2012A&A...539A.115G


Query : 2012A&A...539A.115G

2012A&A...539A.115G - Astronomy and Astrophysics, volume 539A, 115-115 (2012/3-1)

Polarimetric survey of main-belt asteroids. II. Results for 58 B- and C-type objects.

GIL-HUTTON R. and CANADA-ASSANDRI M.

Abstract (from CDS):

We present results of a polarimetric survey of main-belt asteroids at Complejo Astronomico el Leoncito (CASLEO), San Juan, Argentina. The aims of this survey are to increase the database of asteroid polarimetry, to estimate diversity in polarimetric properties of asteroids that belong to different taxonomic classes, and to search for objects that exhibit anomalous polarimetric properties. The data were obtained with the Torino and CASPROF polarimeters at the 2.15m telescope. The Torino polarimeter is an instrument that allows simultaneous measurement of polarization in five different bands, and the CASPROF polarimeter is a two-hole aperture polarimeter with rapid modulation. The survey began in 2003, and up to 2009 data on a sample of more than 170 asteroids were obtained. In this paper the results for 58 B- and C-type objects are presented, most of them polarimetrically observed for the first time. Using these data we find phase-polarization curves and polarimetric parameters for these taxonomic classes.

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Journal keyword(s): minor planets, asteroids: general - techniques: polarimetric

VizieR on-line data: <Available at CDS (J/A+A/539/A115): objects.dat table1.dat table2.dat>

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2023.02.01-19:55:43

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