AB-INITIO CALCULATION OF THE SOUND-VELOCITY OF DENSE HYDROGEN - IMPLICATIONS FOR MODELS OF JUPITER

被引：44

作者：

ALAVI, A

PARRINELLO, M

FRENKEL, D

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH, D-70569 STUTTGART, GERMANY

[2] FOM, INST ATOM & MOLEC PHYS, 1098 SJ AMSTERDAM, NETHERLANDS

来源：

SCIENCE | 1995年 / 269卷 / 5228期

关键词：

D O I：

10.1126/science.7652571

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

First-priniciples molecular dynamics simulations were used to calculate the sound velocity of dense hydrogen, and the results were compared with extrapolations of experimental data that currently conflict with either astrophysical models or data obtained from recent global oscillation measurements of Jupiter. Excellent agreement with the extrapolated experimental data was obtained. These results strongly support the notion that the existing models for the jovian interior need to be revised.

引用

页码：1252 / 1254

页数：3

共 18 条

[1] ALVAI A, 1994, PHYS REV LETT, V73, P2599
[2] ANSEN JP, 1986, THEORY SIMPLE LIQUID
[3] THEORY OF HIGH-PRESSURE PHASES OF HYDROGEN
BARBEE, TW
GARCIA, A
COHEN, ML
MARTINS, JL
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (10) : 1150 - 1153
[4] UNIFIED APPROACH FOR MOLECULAR-DYNAMICS AND DENSITY-FUNCTIONAL THEORY
CAR, R
PARRINELLO, M
[J]. PHYSICAL REVIEW LETTERS, 1985, 55 (22) : 2471 - 2474
[5] GROUND-STATE OF THE ELECTRON-GAS BY A STOCHASTIC METHOD
CEPERLEY, DM
ALDER, BJ
[J]. PHYSICAL REVIEW LETTERS, 1980, 45 (07) : 566 - 569
[6] GROUND-STATE OF SOLID HYDROGEN AT HIGH-PRESSURES
CEPERLEY, DM
ALDER, BJ
[J]. PHYSICAL REVIEW B, 1987, 36 (04): : 2092 - 2106
[7] THE MOLECULAR-METALLIC TRANSITION OF HYDROGEN AND THE STRUCTURE OF JUPITER AND SATURN
CHABRIER, G
SAUMON, D
HUBBARD, WB
LUNINE, JI
[J]. ASTROPHYSICAL JOURNAL, 1992, 391 (02) : 817 - 826
[8] SOUND VELOCITIES IN DENSE HYDROGEN AND THE INTERIOR OF JUPITER
DUFFY, TS
VOS, WL
ZHA, CS
HEMLEY, RJ
MAO, HK
[J]. SCIENCE, 1994, 263 (5153) : 1590 - 1593
[9] ELECTRONIC-STRUCTURE CALCULATIONS IN ADAPTIVE COORDINATES
GYGI, F
[J]. PHYSICAL REVIEW B, 1993, 48 (16): : 11692 - 11700
[10] EQUATION OF STATE OF SOLID HYDROGEN AND DEUTERIUM FROM SINGLE-CRYSTAL X-RAY-DIFFRACTION TO 26.5 GPA
HEMLEY, RJ
MAO, HK
FINGER, LW
JEPHCOAT, AP
HAZEN, RM
ZHA, CS
[J]. PHYSICAL REVIEW B, 1990, 42 (10): : 6458 - 6470

← 1 2 →