A simplified method for calculating the internal structure of neutron stars

1969 ◽  
Vol 27 (1-4) ◽  
pp. 289-298
Author(s):  
D. Kisdi
Keyword(s):  
Neutron Stars ◽  
Internal Structure ◽  
Simplified Method

scholarly journals Neutron stars as probes of dark matter

2020 ◽  
Vol 29 (14) ◽  
pp. 2043028
Author(s):  
M. Ángeles Pérez-García ◽  
Joseph Silk
Keyword(s):  
General Relativity ◽  
Dark Matter ◽  
Equation Of State ◽  
Neutron Stars ◽  
Internal Structure ◽  
Stellar Objects ◽  
Ordinary Matter ◽  
Stable Solutions ◽  
The Universe

Neutron Stars (NSs) are compact stellar objects that are stable solutions in General Relativity. Their internal structure is usually described using an equation of state that involves the presence of ordinary matter and its interactions. However there is now a large consensus that an elusive sector of matter in the universe, described as dark matter, remains as yet undiscovered. In such a case, NSs should contain both, baryonic and dark matter. We argue that depending on the nature of the dark matter and in certain circumstances, the two matter components would form a mixture inside NSs that could trigger further changes, some of them observable. The very existence of NSs constrains the nature and interactions of dark matter in the universe.

Internal structure of neutron stars

1972 ◽  
Vol 191 (2) ◽  
pp. 257-282 ◽  
Author(s):  
Jouko Arponen
Keyword(s):  
Neutron Stars ◽  
Internal Structure

Polytropic Internal Structure of Neutron Stars and Pulsar Glitches

2014 ◽  
Vol 64 (4) ◽  
pp. 472-482
Author(s):  
Myungkuk KIM* ◽  
Chang-Hwan LEE
Keyword(s):  
Neutron Stars ◽  
Internal Structure

scholarly journals Relativistic Processes and the Internal Structure of Neutron Stars

2011 ◽  
Author(s):  
D. E. Alvarez-Castillo ◽  
S. Kubis ◽  
Luis Arturo Ureña-López ◽  
Hugo Aurelio Morales-Técotl ◽  
Román Linares-Romero ◽  
...  
Keyword(s):  
Neutron Stars ◽  
Internal Structure ◽  
Relativistic Processes

A FUZZY BAG MODEL FOR BARYON-DIBARYON PHASE TRANSITION IN NEUTRON STARS

2011 ◽  
Vol 20 (supp02) ◽  
pp. 152-159
Author(s):  
ALBERTO S. S. ROCHA ◽  
CÉSAR A. Z. VASCONCELLOS ◽  
HELIO T. COELHO
Keyword(s):  
Phase Transition ◽  
Equation Of State ◽  
Neutron Stars ◽  
Internal Structure ◽  
External Medium ◽  
Nuclear Model ◽  
Maximum Mass ◽  
Bag Model ◽  
Abrupt Transition ◽  
Self Energy

We propose a model for dibaryon stars which takes into account the internal structure of nucleons via a fuzzy bag model. This choice of nuclear model avoids nucleon self-energy divergences as in the MIT model, and also considers a softer bag surface, thus eliminating the disadvantage of an abrupt transition between the interior of the bag and the external medium. We obtain results for the equation of state and for the mass-radius relation for the dibaryon star. Our results indicate a smaller maximum mass for dibaryon stars as compared to neutron stars, mainly due to the relaxation of the interior Fermi pressure in the dibaryon-populated star core.

Mastering Mandarin Endocentric Phrases: A Five-Step Technique

2019 ◽  
Vol 3 (1) ◽  
pp. 19
Author(s):  
Mok Soon Sim ◽  
S. Suchithra A/P K. Sankaran ◽  
Lau Suk Khin
Keyword(s):  
Internal Structure ◽  
Native Speakers ◽  
Mother Tongue ◽  
Teaching Approach ◽  
Innovative Teaching ◽  
Simplified Method ◽  
Demonstrative Pronouns ◽  
Measure Word

Mandarin Endocentric Phrases (MEP) is a type of Mandarin phrase which is classified according to its internal structure. It is formed by two components which share a [modifier-head word] relationship. The modifier component precedes the head word it modifies. The role of the modifier is to describe or limit the head word. The Five-Step Technique is a simplified method of arranging words to form MEP. It helps non-native speakers to master the process of sequencing MEP. This technique is informed by findings from research on error analy-sis in the use of MEP among Malay students in Universiti Teknologi MARA (UiTM) Shah Alam campus in 2019. UiTM Malay students are influenced by their mother tongue which is the Malay language when they learn the MEP, thus they often make mistakes in the construction and translation of MEP. This Five-Step technique delineates the cor-rect sequence of MEP into five parts, starting from the demonstrative pronouns, followed by the measure word, modifier or adjective, parti-cle “de” and finally the noun or object. This technique will enable stu-dents to produce error-free MEPs and instinctively build their motiva-tion to master the language. Ideally, Mandarin teachers can use this innovative teaching approach to create an interactive and collabora-tive learning partnership in the Mandarin classroom.

The art of precision pulsar timing

2009 ◽  
Vol 5 (S261) ◽  
pp. 212-217 ◽  
Author(s):  
Matthew Bailes
Keyword(s):  
Magnetic Field ◽  
General Relativity ◽  
Neutron Stars ◽  
Internal Structure ◽  
Millisecond Pulsar ◽  
Proper Motions ◽  
Tests Of General Relativity ◽  
Timing Precision ◽  
Pulsar Timing ◽  
Field Strengths

AbstractPulsar timing has proven to be a wonderful tool with which to study neutron stars, providing insights into their ages, distances, proper motions, magnetic field strengths, internal structure, binary histories and evolution, and for tests of General Relativity. Here I describe how to optimise strategies for millisecond pulsar timing to enable the highest timing precision.

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