Solar System Research

, Volume 43, Issue 4, pp 291–300 | Cite as

Some specific features of light curves of (39) Laetitia, (87) Sylvia, (90) Antiopa, and 2006 VV2 asteroids

  • I. A. Vereshchagina
  • D. L. Gorshanov
  • A. V. Devyatkin
  • P. G. Papushev
Article

Abstract

The results of photometric observations of (87) Sylvia, 2006 VV2, (90) Antiopa, and (39) Laetitia asteroids in 2006–2008 are presented. The specific features of light curves are considered for each object. In particular, for asteroid (87) Sylvia, possible mutual phenomena in this triple system are identified. Asteroid 2006 VV2 manifests a strong dependence of the light curve on the filter color, which testifies to the presence of inhomogeneities on its surface. The previously unknown brightness variation period with a duration of about three days was obtained for this asteroid. For binary asteroid (90) Antiopa, the strong dependence of its brightness on the phase angle was noticed; this may testify to the very flattened shape of its components. Considerable time variations of the shape of the light curve for asteroid (39) Laetitia may testify either to its complex shape or to its binary character.

PACS numbers

95.85.Kr 96.25.De 96.30.Ys 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Alen, K. U., Astrophysical Quantities (Mir, Moscow, 1977) [in Russian].Google Scholar
  2. Vereshchagina, I. A. and Shor, V. A., “Dynamics of Binary System of Asteroid 1220 Crocus”, Izv. CAO, 2006, no. 218, pp. 61–67.Google Scholar
  3. Vinogradova, T. A., Zheleznov, N. B., Kuznetsov, V. B., et al., “Catalogue of Potentially Hazardous Asteroids and Comets”, Trudy IAA RAS, Efemeridn. Astron., 2009, issue 9.Google Scholar
  4. Vityazev, V. V., Wavelet Analysis of Time Series (Izd. St. Petersburg Uni., St. Petersburg, 2001) [in Russian].Google Scholar
  5. Vityazev, V. V., Analysis of Inhomogeneous Time Series (Izd. St. Petersburg Uni., St. Petersburg, 2001b) [in Russian].Google Scholar
  6. Devyatkin, A. V., Kanaev, I. I., Kulish, A. P., et al., “Automation of Astronomical Observations at ZA-320M”, Izv. CAO, 2004, no. 217, pp. 505–530.Google Scholar
  7. Devyatkin, A. V., Kulish, A. P., Shumakher, A. V., et al., “Optical Position Angle Sensor of Automated Telescope ZA-320M (Pulkovo Observatory) Optich. Zh., 2008, vol. 75, no. 1, pp. 73–79.Google Scholar
  8. Devyatkin, A. V., Gorshanov, D. L., Kupriyanov, V. V., et al., “Astrometric and Photometric Observations of Bodies of Solar System at Automated Mirror Astrograph ZA-320M (Pulkovo Observatory)”, Astron. Vestn., 2009, vol 43(3), pp. 1–11.Google Scholar
  9. Kamus, S. V., Tergoev, V. I., and Denisenko, S. A., “Wide-Angle Astronomical Telescope”, Optich. Zh., 2002, vol. 69, no. 9, pp. 84–87.Google Scholar
  10. Kanaev, I. I., Devyatkin, A. V., Kulish, A. P., et al., “Automation of Astronoical Observations at ZA-320M”, Izv. CAO, 2002, no. 216, pp. 128–156.Google Scholar
  11. Prokof’eva, V. V., Demchik, M. I., “Frequency Analysis of Simultaneous BVR Observations of Asteroid 87 Sylvia and its Binary Character”, Pisma Astron. Zh., 1994, vol. 20, no. 4, pp. 299–316.ADSGoogle Scholar
