Water ice in 2060 Chiron and its implications for Centaurs and Kuiper Belt objects

被引：59

作者：

Luu, JX

Jewitt, DC

Trujillo, C

机构：

[1] Sterrewacht Leiden, NL-2300 RA Leiden, Netherlands

[2] Inst Astron, Honolulu, HI 96822 USA

来源：

ASTROPHYSICAL JOURNAL | 2000年 / 531卷 / 02期

关键词：

comets : general; Kuiper Belt objects; solar system : formation;

D O I：

10.1086/312536

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the detection of water ice in the Centaur 2060 Chiron, based on near-infrared spectra (1.0-2.5 mu m) taken with the 3.8 m United Kingdom Infrared Telescope and the 10 m Keck Telescope. The appearance of this ice is correlated with the recent decline in Chiron's cometary activity: the decrease in the coma cross section allows previously hidden solid-state surface features to be seen. We predict that water ice is ubiquitous among Centaurs and Kuiper Belt objects, but its surface coverage varies from object to object and thus determines its detectability and the occurrence of cometary activity.

引用

页码：L151 / L154

页数：4

共 32 条

[1]

[Anonymous], JCMT UKIRT NEWSLETTE

[2] Detection of water ice on the Centaur 1997 CU26 [J].

Brown, ME ;

Koresko, CD .

ASTROPHYSICAL JOURNAL, 1998, 505 (01) :L65-L67

[3] Water ice on Kuiper Belt object 1996 TO66 [J].

Brown, RH ;

Cruikshank, DP ;

Pendleton, Y .

ASTROPHYSICAL JOURNAL, 1999, 519 (01) :L101-L104

[4] Surface composition of Kuiper belt object 1993SC [J].

Brown, RH ;

Cruikshank, DP ;

Pendleton, Y ;

Veeder, GJ .

SCIENCE, 1997, 276 (5314) :937-939

[5] Stellar occultation by 2060 Chiron [J].

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 .

ICARUS, 1996, 123 (02) :478-490

[6] 2060-CHIRON - CCD AND ELECTRONOGRAPHIC PHOTOMETRY [J].

BUS, SJ ;

BOWELL, E ;

HARRIS, AW ;

HEWITT, AV .

ICARUS, 1989, 77 (02) :223-238

[7] THE COLOR TEMPERATURE OF (2060)CHIRON - A WARM AND SMALL NUCLEUS [J].

CAMPINS, H ;

TELESCO, CM ;

OSIP, DJ ;

RIEKE, GH ;

RIEKE, MJ ;

SCHULZ, B .

ASTRONOMICAL JOURNAL, 1994, 108 (06) :2318-2322

[8] THE SPECTRAL REFLECTANCE OF WATER-MINERAL MIXTURES AT LOW-TEMPERATURES [J].

CLARK, RN .

JOURNAL OF GEOPHYSICAL RESEARCH, 1981, 86 (NB4) :3074-3086

[9] SPECTRAL PROPERTIES OF ICE-PARTICULATE MIXTURES AND IMPLICATIONS FOR REMOTE-SENSING .1. INTIMATE MIXTURES [J].

CLARK, RN ;

LUCEY, PG .

JOURNAL OF GEOPHYSICAL RESEARCH, 1984, 89 (NB7) :6341-6348

[10] The composition of Centaur 5145 Pholus [J].

Cruikshank, DP ;

Roush, TL ;

Bartholomew, MJ ;

Geballe, TR ;

Pendleton, YJ ;

White, SM ;

Bell, JF ;

Davies, JK ;

Owen, TC ;

de Bergh, C ;

Tholen, DJ ;

Bernstein, MP ;

Brown, RH ;

Tryka, KA ;

Dalle Ore, CM .

ICARUS, 1998, 135 (02) :389-407

← 1 2 3 4 →