R-mode Instability of Low-mass Bare Strange Stars

2016 ◽  
Vol 40 (2) ◽  
pp. 220-227
Author(s):  
Pi Chun-mei ◽  
Yang Shu-hua
Keyword(s):  
Mode Instability ◽  
Strange Stars ◽  
Low Mass

scholarly journals The r-mode instability windows of strange stars

2019 ◽  
Vol 19 (2) ◽  
pp. 030 ◽  
Author(s):  
Yu-Bin Wang ◽  
Xia Zhou ◽  
Na Wang ◽  
Xiong-Wei Liu
Keyword(s):  
Mode Instability ◽  
Strange Stars

scholarly journals R-modes in neutron stars: Theory and observations

2015 ◽  
Vol 24 (09) ◽  
pp. 1541007 ◽  
Author(s):  
B. Haskell
Keyword(s):  
Neutron Stars ◽  
Light Curves ◽  
Mutual Friction ◽  
Mode Instability ◽  
Flux Tubes ◽  
X Ray ◽  
Physical Mechanisms ◽  
Low Mass ◽  
Superfluid Vortices ◽  
X Ray Binaries

In this paper, I will review the theory behind the gravitational wave (GW) driven r-mode instability in rapidly rotating neutron stars (NSs) and discuss which constraints can be derived from observations of spins and temperatures in low mass X-ray binaries (LMXBs). I will discuss how a standard, 'minimal' NS model is not consistent with the data, and discuss some of the additional physical mechanisms that could reconcile theory with observations. In particular, I will focus on additional forms of damping due to exotic cores and on strong mutual friction due to superfluid vortices cutting through superconducting flux tubes, and examine the repercussions these effects could have on the saturation amplitude of the mode. Finally I will also discuss the possibility that oscillations due to r-modes may have been recently observed in the X-ray light curves of two LMXBs.

scholarly journals The effect of r-mode instability on the evolution of isolated strange stars

2006 ◽  
Vol 369 (1) ◽  
pp. 376-382 ◽  
Author(s):  
Xiao-Ping Zheng ◽  
Yun-Wei Yu ◽  
Jia-Rong Li
Keyword(s):  
Mode Instability ◽  
Strange Stars

scholarly journals R-mode instability of strange stars and observations of neutron stars in LMXBs

2015 ◽  
Vol 15 (6) ◽  
pp. 871-878 ◽  
Author(s):  
Chun-Mei Pi ◽  
Shu-Hua Yang ◽  
Xiao-Ping Zheng
Keyword(s):  
Neutron Stars ◽  
Mode Instability ◽  
Strange Stars

POSSIBLE SIGNATURES OF THE CONVERSION OF A NEUTRON STAR TO A STRANGE STAR

1994 ◽  
Vol 03 (03) ◽  
pp. 653-664
Author(s):  
O.G. BENVENUTO ◽  
M.I. KRIVORUCHENKO ◽  
B.V. MARTEMYANOV
Keyword(s):  
Neutron Star ◽  
Neutron Stars ◽  
High Recurrence Rate ◽  
Massive Quark ◽  
Pulsar Emission ◽  
Strange Stars ◽  
X Ray ◽  
Supernova Explosions ◽  
Low Mass ◽  
Step Mechanism

The problem of the identification of strange stars is discussed. We suggest some characteristic signatures for the search for strange stars: a two-step mechanism for supernova explosions accompanied by the occurrence of strange stars and two neutrino bursts; microstructure analysis in the profile of pulsar emission; and unusual stability in the rotation of millisecond pulsars due to the absence of internal crust in strange stars. The cooling of strange stars is faster than the cooling of ordinary neutron stars, so low surface temperature of pulsars can indicate the existence of massive quark cores in observed pulsars. Low mass strange stars as bursters and/or X-ray sources have peculiar observable features: low luminosity and (for bursters) high recurrence rate, large duration of bursts, low ratio of energy emitted between two bursts and energy emitted during the burst.

scholarly journals R-mode constraints from neutron star equation of state

2019 ◽  
Vol 23 ◽  
pp. 100
Author(s):  
Ch. C. Moustakidis ◽  
M. C. Papazoglou
Keyword(s):  
Neutron Star ◽  
Equation Of State ◽  
Neutron Stars ◽  
Gravitational Radiation ◽  
Mode Instability ◽  
X Ray ◽  
Long Time ◽  
Low Mass ◽  
X Ray Binaries

The gravitational radiation has been proposed a long time before, as an explana- tion for the observed relatively low spin frequencies of young neutron stars and of accreting neutron stars in low-mass X-ray binaries as well. In the present work we studied the effects of the neutron star equation of state on the r-mode instability window of rotating neutron stars.

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