Neutron star temperature and cooling

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Discussion Overview

The discussion revolves around the theories related to the temperature and cooling processes of neutron stars over time. Participants explore various aspects, including observational evidence and theoretical frameworks, while also addressing tangential topics such as gravitational waves.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants inquire about well-established theories for neutron star temperature and cooling processes as a function of time.
  • Links to observational studies and papers are provided, suggesting that some research includes cooling curves for neutron stars.
  • One participant discusses the relationship between gravitational waves and neutron star angular momentum, referencing Einstein's theory of general relativity.
  • Another participant points out that the original topic is specifically about temperature and cooling, not gravitational radiation or rotational rates.
  • Recent studies are mentioned that propose rapid cooling of neutron stars due to neutron superfluidity in dense matter.

Areas of Agreement / Disagreement

Participants express differing views on the relevance of gravitational waves to the original question about neutron star cooling. While some focus on the cooling processes, others introduce gravitational radiation, leading to a lack of consensus on the main topic of discussion.

Contextual Notes

There are references to specific studies and papers that may contain relevant data, but the discussion does not resolve the complexities of the cooling processes or the implications of gravitational waves.

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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