Neutron star temperature and cooling

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SUMMARY

The discussion centers on the temperature and cooling processes of neutron stars, particularly referencing the theories and observational evidence surrounding these phenomena. Key articles cited include "Rapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superfluidity in Dense Matter" by D. Page et al. (Phys. Rev. Lett 106, 2011) and "Cooling neutron star in the Cassiopeia A supernova remnant" by Peter S. Shternin et al. (Mon. Not. R. Astron. Soc. 2010). The conversation highlights the relationship between neutron star cooling and gravitational radiation, emphasizing the importance of pulsar timing in observing rotational energy decay, which supports Einstein's theory of general relativity.

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  • Understanding of neutron star physics
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  • Knowledge of pulsar timing and observational astrophysics
  • Basic concepts of superfluidity in dense matter
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  • Study "Pulsar timing techniques" to grasp observational methods
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tom.stoer
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Is there a well-established theory for temperature and cooling processes of neutron stars as a function of time?
 
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great, thanks!
 
Well, in general relativity, einstein theorized the existence of gravitational waves. Many astrophysicists have attributed the decreases of a neutron stars angular momentum to this "gravitational radiation".

Observational evidence consists of timing the intervals of each pulse from a pulsar, which tells us its rotational period. After monitoring it for a while (weeks? months? years?), the observing will record a consistent decay in it rotational energy. These observations are consistent with einstein's theory of general relativity, and almost confirm the existence of gravitational waves.
 
sikrut said:
Well, in general relativity, einstein theorized the existence of gravitational waves. Many astrophysicists have attributed the decreases of a neutron stars angular momentum to this "gravitational radiation".

Observational evidence consists of timing the intervals of each pulse from a pulsar, which tells us its rotational period. After monitoring it for a while (weeks? months? years?), the observing will record a consistent decay in it rotational energy. These observations are consistent with einstein's theory of general relativity, and almost confirm the existence of gravitational waves.

I think you misunderstand the topic of the thread. :biggrin:
 
Oh. Were we supposed to just supply an article like tom did?

and my spelling was atrocious in that post...
 
sikrut said:
Oh. Were we supposed to just supply an article like tom did?

and my spelling was atrocious in that post...

well, not exactly. It was that the OP asked for theories on neutron star temperature and cooling

not gravitational radiation or the rotational rates of neutron stars
 
sikrut said:
Oh. Were we supposed to just supply an article like tom did?

and my spelling was atrocious in that post...

As Shishkabob said, the topic was about the temperature and cooling of a neutron star, which has significant amounts of heat when it is formed. Gravitational waves are another topic altogether. No worries!
 
tom.stoer said:
Is there a well-established theory for temperature and cooling processes of neutron stars as a function of time?

Here's the latest.

Rapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superfluid-
ity in Dense Matter,
D. Page, M. Prakash, J. M. Lattimer, and A. W. Steiner,
Phys. Rev. Lett 106 (2011) 08110

Cooling neutron star in the Cassiopeia A supernova remnant:
Evidence for superfluidity in the core
Peter S. Shternin, Dmitry G. Yakovlev, Craig O. Heinke,
Wynn C. G. Ho, Daniel J. Patnaude
Mon. Not. R. Astron. Soc. 000, 1–6 (2010) 16 March 2011
 

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