Visible and near-infrared spectroscopy of the Centaur 32532 (2001 PT13) -: ESO large program on TNOs and Centaurs:: First spectroscopy results

被引：45

作者：

Barucci, MA ^{[1
]}

Boehnhardt, H

Dotto, E

Doressoundiram, A

Romon, J

Lazzarin, M

Fornasier, S

de Bergh, C

Tozzi, GP

Delsanti, A

Hainaut, O

Barrera, L

Birkle, K

Meech, K

Ortiz, JL

Sekiguchi, T

Thomas, N

Watanabe, J

West, RM

Davies, JK

机构：

[1] Observ Paris, LESIA, F-92195 Meudon, France

[2] European So Observ, Santiago, Chile

[3] Osserv Astron Torino, INAF, I-10025 Pino Torinese, Italy

[4] Osserv Astron Torino, INAF, I-00040 Monte Porzio Catone, Italy

[5] Dipartimento Astron, I-35122 Padua, Italy

[6] Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy

[7] Univ Catolica Norte, Inst Astron, Antofagasta, Chile

[8] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[9] Univ Hawaii, IFA, Honolulu, HI 96822 USA

[10] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain

[11] Natl Astron Observ, Tokyo 181, Japan

[12] Max Planck Inst Aeron, D-37189 Katlenburg Lindau, Germany

[13] European So Observ, D-85748 Garching, Germany

[14] Astron Technol Ctr, Edinburgh EH9 3HJ, Midlothian, Scotland

来源：

ASTRONOMY & ASTROPHYSICS | 2002年 / 392卷 / 01期

关键词：

Centaur; 32532 (2001 PT13); visible; near-infrared; spectroscopy; photometry;

D O I：

10.1051/0004-6361:20021186

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present photometric and spectroscopic data obtained through visible and near-infrared observations of the Centaur 32532 (2001 PT13) performed with FORS1 and ISAAC at the Very Large Telescope (VLT-ESO) within the framework of an ESO large program on the Trans-Neptunian objects (TNOs) and Centaurs. The results show evidence for a difference in the near-infrared spectral behaviour obtained during two observations carried out one month apart. In one spectrum there is the possible presence of signatures of water ice in small amounts. Two models have been proposed to interpret the surface composition of this Centaur.

引用

页码：335 / 339

页数：5

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