Thermal observations of Centaur 1997 CU26

被引:52
作者
Jewitt, D
Kalas, P
机构
[1] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
[2] Max Planck Inst Astron, D-69117 Heidelberg, Germany
基金
美国国家航空航天局;
关键词
comets; general; infrared; solar system; minor planets; asteroids;
D O I
10.1086/311356
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We combine new measurements of the thermal emission from the Centaur 1997 CU26 with published optical photometry to determine the geometric albedo (0.045 +/- 0.010) and effective diameter (302 +/- 30 km). While these values are model dependent, they clearly show that 1997 CU26 is the largest of the known Centaurs and that its surface is very dark.
引用
收藏
页码:L103 / L106
页数:4
相关论文
共 27 条
  • [1] THE NUCLEUS OF COMET P/TEMPEL-2
    AHEARN, MF
    CAMPINS, H
    SCHLEICHER, DG
    MILLIS, RL
    [J]. ASTROPHYSICAL JOURNAL, 1989, 347 (02) : 1155 - 1166
  • [2] ALTENHOFF WJ, 1995, ASTRON ASTROPHYS, V293, pL41
  • [3] ORBITAL EVOLUTION OF THE LARGE OUTER SOLAR-SYSTEM OBJECT 5145-PHOLUS
    ASHER, DJ
    STEEL, DI
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1993, 263 (01) : 179 - 190
  • [4] BINZEL RP, 1997, 6568 IAU
  • [5] Bowell E., 1989, ASTEROIDS, VII, P524
  • [6] Stellar occultation by 2060 Chiron
    Bus, SJ
    Buie, MW
    Schleicher, DG
    Hubbard, WB
    Marcialis, RL
    Hill, R
    Wasserman, LH
    Spencer, JR
    Millis, RL
    Franz, OG
    Bosh, AS
    Dunham, EW
    Ford, CH
    Young, JW
    Elliot, JL
    Meserole, R
    Olkin, CB
    McDonald, SW
    Foust, JA
    Sopata, LM
    Bandyopadhyay, RM
    [J]. ICARUS, 1996, 123 (02) : 478 - 490
  • [7] THE BARE NUCLEUS OF COMET NEUJMIN-1
    CAMPINS, H
    AHEARN, MF
    MCFADDEN, LA
    [J]. ASTROPHYSICAL JOURNAL, 1987, 316 (02) : 847 - 857
  • [8] THE COLOR TEMPERATURE OF (2060)CHIRON - A WARM AND SMALL NUCLEUS
    CAMPINS, H
    TELESCO, CM
    OSIP, DJ
    RIEKE, GH
    RIEKE, MJ
    SCHULZ, B
    [J]. ASTRONOMICAL JOURNAL, 1994, 108 (06) : 2318 - 2322
  • [9] DAVIES J, 1998, IN PRESS ICARUS
  • [10] Davies J.R., 1993, 5698 IAU