Physical investigation of the potentially hazardous Asteroid (144898) 2004 VD17 (Articolo in rivista)

Type
Label
  • Physical investigation of the potentially hazardous Asteroid (144898) 2004 VD17 (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.icarus.2007.05.018 (literal)
Alternative label
  • De Luise F.; Perna D.; Dotto E.; Fornasier S.; Belskaya I.; Boattini A.; Valsecchi G.; Milani A.; Rossi A.; Lazzarin M.; Paolicchi P.; Fulchignoni M. (2007)
    Physical investigation of the potentially hazardous Asteroid (144898) 2004 VD17
    in Icarus (N.Y.N.Y. 1962)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • De Luise F.; Perna D.; Dotto E.; Fornasier S.; Belskaya I.; Boattini A.; Valsecchi G.; Milani A.; Rossi A.; Lazzarin M.; Paolicchi P.; Fulchignoni M. (literal)
Pagina inizio
  • 628 (literal)
Pagina fine
  • 635 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 191 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: Icarus, vol. 191 (2) pp. 628­ - 635. Elsevier, 2007. (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • INAF­-Osservatorio Astronomico di Roma, Via Frascati 33, I-00040 Monteporzio Catone, Roma, Italy; University of Rome \"Tor Vergata,\" Via della Ricerca Scientifica 1, I-00133 Roma, Italy; University of Paris VII, Denis Diderot/LESIA-Obs. of Paris, 5, place Jules Janssen, 92195 Meudon Cedex, France; Institute of Astronomy of Kharkiv National University, Sumska St. 35, 61022 Kharkiv, Ukraine; INAF­-IASF, Via del Fosso del Cavaliere 100, I-00133 Roma, Italy; Dipartimento di Matematica, University of Pisa, Largo Bruno Pontecorvo 5, I-56127 Pisa, Italy; ISTI­-CNR, Via Moruzzi 1, I-56124 Pisa, Italy; University of Padova, Dipartimento di Astronomia, Vicolo dell'Osservatorio 3, I-35122 Padova, Italy; Dipartimento di Fisica, University of Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy; University of Paris VII, Denis Diderot/LESIA-Obs. of Paris, 5, place Jules Janssen, 92195 Meudon Cedex, France (literal)
Titolo
  • Physical investigation of the potentially hazardous Asteroid (144898) 2004 VD17 (literal)
Abstract
  • In this paper we present the observational campaign carried out at ESO NTT and VLT in April and May 2006 to investigate the nature and the structure of the near-Earth object (144898) 2004 VD17. In spite of a great quantity of dynamical information, according to which it will have a close approach with the Earth in the next century, the physical properties of this asteroid are largely unknown. We performed visible and near-infrared photometry and spectroscopy, as well as polarimetric observations. Polarimetric and spectroscopic data allowed us to classify 2004 VD17 as an E-type asteroid. A good agreement was also found with the spectrum of the aubrite meteorite Mayo Belwa. On the basis of the polarimetric albedo (pv = 0.45) and of photometric data, we estimated a diameter of about 320 m and a rotational period of about 2 h. The analysis of the results obtained by our complete survey have shown that (144898) 2004 VD17 is a peculiar NEO, since it is close to the breakup limits for fast rotator asteroids, as defined by Pravec and Harris [Pravec, P., Harris, A.W., 2000. Icarus 148, 12­20]. These results suggest that a more robust structure must be expected, as a fractured monolith or a rubble pile in a strength regime [Holsapple, K.A., 2002. Speed limits of rubble pile asteroids: Even fast rotators can be rubble piles. In: Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids,Washington, September, 2002]. (literal)
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