Testing adiabatic expansion of polytropic universe model with SNe Ia data

2020 ◽  
Vol 95 (6) ◽  
pp. 065005
Author(s):  
Emre Dil ◽  
Ahmet Mecit Oztas ◽  
Elif Dil
Keyword(s):  
Universe Model ◽  
Adiabatic Expansion

The Astrophysicalr‐Process: A Comparison of Calculations following Adiabatic Expansion with Classical Calculations Based on Neutron Densities and Temperatures

1999 ◽  
Vol 516 (1) ◽  
pp. 381-398 ◽  
Author(s):  
C. Freiburghaus ◽  
J.‐F. Rembges ◽  
T. Rauscher ◽  
E. Kolbe ◽  
F.‐K. Thielemann ◽  
...  
Keyword(s):  
Adiabatic Expansion

scholarly journals Shock Compressibility, Adiabatic Expansion and Equation of State of Stylbene.

1998 ◽  
Vol 7 ◽  
pp. 838-840
Author(s):  
M. V. Zhernokletov ◽  
K. V. Khishchenko ◽  
I. V. Lomonosov ◽  
Yu. N. Sutulov
Keyword(s):  
Equation Of State ◽  
Adiabatic Expansion ◽  
Shock Compressibility

Energy–momentum distributions of Ruban universe in general relativity and teleparallel gravity

2019 ◽  
Vol 34 (03n04) ◽  
pp. 1950011 ◽  
Author(s):  
C. Aktaş
Keyword(s):  
General Relativity ◽  
Bianchi Type ◽  
Teleparallel Gravity ◽  
Type I ◽  
Universe Model ◽  
Zero Energy ◽  
Bianchi Type I ◽  
Momentum Distributions ◽  
Bianchi Type I Universe

In this study, we obtain Einstein, Bergmann–Thomson (BT), Landau–Lifshitz (LL), Møller, Papapetrou (PP) and Tolman energy–momentum (EM) distributions for Ruban universe model in general relativity (GR) and teleparallel gravity (TG). We obtain same results for Einstein, Bergmann–Thomson and Landau–Lifshitz energy–momentum distributions in GR and TG. Also, we get same results for Einstein and Tolman energy–momentum distributions in GR. The Møller energy–momentum results are different in GR and TG. Also, using Ruban universe model, we obtain LRS Bianchi type I solutions and we get zero energy–momentum results for this universe model in GR and TG. These results of LRS Bianchi type I universe model agree with Aygün et al., Taşer et al., Doğru et al., Banerjee–Sen, Tryon and Xulu in different gravitation theories.

scholarly journals Expanding Shell around a Void and Universe Model

1993 ◽  
Vol 89 (6) ◽  
pp. 1193-1201 ◽  
Author(s):  
N. Sakai ◽  
K.-i. Maeda ◽  
H. Sato
Keyword(s):  
Universe Model

MOLECULAR DYNAMICS SIMULATION OF PULSED LASER ABLATION

2011 ◽  
Vol 25 (04) ◽  
pp. 543-550 ◽  
Author(s):  
XIU-FANG GONG ◽  
GONG-XIAN YANG ◽  
PENG LI ◽  
YIN WANG ◽  
XI-JING NING
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Pulses ◽  
Solid Surfaces ◽  
Dynamics Simulation ◽  
Angular Distributions ◽  
Adiabatic Expansion ◽  
Expansion Model

We have developed a simplified molecular-dynamical model for simulating ablation of solid surfaces by laser pulses, and specifically investigated expansion of Cu cloud in vacuum vaporized on the surface, showing that the angular distributions of the plume depend on the shape of the laser spot on the surface. In particular, experimentally observed flipover effects have been obtained, and an adiabatic constant determined from our simulations via an adiabatic expansion model agrees well with previous measurements.

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