Possible Duplicities of Five Asteroids
Affiliation(s)
1 Nihon University, Sakata, Yamagata, Japan. 2 Hamanowa Astronomical Observatory, Motomiya, Fukushima, Japan. 3 Hitachi, Ibaraki, Japan. 4 KEK, Tsukuba, Ibaraki, Japan.
1 Nihon University, Sakata, Yamagata, Japan. 2 Hamanowa Astronomical Observatory, Motomiya, Fukushima, Japan. 3 Hitachi, Ibaraki, Japan. 4 KEK, Tsukuba, Ibaraki, Japan.
ABSTRACT
Some evidences of possible duplicities of five asteroids are presented. A satellite of (279) Thule was convincingly detected by a stellar occultation on 2008 April 3 by Thule and also from follow-up light curve observations. The orbital period of the satellite is 3.007 or 6.014 days, and the minimum diameter is estimated to be 52 km. A satellite of (324) Bamberga was detected by secondary drops of the light curve in 2007. The rotation period of the primary is 1.22625 days, and the revolution period of the secondary is 3.00 or 6.00 days. Presumed contact duplicity of the main body of the L4 Trojan (624) Hektor was detected by a stellar occultation by Hektor on 2008 January 24. A possible satellite of (657) Gunl?d was suggested from a secondary occultation by Gunl?d on 2008 November 29. The minimum of the diameter is 7 km. A possible satellite of (739) Mandeville was suggested by stellar occultation observations on 1980 December 10.
Some evidences of possible duplicities of five asteroids are presented. A satellite of (279) Thule was convincingly detected by a stellar occultation on 2008 April 3 by Thule and also from follow-up light curve observations. The orbital period of the satellite is 3.007 or 6.014 days, and the minimum diameter is estimated to be 52 km. A satellite of (324) Bamberga was detected by secondary drops of the light curve in 2007. The rotation period of the primary is 1.22625 days, and the revolution period of the secondary is 3.00 or 6.00 days. Presumed contact duplicity of the main body of the L4 Trojan (624) Hektor was detected by a stellar occultation by Hektor on 2008 January 24. A possible satellite of (657) Gunl?d was suggested from a secondary occultation by Gunl?d on 2008 November 29. The minimum of the diameter is 7 km. A possible satellite of (739) Mandeville was suggested by stellar occultation observations on 1980 December 10.
Cite this paper
Satō, I. , Hamanowa, H. , Tomioka, H. and Uehara, S. (2015) Possible Duplicities of Five Asteroids. International Journal of Astronomy and Astrophysics, 5, 193-207. doi: 10.4236/ijaa.2015.53024.
Satō, I. , Hamanowa, H. , Tomioka, H. and Uehara, S. (2015) Possible Duplicities of Five Asteroids. International Journal of Astronomy and Astrophysics, 5, 193-207. doi: 10.4236/ijaa.2015.53024.
References
[1] Neese, C., Ed. (2010) Asteroid Taxonomy V6.0. EAR-A-5-DDR-TAXONOMY-V6.0. NASA Planetary Data System. [2] Zappala, V., Di Martino, M., Cellino, A., Farinella, P., De Sanctis, G. and Ferreri, W. (1989) Rotation Properties of Outer Belt Asteroids. Icarus, 82, 354-368.
http://dx.doi.org/10.1016/0019-1035(89)90043-2 [3] Millis, R.L., Wasserman, L.H., Franz, O.G., Bowell, E., Nye, R.A., Thompson, D.T., White, N.M., Hubbard, W.B., Eplee Jr., R.E., Lebofsky, L.A., Marcialis, R.L., Greenberg, R.J., Hunten, D.M., Reitsema, H.J., Qian, B., Dunham, D.W., Maley, P.D., Klemola, A.R. and Yeomans, D.K. (1989) Observation of the 8 December 1987 Occultation of AG +40° 0783 by 324 Bamberga. Astronomical Journal, 98, 1094-1099 [4] Gehrels, T. and Owings, D. (1962) Photometric Studies of Asteroids IX. Additional Light Curves. Astrophysical Journal, 135, 906-924.
http://dx.doi.org/10.1086/147334 [5] Scaltriti, F., Zappala, V., Stanzel, R., Blanco, C., Catalano, S. and Young, J.W. (1980) Lightcurves and phase relation of asteroid 324 Bamberga. Icarus, 43, 391-398.
