Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· References in the article
· Citations to the Article (1) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Photometry of 2004 RZ164: a probable binary asteroid
Authors:
Kwiatkowski, T.; Kryszczynska, A.; Marciniak, A.; Borczyk, W.; Masi, G.; Galád, A.; Goncalves, R.; Colas, F.
Affiliation:
AA(Astronomical Observatory, Adam Mickiewicz University, Sloneczna 36, 60-286 Poznan, Poland ), AB(Astronomical Observatory, Adam Mickiewicz University, Sloneczna 36, 60-286 Poznan, Poland), AC(Astronomical Observatory, Adam Mickiewicz University, Sloneczna 36, 60-286 Poznan, Poland), AD(Astronomical Observatory, Adam Mickiewicz University, Sloneczna 36, 60-286 Poznan, Poland), AE(Department of Physics, University of Rome Tor Vergata, via della Ricerca Scientifica 1, 00133 Rome, Italy), AF(Modra Observatory, Department of Astronomy, Physics of the Earth, and Meteorology, FMPI, Comenius University, 842 48 Bratislava, Slovakia; Astronomical Institute AS CR, 251 65 Ondrejov, Czech Republic), AG(Instituto Politecnico de Tomar, Area de Fisica, 2300-313 Tomar, Portugal), AH(Institut de Mécanique Céleste, 77 Av. Denfert Rochereau, 75014 Paris, France)
Publication:
Astronomy and Astrophysics, Volume 462, Issue 1, January IV 2007, pp.341-344 (A&A Homepage)
Publication Date:
01/2007
Origin:
EDP Sciences
Astronomy Keywords:
techniques: photometric, minor planets, asteroids
DOI:
10.1051/0004-6361:20065448
Bibliographic Code:
2007A&A...462..341K

Abstract

Aims:We observed a near-Earth asteroid 2004 RZ164 to study its rotational properties. The object was chosen because of its small diameter of about 700 m, which is close to the 150 m threshold, separating monolithic and rubble-pile asteroids.
Methods: With small telescopes at five observatories, equipped with CCD cameras, we obtained seven lightcurves, which were taken through the clear, R, and I filters.
Results: Despite significant changes in the observing geometries (and large phase angles during observations), the peak-to-peak amplitudes of the lightcurves never exceeded 0.15 m, suggesting the almost spheroidal shape of this asteroid. There is a signature of a probable occultation/eclipse event in one of the lightcurves, which suggests 2004 RZ164 is a binary asteroid. Its primary component spins with a period of P=2.5559 h ± 0.0001 h and the orbital period of the system is longer than 10.8 h.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints