WATER VAPORIZATION ON CERES

被引：92
作者：
AHEARN, MF [1 ]
FELDMAN, PD [1 ]
机构：
[1] JOHNS HOPKINS UNIV,DEPT PHYS & ASTRON,BALTIMORE,MD 21218
来源：
ICARUS | 1992年 / 98卷 / 01期
基金：
美国国家航空航天局;
关键词：
D O I：
10.1016/0019-1035(92)90206-M
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present long-exposure IUE spectra of the region around Ceres in which one might find escaping OH resulting from the photodissociation of atmospheric water vapor. An exposure off the southern limb of Ceres before perihelion shows no evidence for OH emission. An exposure off the northern limb of Ceres after perihelion shows a statistically significant detection of OH. The amount of OH is consistent with, among many possibilities, a polar cap which is replenished during winter by subsurface percolation as discussed by Fanale and Salvail (1989, Icarus 82, 97-110) and which dissipates in summer. © 1992.
引用
收藏
页码：54 / 60
页数：7
相关论文
共 11 条
  • [1] THE WATER REGIME OF ASTEROID (1) CERES
    FANALE, FP
    SALVAIL, JR
    [J]. ICARUS, 1989, 82 (01) : 97 - 110
  • [2] FELDMAN PD, 1982, COMETS, P461
  • [3] NO COMETESIMALS IN THE INNER SOLAR-SYSTEM
    HALL, DT
    SHEMANSKY, DE
    [J]. NATURE, 1988, 335 (6189) : 417 - 419
  • [4] ON A HOT OXYGEN CORONA OF MARS
    IP, WH
    [J]. ICARUS, 1988, 76 (01) : 135 - 145
  • [5] EVIDENCE FOR AMMONIUM-BEARING MINERALS ON CERES
    KING, TVV
    CLARK, RN
    CALVIN, WM
    SHERMAN, DM
    BROWN, RH
    [J]. SCIENCE, 1992, 255 (5051) : 1551 - 1553
  • [6] 2.7-MU-M TO 4.1-MU-M SPECTROPHOTOMETRY OF ICY SATELLITES OF SATURN AND JUPITER
    LEBOFSKY, LA
    FEIERBERG, MA
    [J]. ICARUS, 1985, 63 (02) : 237 - 242
  • [7] THE 1.7- TO 4.2-MU-M SPECTRUM OF ASTEROID 1 CERES - EVIDENCE FOR STRUCTURAL WATER IN CLAY-MINERALS
    LEBOFSKY, LA
    FEIERBERG, MA
    TOKUNAGA, AT
    LARSON, HP
    JOHNSON, JR
    [J]. ICARUS, 1981, 48 (03) : 453 - 459
  • [8] THE SIZE, SHAPE, DENSITY, AND ALBEDO OF CERES FROM ITS OCULATION OF BD+8-DEGREES-471
    MILLIS, RL
    WASSERMAN, LH
    FRANZ, OG
    NYE, RA
    OLIVER, RC
    KREIDL, TJ
    JONES, SE
    HUBBARD, W
    LEBOFSKY, L
    GOFF, R
    MARCIALIS, R
    SYKES, M
    FRECKER, J
    HUNTEN, D
    ZELLNER, B
    REITSEMA, H
    SCHNEIDER, G
    DUNHAM, E
    KLAVETTER, J
    MEECH, K
    OSWALT, T
    RAFERT, J
    STROTHER, E
    SMITH, J
    POVENMIRE, H
    JONES, B
    KORNBLUH, D
    REED, L
    IZOR, K
    AHEARN, MF
    SCHNURR, R
    OSBORN, W
    PARKER, D
    DOUGLAS, WT
    BEISH, JD
    KLEMOLA, AR
    RIOS, M
    SANCHEZ, A
    PIIRONEN, J
    MOONEY, M
    IRELAND, RS
    LEIBOW, D
    [J]. ICARUS, 1987, 72 (03) : 507 - 518
  • [9] NEAR-INFRARED SPECTRA OF THE GALILEAN SATELLITES - OBSERVATIONS AND COMPOSITIONAL IMPLICATIONS
    POLLACK, JB
    WITTEBORN, FC
    ERICKSON, EF
    STRECKER, DW
    BALDWIN, BJ
    BUNCH, TE
    [J]. ICARUS, 1978, 36 (03) : 271 - 303
  • [10] 2-4-MU-M SPECTRUM OF SATURNS RINGS
    PUETTER, RC
    RUSSELL, RW
    [J]. ICARUS, 1977, 32 (01) : 37 - 40
12