http://dx.doi.org/10.1016/0019-1035(80)90184-0 [6] Lagerkvist, C.I., Magnusson, P., Williams, I.P., Buontempo, M.E., Gibbs, P. and Morrison, L.V. (1989) Physical Studies of Asteroids. XIX—Phase Relations and Composite Lightcurves Obtained with the Carlsberg Meridian Circle. Astronomy & Astrophysics Supplement Series, 78, 519-532. [7] Satō I., Buie, M., Maley, P.D., Hamanowa, H., Tsuchikawa, A. and Dunham, D.W. (2014) A 3-D Shape of (704) Interamnia from Its Occultations and Lightcurves. International Journal of Astronomy and Astrophysics, 4, 91-118.
http://dx.doi.org/10.4236/ijaa.2014.41010 [8] Marchis, F., Wong, M.H., Berthier, J., Descamps, P., Hestroffer, D., Vachier, F., Le Mignant, D.W.M. and de Pater, I. (2006) S/2006 (624) 1. IAU Circular No. 8732. [9] Dunlap, J.L. and Gehrels, T. (1969) Minor Planet III. Lightcurves of a Trojan Asteroid. Astronomical Journal, 74, 796-803.
http://dx.doi.org/10.1086/110860 [10] Hartmann, W.K. and Cruikshank, D.P. (1978) The Nature of Trojan Asteroid 624 Hektor. Icarus, 36, 353-366.
http://dx.doi.org/10.1016/0019-1035(78)90114-8 [11] Zappala, V. and Knezevic, Z. (1984) Rotation Axes of Asteroids: Results for 14 Objects. Icarus, 59, 436-455.
http://dx.doi.org/10.1016/0019-1035(84)90112-X [12] Magnusson, P. (1986) Distribution of Spin Axes and Senses of Rotation for 20 Large Asteroids. Icarus, 68, 1-39.
http://dx.doi.org/10.1016/0019-1035(86)90072-2 [13] Michalowski, T. (1988) Photometric Astronomy Applied to Asteroids: 6, 15, 43, and 624. Acta Astronomica, 38, 455-468. [14] Dahlgren, M., Fitzsimmons, A., Lagerkvist, C.-I. and Williams, I.P. (1991) Differential CCD Photometry of Dubiago, Chron and Hektor. Monthly Notice of the Royal Astronomical Society, 250, 115-118.
http://dx.doi.org/10.1093/mnras/250.1.115 [15] De Angelis, G. (1992) New Asteroid Pole Determinations. In: Brahic, A., Gerard, J.-C. and Surdej, J., Eds., Observations and Physical Properties of Small Solar System Bodies, Universite de Liege, Institut d’Astrophysique, Liege, 195-201. [16] Detal, A., Hainaut, O., Ibrahim-Denis, A., Pospieszalska-Surdej, A., Schils, P., Schober, H.J. and Surdej, J. (1994) Pole, Albedo and Shape of the Minor Planets 624 Hektor and 43 Ariadne: Two Tests for Comparing Four Different Pole Determination Methods. Astronomy & Astrophysics, 281, 269-280. [17] De Angelis, G. (1995) Asteroid Spin, Pole and Shape Determinations. Planetary Space Science, 43, 649-682.
http://dx.doi.org/10.1016/0032-0633(94)00151-G [18] Hainaut-Rouelle, M.-C., Hainaut, O.R. and Detal, A. (1995) Light Curves of Selected Minor Planets. Astronomy & Astrophysics Supplement Series, 112, 125-142. [19] Blanco, C. and Riccioli, D. (1998) Pole Coordinates and Shape of 30 Asteroids. Astronomy and Astrophysics Supplement Series, 131, 385-394.
http://dx.doi.org/10.1051/aas:1998277 [20] Dunham, D.W., Herald, D., Frappa, E., Hayamizu, T., Talbot, J. and Timerson, B. (2014) Asteroid Occultations V12.0. EAR-A-3-RDR-OCCULTATIONS-V12.0. NASA Planetary Data System.
[1] Neese, C., Ed. (2010) Asteroid Taxonomy V6.0. EAR-A-5-DDR-TAXONOMY-V6.0. NASA Planetary Data System. [2] Zappala, V., Di Martino, M., Cellino, A., Farinella, P., De Sanctis, G. and Ferreri, W. (1989) Rotation Properties of Outer Belt Asteroids. Icarus, 82, 354-368.
http://dx.doi.org/10.1016/0019-1035(89)90043-2 [3] Millis, R.L., Wasserman, L.H., Franz, O.G., Bowell, E., Nye, R.A., Thompson, D.T., White, N.M., Hubbard, W.B., Eplee Jr., R.E., Lebofsky, L.A., Marcialis, R.L., Greenberg, R.J., Hunten, D.M., Reitsema, H.J., Qian, B., Dunham, D.W., Maley, P.D., Klemola, A.R. and Yeomans, D.K. (1989) Observation of the 8 December 1987 Occultation of AG +40° 0783 by 324 Bamberga. Astronomical Journal, 98, 1094-1099 [4] Gehrels, T. and Owings, D. (1962) Photometric Studies of Asteroids IX. Additional Light Curves. Astrophysical Journal, 135, 906-924.
