New isothermal equation of state of solids applied to high pressures

Pramana ◽  
2003 ◽  
Vol 61 (4) ◽  
pp. 753-757 ◽  
Author(s):  
Piyush Kuchhal ◽  
Narsingh Dass
Keyword(s):  
Equation Of State ◽  
High Pressures ◽  
Isothermal Equation

An isothermal equation of state for solids

2004 ◽  
Vol 350 (4) ◽  
pp. 375-388 ◽  
Author(s):  
Papiya Bose Roy ◽  
Sushil Bose Roy
Keyword(s):  
Equation Of State ◽  
Isothermal Equation

An improved equation of state for inert gases at high pressures

1980 ◽  
Vol 95 (3) ◽  
pp. 239-252 ◽  
Author(s):  
I.R. Brearley ◽  
D.A. MacInnes
Keyword(s):  
Equation Of State ◽  
High Pressures ◽  
Inert Gases

Equation of state and thermal conductivity of gases at high pressures and elevated temperatures

1956 ◽  
Vol 22 ◽  
pp. 64 ◽  
Author(s):  
J. Saurel ◽  
R. Bergeon ◽  
P. Johannin ◽  
J. Dapoigny ◽  
J. Kieffer ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Equation Of State ◽  
High Pressures ◽  
Elevated Temperatures

Equation of State of Gases at High Pressures and Low or Moderate Temperatures

1968 ◽  
pp. 347-381
Author(s):  
J. Brielles ◽  
A. Dédit ◽  
M. Lallemand ◽  
B. Le Neindre ◽  
Y. Leroux ◽  
...  
Keyword(s):  
Equation Of State ◽  
High Pressures

scholarly journals Importance of radiative effects in gap opening by planets in protoplanetary disks

2020 ◽  
Vol 637 ◽  
pp. A50 ◽  
Author(s):  
Alexandros Ziampras ◽  
Wilhelm Kley ◽  
Cornelis P. Dullemond
Keyword(s):  
Equation Of State ◽  
Energy Equation ◽  
Protoplanetary Disks ◽  
Class Ii ◽  
Radiative Effects ◽  
Gap Opening ◽  
Isothermal Equation ◽  
Spiral Arm

Recent ALMA observations revealed concentric annular structures in several young class-II objects. In an attempt to produce the rings and gaps in some of these systems, they have been modeled numerically with a single embedded planet assuming a locally isothermal equation of state. This is often justified by observations targeting the irradiation-dominated outer regions of disks (approximately 100 au). We test this assumption by conducting hydrodynamics simulations of embedded planets in thin locally isothermal and radiative disks that mimic the systems HD 163296 and AS 209 in order to examine the effect of including the energy equation in a seemingly locally isothermal environment as far as planet–disk interaction is concerned. We find that modeling such disks with an ideal equation of state makes a difference in terms of the number of produced rings and the spiral arm contrast in the disk. Locally isothermal disks produce sharper annular or azimuthal features and overestimate a single planet’s gap-opening capabilities by producing multiple gaps. In contrast, planets in radiative disks carve a single gap for typical disk parameters. Consequently, for accurate modeling of planets with semimajor axes up to about 100 au, radiative effects should be taken into account even in seemingly locally isothermal disks. In addition, for the case of AS 209, we find that the primary gap is significantly different between locally isothermal and radiative models. Our results suggest that multiple planets are required to explain the ring-rich structures in such systems.

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