Thermonuclear X-ray bursts from neutron star LMXBs - iucaa

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Various aspects of burstsASTROSAT(India’s proposed multiwavelengthastronomy space mission)In its time, only astrosatwill have the capability tostudy burst oscillations. Itwill also be the bestinstrument to studycontinuum burst spectra.
Importance of bursts(1) Measurement of neutron star parameters (and hence probingsupranuclear stellar core matter) from the spectral and timinganalyses of bursts.(2) The outer crust (~ 10 -4 solar mass) is entirely replaced in about 10 6years (the lifetime of these sources is about 10 9 years ). Therefore,the crust contains the ashes of bursts, and the crust temperaturedistribution might depend on bursts. Therefore, the crust (nuclear)physics of these neutron stars crucially depends on bursts.(3) The accretion of many of these sources occur in phases. Inbetween two such phases, the neutron star cools. The observationof such crust cooling could lead to constraints on neutrino cooling,and hence on the stellar interior structure. However, the crustcooling depends on the crust composition, which in turn dependson the bursts.
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Page 6: IntroductionLow-mass X-ray Binary (
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Thermonuclear X-ray bursts from neutron star LMXBs - iucaa

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