methods: numerical; minor planets, asteroids: individual (P/2015 X6); Astronomy and Astrophysics; Space and Planetary Science; astro-ph.EP
Abstract :
[en] We present observations and dust tail models of activated asteroid P/2015 X6 from deep imaging data acquired at the 10.4 m Gran Telescopio Canarias (GTC) from 2015 mid-December to 2016 late January. The results of the modeling indicate that the asteroid has undergone sustained dust loss over a period of two months or longer. The dust parameters, derived from multidimensional fits of the available images, are compatible with either ice sublimation or rotational instability processes. An impulsive event, as might be associated with an impact with another body, is less likely. A power-law distribution of particles, with minimum and maximum radii of 1 μm and 1 cm and a power index of -3.3, is found to be consistent with the observations. Depending on the model of ejection velocity adopted, the particle velocities are found to be in the range of 0.3-10 m s-1. The activation time was between 18 and 26 days before discovery. The total mass ejected from that time to the most recent observation is in the range 5-9 × 106 kg. No dust features giving indication of past activity earlier than the activation time have been observed.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Moreno, F. ; Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain
Licandro, J. ; Instituto de Astrofísica de Canarias, La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de la Laguna (ULL), La Laguna, Tenerife, Spain
Cabrera-Lavers, A. ; Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain ; Departamento de Astrofísica, Universidad de la Laguna (ULL), La Laguna, Tenerife, Spain ; GTC Project, La Laguna, Tenerife, Spain
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Bowell E., Hapke B., Domingue D. et al 1989 Asteroids II ed R. P. Binzel, T. Gehrels and M. S. Matthews (Tucson, AZ: Univ. Arizona Press) 524
Cepa J. 2010 Highlights of Spanish Astrophysics V (Berlin: Springer)
Cepa J., Aguiar M., Escalera V. et al 2000 Proc. SPIE 4008 623
Cox A. N. 2000 Allen's Astrophysical Quantities (4th ed.; Berlin: Springer)
Della Corte V., Rotundi A., Fulle M. et al 2015 A&A 583 13
Drahus M., Waniak W., Tendulkar S. et al 2015 ApJL 802 L8
Finson M. and Probstein R. 1968 ApJ 154 327
Fukugita M., Ichikawa T., Gunn J. E. et al 1996 AJ 111 1748
Fulle M. 1989 A&A 217 283
Fulle M., Colangeli L., Agarwal J. et al 2010 A&A 522 63
Gibbs A. R., Sato H., Ryan W. H. et al 2012 CBET 3069 1
Giblin I. 1998 P&SS 46 921
Haghighipour N. 2009 M&PS 44 1863
Harris A. W. and Lagerros J. S. V. 2002 Asteroids III (Tucson, AZ: Univ. Arizona Press)
Hsieh H. H. and Jewitt D. 2006 Sci 312 561
Hsieh H. H., Jewitt D. and Fernández Y. 2004 AJ 127 2997
Hsieh H. H., Jewitt D. and Ishiguro M. 2009 AJ 137 157
Hsieh H. H., Jewitt D., Lacerda P. et al 2010 MNRAS 403 363
Hsieh H. H., Kaluna H. M., Novaković B. et al 2013 ApJL 771 L1
Hsieh H. H., Meech K. and Pittichova J. 2011 ApJL 736 L18
Hsieh H. H. and Sheppard S. S. 2015 MNRAS 454 L81
Hsieh H. H., Yang B. and Haghighipour N. 2012 ApJ 744 9
Jewitt D. 2012 AJ 143 21
Jewitt D., Agarwal J. and Hsieh H. 2015 Asteroids IV (Tucson, AZ: Univ. Arizona Press)
Jewitt D., Agarwal J., Li J. et al 2014 ApJL 784 L8
Jewitt D., Agarwal J., Weaver H. et al 2013 ApJL 778 L21
Jewitt D., Weaver H., Mutchler M. et al 2011 ApJL 733 L4
Jewitt D., Yang B. and Haghighipour N. 2009 AJ 137 4313
Kresak L. 1982 BAICz 33 104
Licandro J., Campins H., Tozzi G. P. et al 2011 A&A 532A 65L
Licandro J., Moreno F. and de León J. 2013 A&A 550A 17L
Lilly E. and Weryk R. 2015 CBET 4221
Masiero J. R., Mainzer A. K., Grav T. et al 2011 ApJ 741 68
Meech K. J. and Jewitt D. C. 1987 A&A 187 585
Moreno F., Lara L. M., Licandro J. et al 2011a ApJL 738 L16
Moreno F., Licandro J., Álvarez-Iglesias C. et al 2014 ApJ 781 118
Moreno F., Licandro J. and Cabrera-Lavers A. 2012a ApJL 761 L12
Moreno F., Licandro J., Ortiz J. L. et al 2011b ApJ 738 130
Moreno F., Pozuelos F., Aceituno F. et al 2012b ApJ 752 136
Moreno F., Pozuelos F., Aceituno F. et al 2012c ApJ 752 136
Moreno F., Snodgrass C., Hainaut O. et al 2016 A&A 587 A155
Nelder J. A. and Mead R. 1965 CompJ 7 308
Pozuelos F. J., Cabrera-Lavers A., Licandro J. et al 2015 ApJ 806 102
Press W. H., Teukolsky S. A., Vetterling W. T. and Flannery B. P. 1992 Numerical Recipes in FORTRAN (Cambridge: Cambridge Univ. Press)
Rotundi A., Sierks H., Della Corte V. et al 2015 Sci 347 3905
Stevenson R., Kramer E. A., Bauer J. M. et al 2012 ApJ 759 142
Tubbiolo A. F., Bressi T. H., Wainscoat R. J. et al 2015 MPEC 2015-X180
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.