The slow rotation of 253 Mathilde

被引：46

作者：

Mottola, S

Sears, WD

Erikson, A

Harris, AW

Young, JW

Hahn, G

Dahlgren, M

Mueller, BEA

Owen, B

GilHutton, R

Licandro, J

Barucci, MA

Angeli, C

Neukum, G

Lagerkvist, CI

Lahulla, JF

机构：

[1] CALTECH,JET PROP LAB,PASADENA,CA 91109

[2] ASTRON OBSERV,S-75120 UPPSALA,SWEDEN

[3] NATL OPT ASTRON OBSERV,TUCSON,AZ 85719

[4] OBSERV PARIS,F-92195 MEUDON,FRANCE

[5] YALE SO OBS,RA-5407 MARQUESADO,SAN JUAN,ARGENTINA

[6] OBSERV ASTR FELIX AGUILAR,RA-5407 MARQUESADO,SAN JUAN,ARGENTINA

[7] FAC CIENCIAS,DEPT ASTRON,MONTEVIDEO 11200,URUGUAY

[8] OBSERV ASTRON ALFONSO XII,E-28014 MADRID,SPAIN

来源：

PLANETARY AND SPACE SCIENCE | 1995年 / 43卷 / 12期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

D O I：

10.1016/0032-0633(95)00127-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

CCD photometry of the NEAR mission fly-by target 253 Mathilde is presented. Measurements taken during 52 nights of observations, from February to June 1995, allow a rotation period of 17.406 +/- 0.010 days and a lightcurve amplitude of 0.45 +/- 0.02 mag to be determined. A B-V color index of 0.67 +/- 0.02 and V-R of 0.35 +/- 0.02 are measured, which are compatible with C-type membership. The determination of the phase relation results in H = 10.28 +/- 0.03 and G = 0.12 +/- 0.06. Indications that the lightcurve is not strictly singly-periodic are found. A power-spectrum analysis detects a secondary frequency f(2) = 0.0322 +/- 0.0010 d(-1), which is interpreted as evidence for a complex rotation state.

引用

页码：1609 / 1613

页数：5

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