Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

We present two-colour CCD imaging of 2060 Chiron obtained between 1996 and 1998 with the 2.15 m telescope at CASLEO (San Juan, Argentina). These post-perihelion observations show that Chiron was then near its historical brightness minima, however, a coma was clearly detected. The dynamical state of the coma is studied by means of azimuthally averaged surface brightness profiles, which show the signatures of radiation pressure on the dust grain distribution. Aperture photometry shows an achromatic dimming with an amplitude ≈ 0.09 mag in approximately 1 h. If due to rotation of the nucleus, this rather high amplitude is used to derive a new value for the nuclear magnitude, m0 ≈ 6.80 mag. © 2001 Elsevier Science Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Cometary activity in 2060 Chiron at minimum brightness
Autor:Silva, A.M.; Cellone, S.A.
Filiación:Inst. Astronomia y Fis. del Espacio, C. C. 67 Suc. 28, 1428, Buenos Aires, Argentina
Fac. de Cie. Astronomicas y Geofis., Universidad Nacional de La Plata, Paseo del Basque, 1900 La Plata, Argentina
Complejo Astron. El Leoncito, Argentina
Año:2001
Volumen:49
Número:13
Página de inicio:1325
Página de fin:1330
DOI: http://dx.doi.org/10.1016/S0032-0633(01)00052-6
Título revista:Planetary and Space Science
Título revista abreviado:Planet. Space Sci.
ISSN:00320633
CODEN:PLSSA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00320633_v49_n13_p1325_Silva

Referencias:

  • Bowell, E., Hapke, B., Domingue, D., Lumme, K., Peltoniemi, J., Harris, A.W., Applications of photometric models to asteroids (1989) Asteroids II, pp. 524-556. , Binzel, R.P., Gehrels, T., Matthews, M.S. (Eds.), The University of Arizona Press, Tucson, Arizona
  • Bus, S.J., Bowell, E., Harris, A.W., Hewitt, A.V., 2060 Chiron - CCD and electronographic photometry (1989) Icarus, 77, pp. 223-238
  • Bus, S.J., Buie, M.W., Schleicher, D.G., Stellar occultation by 2060 Chiron (1996) Icarus, 123, pp. 478-490
  • Elliot, J.E., Olkin, C.B., Dunham, E.W., Jet-like features near the nucleus of Chiron (1995) Nature, 373, pp. 46-49
  • Fanale, F.P., Salvail, J.R., The cometary activity of Chiron: A stratigraphie model (1997) Icarus, 125, pp. 397-405
  • Foster, M.J., Green, S.F., McBride, N., Davies, J.K., NOTE: Detection of water ice on 2060 Chiron (1999) Icarus, 141, pp. 408-410
  • Jewitt, D.C., Meech, K.J., Surface brightness profiles of 10 comets (1987) Astrophys. J., 317, pp. 992-1001
  • Landolt, A.U., UBVRI photometric standard stars in the magnitude range 11.5 < V < 16.0 around the Celestial Equator (1992) Astron. J., 104, pp. 340-371
  • Lazzaro, D., Florczak, M.A., Angeli, C.A., Photometric monitoring of 2060 Chiron's brightness at perihelion (1997) Planet. Space Sci., 45, pp. 1607-1614
  • Lazzaro, D., Florczak, M.A., Betzler, A., 2060 Chiron back to a minimum of brightness (1996) Planet. Space Sci., 44, pp. 1547-1550
  • Luu, J.X., Cometary activity in distant comets: Chiron (1993) PASP, 105, pp. 946-950
  • Luu, J.X., Jewitt, D.C., Cometary activity in 2060 Chiron (1990) Astron. J., 100, pp. 913-932
  • Luu, J.X., Jewitt, D.C., Trujillo, C., Water ice in 2060 Chiron and its implications for Centaurs and Kuiper belt objects (2000) Astrophys. J., 531, pp. L151-L154
  • Marcialis, R.L., Buratti, B.J., CCD photometry of 2060 Chiron in 1985 and 1991 (1993) Icarus, 104, pp. 234-243
  • Meech, K.J., Belton, M.J.S., (1989) IAU Circ. No. 4770
  • Meech, K.J., Belton, M.J.S., The atmosphere of 2060 Chiron (1990) Astron. J., 100, pp. 1323-1338
  • Meech, K.J., Buie, M.W., Samarasinha, N.H., Mueller, B.E.A., Belton, M.J.S., Observations of structures in the inner coma of Chiron with the HST Planetary Camera (1997) Astron. J., 113, pp. 844-862
  • Orellana, R.B., Cellone, S.A., Silva, A., (1998) 2060 Chiron, , M.P.C. 33165
  • Prialnik, D., Brosch, N., Ianovici, D., Modelling the activity of 2060 Chiron (1995) MNRAS, 276, pp. 1148-1154
  • Stern, A., Campins, H., Chiron and the Centaurs: Escapees from the Kuiperbelt (1996) Nature, 382, pp. 507-510
  • West, R.M., A photometric study of (2060) Chiron and its coma (1991) Astron. Astrophys., 241, pp. 635-645

Citas:

---------- APA ----------
Silva, A.M. & Cellone, S.A. (2001) . Cometary activity in 2060 Chiron at minimum brightness. Planetary and Space Science, 49(13), 1325-1330.
http://dx.doi.org/10.1016/S0032-0633(01)00052-6
---------- CHICAGO ----------
Silva, A.M., Cellone, S.A. "Cometary activity in 2060 Chiron at minimum brightness" . Planetary and Space Science 49, no. 13 (2001) : 1325-1330.
http://dx.doi.org/10.1016/S0032-0633(01)00052-6
---------- MLA ----------
Silva, A.M., Cellone, S.A. "Cometary activity in 2060 Chiron at minimum brightness" . Planetary and Space Science, vol. 49, no. 13, 2001, pp. 1325-1330.
http://dx.doi.org/10.1016/S0032-0633(01)00052-6
---------- VANCOUVER ----------
Silva, A.M., Cellone, S.A. Cometary activity in 2060 Chiron at minimum brightness. Planet. Space Sci. 2001;49(13):1325-1330.
http://dx.doi.org/10.1016/S0032-0633(01)00052-6