http://dx.doi.org/10.1086/147334 [5] Scaltriti, F., Zappala, V., Stanzel, R., Blanco, C., Catalano, S. and Young, J.W. (1980) Lightcurves and phase relation of asteroid 324 Bamberga. Icarus, 43, 391-398.
http://dx.doi.org/10.1016/0019-1035(80)90184-0 [6] Lagerkvist, C.I., Magnusson, P., Williams, I.P., Buontempo, M.E., Gibbs, P. and Morrison, L.V. (1989) Physical Studies of Asteroids. XIX—Phase Relations and Composite Lightcurves Obtained with the Carlsberg Meridian Circle. Astronomy & Astrophysics Supplement Series, 78, 519-532. [7] Satō I., Buie, M., Maley, P.D., Hamanowa, H., Tsuchikawa, A. and Dunham, D.W. (2014) A 3-D Shape of (704) Interamnia from Its Occultations and Lightcurves. International Journal of Astronomy and Astrophysics, 4, 91-118.
http://dx.doi.org/10.4236/ijaa.2014.41010 [8] Marchis, F., Wong, M.H., Berthier, J., Descamps, P., Hestroffer, D., Vachier, F., Le Mignant, D.W.M. and de Pater, I. (2006) S/2006 (624) 1. IAU Circular No. 8732. [9] Dunlap, J.L. and Gehrels, T. (1969) Minor Planet III. Lightcurves of a Trojan Asteroid. Astronomical Journal, 74, 796-803.
http://dx.doi.org/10.1086/110860 [10] Hartmann, W.K. and Cruikshank, D.P. (1978) The Nature of Trojan Asteroid 624 Hektor. Icarus, 36, 353-366.
http://dx.doi.org/10.1016/0019-1035(78)90114-8 [11] Zappala, V. and Knezevic, Z. (1984) Rotation Axes of Asteroids: Results for 14 Objects. Icarus, 59, 436-455.
http://dx.doi.org/10.1016/0019-1035(84)90112-X [12] Magnusson, P. (1986) Distribution of Spin Axes and Senses of Rotation for 20 Large Asteroids. Icarus, 68, 1-39.
http://dx.doi.org/10.1016/0019-1035(86)90072-2 [13] Michalowski, T. (1988) Photometric Astronomy Applied to Asteroids: 6, 15, 43, and 624. Acta Astronomica, 38, 455-468. [14] Dahlgren, M., Fitzsimmons, A., Lagerkvist, C.-I. and Williams, I.P. (1991) Differential CCD Photometry of Dubiago, Chron and Hektor. Monthly Notice of the Royal Astronomical Society, 250, 115-118.
http://dx.doi.org/10.1093/mnras/250.1.115 [15] De Angelis, G. (1992) New Asteroid Pole Determinations. In: Brahic, A., Gerard, J.-C. and Surdej, J., Eds., Observations and Physical Properties of Small Solar System Bodies, Universite de Liege, Institut d’Astrophysique, Liege, 195-201. [16] Detal, A., Hainaut, O., Ibrahim-Denis, A., Pospieszalska-Surdej, A., Schils, P., Schober, H.J. and Surdej, J. (1994) Pole, Albedo and Shape of the Minor Planets 624 Hektor and 43 Ariadne: Two Tests for Comparing Four Different Pole Determination Methods. Astronomy & Astrophysics, 281, 269-280. [17] De Angelis, G. (1995) Asteroid Spin, Pole and Shape Determinations. Planetary Space Science, 43, 649-682.
http://dx.doi.org/10.1016/0032-0633(94)00151-G [18] Hainaut-Rouelle, M.-C., Hainaut, O.R. and Detal, A. (1995) Light Curves of Selected Minor Planets. Astronomy & Astrophysics Supplement Series, 112, 125-142. [19] Blanco, C. and Riccioli, D. (1998) Pole Coordinates and Shape of 30 Asteroids. Astronomy and Astrophysics Supplement Series, 131, 385-394.
http://dx.doi.org/10.1051/aas:1998277 [20] Dunham, D.W., Herald, D., Frappa, E., Hayamizu, T., Talbot, J. and Timerson, B. (2014) Asteroid Occultations V12.0. EAR-A-3-RDR-OCCULTATIONS-V12.0. NASA Planetary Data System.