  12. Binzel, R., “Is 1220 Crocus a Precessing Binary Asteroid?” Icarus, 1985, vol. 63, pp. 99–108.CrossRefADSGoogle Scholar
  13. Cellino, A., Pannunzio, R., Zappala, V., et al., “Do We Observe Light Curves of Binary Asteroids?”, Astron. Astrophys., 1985, vol. 144, no. 2, pp. 355–362.ADSGoogle Scholar
  14. Descamps, P., Marchis, F., Michalowski, T., et al., “Figure of the Double Asteroid 90 Antiope from Adaptive Optics and Lightcurve Observations”, Icarus, 2007, vol. 187, no. 2, pp. 482–499.CrossRefADSGoogle Scholar
  15. Descamps, P., Marchis, F., Pollock, J., et al., New Determination of the Size and Bulk Density of the Binary Asteroid 22 Kalliope from Observations of Mutual Eclipses”, Icarus, 2008, vol. 196, no. 2, pp. 578–600.CrossRefADSGoogle Scholar
  16. Devyatkin, A.V., Gorshanov, D.L., Gritsuk, A.N., et al., “Observations and Theoretical Analysis of Lightcurves of Natural Satellites of Planets”, Solar Syst. Res, 2002, vol. 36, no. 3, pp. 248–259.CrossRefADSGoogle Scholar
  17. Devyatkin, A.V and Kulish, A.P, in Proceedings of IAU Symposium 236 Near Earth Objects, our Celestial Neighbors: Opportunity and Risk., ed. by Valsecchi, G. B., Vorkouhlicky, D. (Cambridge Univ. Press, Cambridge, 2007).Google Scholar
  18. Devyatkin, A. V., Gorshanov, D. L., and Aleshkina, E. Yu., “Photometric Observations of Solar System Bodies with ZA-320M Automatic Mirror Astrograph in Pulkovo Observatory”, Planet. Space Sci., 2008, vol. 56, no. 14, pp. 1888–1892.CrossRefADSGoogle Scholar
  19. Helin, E. F., Pravdo, S., Lawrence, K., et al., “2006 VV2”, Minor Planet Electronic Circ., 2006, pp. 2006-W87.Google Scholar
  20. Kaasalainen, M., Lamberg, L., and Lumme, K., “Interpretation of Lightcurves of Atmosphereless Bodies”, Astron. Astrophys., 1992, vol. 259, pp. 333–340.ADSGoogle Scholar
  21. Marchis, F., Descamps, P., Hestroffer, D., Berthier, J. “Discovery of the Triple Asteroidal System 87 Sylvia”, Nature, 2005, vol. 436, pp. 822–824.CrossRefADSGoogle Scholar
  22. Merline, W. J., Close, L. M., Dumas, C., et al., “Discovery of Companions To Asteroids 762 Pulcova and 90 Antiope by Direct Imaging”, Bull. Am. Astron. Soc., 2000, vol. 32, p. 1017.ADSGoogle Scholar
  23. Michalowski, T., Colas, F., Kwiatkowski, T., et al., “Eclipsing Events in the Binary System of the Asteroid 90 Antiope”, Astron. Astrophys., 2002, vol. 396, pp. 293–299.CrossRefADSGoogle Scholar
  24. Prokof’eva, V. V. and Karachkina, L. G., “Satellites of Two Large Asteroids”, Trans, 1998, vol. 15, pp. 219–224.Google Scholar
  25. Scargle, J. D., “Studies in Astronomical Time Series Analysis. II. Statistical Aspects of Spectral Analysis of Unevenly Spaced Data”, Astrophys. J., 1982, vol. 263, pp. 835–853.CrossRefADSGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • I. A. Vereshchagina
    • 1
  • D. L. Gorshanov
    • 1
  • A. V. Devyatkin
    • 1
  • P. G. Papushev
    • 2
  1. 1.Pulkovo ObservatoryRussian Academy of SciencesSt. PetersburgRussia
  2. 2.Institute of Solar-Terrestrial Physics, Siberian BranchRussian Academy of SciencesIrkutskRussia

Personalised recommendations