Title
Spectral properties of binary asteroids
Date Issued
11 July 2018
Access level
open access
Resource Type
journal article
Author(s)
Publisher(s)
Oxford University Press
Abstract
We present the first attempt to characterize the distribution of taxonomic class among the population of binary asteroids (15 per cent of all small asteroids). For that, an analysis of 0.8-2.5 μm near-infrared spectra obtained with the SpeX instrument on the NASA/IRTF (Infrared Telescope Facility) is presented. Taxonomic class and meteorite analogue is determined for each target, increasing the sample of binary asteroids with known taxonomy by 21 per cent. Most binary systems are bound in the S, X, and C classes, followed by Q and V types. The rate of binary systems in each taxonomic class agrees within uncertainty with the background population of small near-Earth objects and inner main belt asteroids, but for the C types which are under-represented among binaries.
Start page
5590
End page
5604
Volume
477
Issue
4
Language
English
OCDE Knowledge area
Astronomía
Subjects
Scopus EID
2-s2.0-85052510463
Source
Monthly Notices of the Royal Astronomical Society
ISSN of the container
00358711
Sponsor(s)
This article is based on observations acquired remotely with InfraRed Telescope Facilities from CODAM facilities. We thank the operator at IRTF for his contribution. This research utilizes spectra acquired with the NASA RELAB facility at Brown University. This research has made use of data and services provided by the International Astronomical Union's Minor Planet Center. M. P. acknowledges funding by the Pontificia Universidad Católica del Perú (PUCP). The authors acknowledge the use of TOPCAT (Taylor 2005), NEODYS-2 Database (http://Newton.dm.unipi.it/neodys/index.php? pc=0), the use of theVirtual Observatory tools Miriade7 (Berthier et al. 2008), and the Near-Earth Asteroids Data Base service from The European Asteroid Research Node (http://earn.dlr.de/nea/). The asteroid taxonomy classification based on SDSS observations was obtained from the Planetary Data System. Part of the data utilized in this publication were obtained and made available by The MIT-UH-IRTF Joint Campaign for NEO Reconnaissance. The IRTF is operated by the University of Hawaii under Cooperative Agreement no. NCC 5-538 with the National Aeronautics and Space Administration, Office of Space Science, Planetary Astronomy Program. The MIT component of this work is supported by NASA grant 09-NEOO009-0001, and by the National Science Foundation under grants nos 0506716 and 0907766.
Sources of information:
Directorio de Producción Científica
Scopus