Is Sedna another Triton?

被引：57

作者：

Barucci, MA ^{[1
]}

Cruikshank, DP

Dotto, E

Merlin, F

Poulet, F

Ore, CD

Fornasier, S

de Bergh, C

机构：

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

[2] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[3] Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy

[4] Univ Paris 11, IAS, F-91405 Orsay, France

[5] SETI Inst, Mountain View, CA USA

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

来源：

ASTRONOMY & ASTROPHYSICS | 2005年 / 439卷 / 02期

关键词：

TNOs; visible; infrared; spectroscopy; photometry;

D O I：

10.1051/0004-6361:200500144

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

90377 Sedna is, so far, the largest and most distant trans-neptunian object. It was observed at visible and near-infrared wavelengths using simultaneously two 8.2 m telescopes at the Very Large Telescope of the European Southern Observatory. The spectrum of Sedna suggests the presence on its surface of different ices ( total abundance > 50%). Its surface composition is different from that determined for other trans-neptunian objects, and apparently resembles that of Triton, particularly in terms of the possible presence of nitrogen and methane ices.

引用

页码：L1 / L4

页数：4

共 23 条

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

Barucci, MA ;

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 .

ASTRONOMY & ASTROPHYSICS, 2002, 392 (01) :335-339

[2]

BARUCCI MA, 2004, COMETS, V647

[3]

BARUCCI MA, 2005, IN PRESS AJ, V130

[4] Large-scale correlations in the Lyα forest at z=3-4 [J].

Becker, GD ;

Sargent, WLW ;

Rauch, M .

ASTROPHYSICAL JOURNAL, 2004, 613 (01) :61-76

[5]

BROWN GN, 1979, ADV CRYOGEN ENG, V25, P662

[6] Discovery of a candidate inner Oort Cloud planetoid [J].

Brown, ME ;

Trujillo, C ;

Rabinowitz, D .

ASTROPHYSICAL JOURNAL, 2004, 617 (01) :645-649

[7] ICES ON THE SURFACE OF TRITON [J].

CRUIKSHANK, DP ;

ROUSH, TL ;

OWEN, TC ;

GEBALLE, TR ;

DEBERGH, C ;

SCHMITT, B ;

BROWN, RH ;

BARTHOLOMEW, MJ .

SCIENCE, 1993, 261 (5122) :742-745

[8] Spectral models of Kuiper Belt objects and Centaurs [J].

Cruikshank, DP ;

Ore, CMD .

EARTH MOON AND PLANETS, 2003, 92 (1-4) :315-330

[9] Water ice on Triton [J].

Cruikshank, DP ;

Schmitt, B ;

Roush, TL ;

Owen, TC ;

Quirico, E ;

Geballe, TR ;

de Bergh, C ;

Bartholomew, MJ ;

Ore, CMD ;

Douté, S ;

Meier, R .

ICARUS, 2000, 147 (01) :309-316

[10] Water ice on the surface of the large TNO 2004 DW [J].

Fornasier, S ;

Dotto, E ;

Barucci, MA ;

Barbieri, C .

ASTRONOMY & ASTROPHYSICS, 2004, 422 (02) :L43-L46

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