Seismological comparison of giant planet interior models.

Details Seismological comparison of giant planet interior models. Seismological comparison of giant planet interior models.

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...303..594g&link_type=abstract

Astronomy and Astrophysics, v.303, p.594

Astronomy and Astrophysics

Astrophysics

11

Planets: General, Jupiter, Saturn, Equation Of State, Stars: Oscillations

Scientific paper

We investigate the possibility to characterize the differences between interior models of Jupiter and Saturn with the help of seismological criteria. For both planets we consider two groups of models: first, models based on different descriptions of the hydrogen equation of state (plasma phase transition (PPT) or interpolated EOS) and second, models with different descriptions of the energy transport mechanism (fully convective models and radiative-convective models). The acoustic modes eigenfrequency patterns of both planets are calculated for the different models for degrees up to 30 (Jupiter) or 15 (Saturn), and for frequencies up to the tropospheric cutoff frequency. The different treatments of the hydrogen pressure ionization lead to substantial differences in the oscillation frequencies, up to 120μHz for Jupiter and 40μHz for Saturn. These variations come partly from the fact that the location of the rock/ice core depends strongly on the equation of state in the fluid envelope. The differences between the oscillation frequencies corresponding respectively to fully and non fully adiabatic models vary from 0 to 80μHz for Jupiter and to 40μHz for Saturn. This stems from the fact that the location of the PPT in the planetary interior and the core size depend strongly on the characteristics of the models. The amplitudes of the calculated variations suggest that future seismological observations should provide stringent tests to discriminate between various planetary interior models. Jupiter or Saturn may in fact be used as natural high-pressure laboratories to characterize the very nature of hydrogen pressure-metallization.

Affiliated with

Also associated with

No associations

Rating

Seismological comparison of giant planet interior models. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Seismological comparison of giant planet interior models., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seismological comparison of giant planet interior models. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1177781