Size determination of the Centaur Chariklo from millimeter-wavelength bolometer observations

被引：21

作者：

Altenhoff, WJ ^{[1
]}

Menten, KM ^{[1
]}

Bertoldi, F ^{[1
]}

机构：

[1] Max Planck Inst Radioastron, D-53121 Bonn, Germany

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 366卷 / 02期

关键词：

comets : general; minor planets; asteroids; radio continuum : solar system;

D O I：

10.1051/0004-6361:20000543

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the Max-Planck Millimeter Bolometer Array (MAMBO) at the IRAM 30 m telescope we detected emission at 250 GHz from the Centaur Chariklo (1997 CU26). The observed continuum flux density implies a photometric diameter. of 273 km. The resulting geometric albedo is 0.055, somewhat higher than expected from a comparison with mast of the other few Centaurs and cometary nuclei for which such data are available.

引用

页码：L9 / L12

页数：4

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