBride, N., Kerr, T. H., and Muzzerall, E.: 2001, Icarus 150, 69.
Delsanti, A. C., Boehnhardt, H., Barrera, L., Meech, K. J., Sekiguchi, T., and Hainaut, O. R.: 2001, A&A 380, 347.
Delsanti, A., Hainaut, O., Jourdeuil, E., Meech, K. J., Boehnhardt, H., and Barrera, L.: 2003, A&A (in press).
Doressoundiram, A. Barucci, M. A. Romon, J., and Veillet, C.: 2001, Icarus 154, 277.
Doressoundiram, A., Peixinho, N., de Bergh, C., Fornasier, S., Thébault, P., Barucci, M. A., and Veillet, C.: 2002, AJ 124, 2279.
Ferrin, I., Rabinowitz, D., Schaefer, B., Snyder, J., Hellman, N., Vicente, B., Rengstorf, A., Depoy, D., Salim, S. et al.: 2001, ApJ 548L, 243.
Fulchignoni, M., Birlan, M., and Barucci, M. A.: 2000, Icarus 146, 204.
Gil-Hutton, R. and Licandro, J.: 2001, Icarus 152, 246.
Hainaut, O. R., Delahodde, C. E., Boehnhardt, H., Dotto, E., Barucci, M. A., Meech, K. J., Bauer, J. M., West, R. M., and Doressoundiram, A.: 2000, A&A 356, 1076.
Hardorp, J.: 1980, A&A 91, 221.
Hartmann, W. K., Cruikshank, D. P., Degewij, J., and Capps, R. W.: 1981, Icarus 47, 333.
Hartmann, W. K., Cruikshank, D. P., and Degewij, J.: 1982, Icarus 52, 377.
Jewitt, D. and Kalas, P.: 1998, ApJ 499L, 103.
Jewitt, D. and Luu, J. X.: 1998, AJ 115, 1667.
Jewitt, D. and Luu, J. X.: 2001, AJ 122, 2099.
Jewitt, D. and Sheppard, S. S.: 2002, AJ 123, 2110.
Luu, J. X. and Jewitt, D.: 1996a, AJ 112, 2310.
Luu, J. K. and Jewitt, D.: 1996b, AJ 111, 499.
MacBride, N., Davies, J. K., Green, S. F., and Foster, M. J.: 1999, M.N.R.A.S. 306, 799.
Mac Bride, N., Green, S. F., Davies, J. K., Tholen, D. J., Sheppard, S. S., Witheley, R. J., and Hillier, J. K.: 2003, Icarus 161, 501.
Mueller, B. E. A., Tholen, D. J., Hartmann, W. K., and Cruikshank, D. P.: 1992, Icarus 97, 150.
Parker, J. W., Stern, S. A., Festou, M. C., A'Hearn, M. F., and Weintraub, D.: 1997, AJ 113, 1899.
Reyment, R. and Joreskog, K. G.: 1993, Applied Factor Analysis in Natural Sciences, Cambridge University Press, Cambridge.
Romanishin, W., Tegler, S. C., Levin, J., and Butler, N.: 1997, AJ 113, 1893.
Romanishin, W. and Tegler, S. C.: 1999, Nature 398, 129.
Romon-Martin, J., Barucci, M. A., de Bergh, C., Doressoundiram, A., Peixinho, N., and Poulet, F.: 2002, Icarus 160, 59.
Tedesco, E. F., Veeder, G. J., Fowler, J.W., and Chillemi, J. R.: 1992, The IRAS Minor Planet Survey. Final Report. PL-TR-92-2049, Phillips Laboratory, Airforce Material Command Hanscom Air Force Base, MA 01731-3010.
Tegler, S. C. and Romanishin, W.: 1997, Icarus 126, 212.
Tegler, S. C. and Romanishin, W.: 1998, Nature 392, 49.
Tegler, S. C. and Romanishin, W.: 2000, Nature 407, 979.
Tholen, D. J.: 1984, Ph.D. Thesis, University of Arizona.
Weintraub, D., Tegler, S. C., and Romanishin, W.: 1997, Icarus 128, 456.
Wood, H. J. and Kuiper, G. P.: 1963, AJ 137, 1279.
Zellner, B., Tholen, D. J., and Tedesco, E. F.: 1985, Icarus 61, 355.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Fulchignoni, M., Delsanti, A., Barucci, M.A. et al. Toward a Taxonomy of the Edgeworth–Kuiper Objects: A Multivariate Approach. Earth, Moon, and Planets 92, 243–250 (2003). https://doi.org/10.1023/B:MOON.0000031940.59946.6b
Issue Date:
DOI: https://doi.org/10.1023/B:MOON.0000031940.59946.6b