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Title: Dragging of inertial frames inside the rotating neutron stars

Abstract

We derive the exact frame-dragging rate inside rotating neutron stars. This formula is applied to show that the frame-dragging rate monotonically decreases from the center to the surface of the neutron star along the pole. In the case of the frame-dragging rate along the equatorial distance, it decreases initially away from the center, becomes negligibly small well before the surface of the neutron star, rises again, and finally approaches to a small value at the surface. The appearance of a local maximum and minimum in this case is the result of the dependence of frame-dragging frequency on the distance and angle. Moving from the equator to the pole, it is observed that this local maximum and minimum in the frame-dragging rate along the equator disappear after crossing a critical angle. It is also noted that the positions of the local maximum and minimum of the frame-dragging rate along the equator depend on the rotation frequency and central energy density of a particular pulsar.

Authors:
; ;  [1]
  1. Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, Kolkata 700064 (India)
Publication Date:
OSTI Identifier:
22365631
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 790; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; DISTANCE; ENERGY DENSITY; EQUATIONS OF STATE; EQUATOR; NEUTRON STARS; PULSARS; RELATIVISTIC RANGE; ROTATION; SURFACES

Citation Formats

Chakraborty, Chandrachur, Modak, Kamakshya Prasad, and Bandyopadhyay, Debades, E-mail: chandrachur.chakraborty@saha.ac.in, E-mail: kamakshya.modak@saha.ac.in. Dragging of inertial frames inside the rotating neutron stars. United States: N. p., 2014. Web. doi:10.1088/0004-637X/790/1/2.
Chakraborty, Chandrachur, Modak, Kamakshya Prasad, & Bandyopadhyay, Debades, E-mail: chandrachur.chakraborty@saha.ac.in, E-mail: kamakshya.modak@saha.ac.in. Dragging of inertial frames inside the rotating neutron stars. United States. doi:10.1088/0004-637X/790/1/2.
Chakraborty, Chandrachur, Modak, Kamakshya Prasad, and Bandyopadhyay, Debades, E-mail: chandrachur.chakraborty@saha.ac.in, E-mail: kamakshya.modak@saha.ac.in. 2014. "Dragging of inertial frames inside the rotating neutron stars". United States. doi:10.1088/0004-637X/790/1/2.
@article{osti_22365631,
title = {Dragging of inertial frames inside the rotating neutron stars},
author = {Chakraborty, Chandrachur and Modak, Kamakshya Prasad and Bandyopadhyay, Debades, E-mail: chandrachur.chakraborty@saha.ac.in, E-mail: kamakshya.modak@saha.ac.in},
abstractNote = {We derive the exact frame-dragging rate inside rotating neutron stars. This formula is applied to show that the frame-dragging rate monotonically decreases from the center to the surface of the neutron star along the pole. In the case of the frame-dragging rate along the equatorial distance, it decreases initially away from the center, becomes negligibly small well before the surface of the neutron star, rises again, and finally approaches to a small value at the surface. The appearance of a local maximum and minimum in this case is the result of the dependence of frame-dragging frequency on the distance and angle. Moving from the equator to the pole, it is observed that this local maximum and minimum in the frame-dragging rate along the equator disappear after crossing a critical angle. It is also noted that the positions of the local maximum and minimum of the frame-dragging rate along the equator depend on the rotation frequency and central energy density of a particular pulsar.},
doi = {10.1088/0004-637X/790/1/2},
journal = {Astrophysical Journal},
number = 1,
volume = 790,
place = {United States},
year = 2014,
month = 7
}
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