349 Dembowska: A Minor Study of its Shape and Parameters

Details 349 Dembowska: A Minor Study of its Shape and Parameters 349 Dembowska: A Minor Study of its Shape and Parameters

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mpbu...35...88m&link_type=abstract

The Minor Planet Bulletin (ISSN 1052-8091). Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Obse

Physics

Scientific paper

Photometry of asteroid 349 Dembowska was obtained at a high-latitude aspect, yielding a synodic rotational period of 4.7029 ± 0.0054 h. Lightcurve inversion, performed with the new observations combined with archival photometry, yields an asymmetric elongated ellipsoid as the dominant shape solution. The absolute magnitude and phase coefficient for 349 Dembowska were determined using archival photometry to be Mv = 6.14 ± 0.07 and ßv = 0.022 ± 0.004 mag/degree. We estimate Dembowska’s diameter (143 km) by adopting a simple formalism to interpret the object's thermal emission and we demonstrate that the spectral energy distribution from the Two Micron All Sky Survey and the Sloan Digital Sky Survey can be used to reveal the known signature of olivine and pyroxene absorption near 1µm.

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