Dark matter heating in strange stars

We study the effect of dark matter heating on the temperature of typical strange star（SS hereafter）（M=1.4 M⊙,R=10 km）in normal phase（NSS hereafter）and in a possible existing colour-flavour locked（CFL）phase（CSS hereafter）.For NSS,the influence of dark matter heating is ignored until roughly 10^7yr.Af...

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Bibliographic Details
Published inScience China. Physics, mechanics & astronomy Vol. 57; no. 4; pp. 791 - 795
Main Authors Huang, Xi, Wang, Wen, Zheng, XiaoPing
Format Journal Article
LanguageEnglish
Published Heidelberg Science China Press 01.04.2014
Springer Nature B.V
Subjects
Astronomy
Classical and Continuum Physics
Cooling
CSS
Dark matter
Emissivity
Flavors
Heating
Observations and Techniques
Physics
Physics and Astronomy
Surface temperature
冷却模型
加热
奇异星
暗物质
温度上升
表面温度
高中
stellar evolution
dark matter
quarks
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Summary:We study the effect of dark matter heating on the temperature of typical strange star（SS hereafter）（M=1.4 M⊙,R=10 km）in normal phase（NSS hereafter）and in a possible existing colour-flavour locked（CFL）phase（CSS hereafter）.For NSS,the influence of dark matter heating is ignored until roughly 10^7yr.After 10^7yr,the dark matter heating is dominant that significantly delays the star cooling,which maintains a temperature much higher than that predicted by standard cooling model for old stars.Especially for CSS,the emissivity of dark matter will play a leading role after roughly 10^4yr,which causes the temperature to rise.This leads to the plateau of surface temperature appearing in～10^6.5yr which is earlier than that of NSS（～10^7yr）.
Bibliography:11-5000/N
HUANG Xi, WANG Wen, ZHENG XiaoPing（ 1Institute of Astrophysics, Central China Normal University, Wuhan 430079, China; 2School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan 430073, China）
We study the effect of dark matter heating on the temperature of typical strange star（SS hereafter）（M=1.4 M⊙,R=10 km）in normal phase（NSS hereafter）and in a possible existing colour-flavour locked（CFL）phase（CSS hereafter）.For NSS,the influence of dark matter heating is ignored until roughly 10^7yr.After 10^7yr,the dark matter heating is dominant that significantly delays the star cooling,which maintains a temperature much higher than that predicted by standard cooling model for old stars.Especially for CSS,the emissivity of dark matter will play a leading role after roughly 10^4yr,which causes the temperature to rise.This leads to the plateau of surface temperature appearing in～10^6.5yr which is earlier than that of NSS（～10^7yr）.
stellar evolution; dark matter; quarks
ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-014-5393-5