Formula for neutrinos emitted per second from a Proto Neutron Star

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Discussion Overview

The discussion revolves around the formulation of a mathematical model to calculate the number of neutrinos emitted from a proto-neutron star (PNS) during its lifespan, which is suggested to be between 10 to 20 seconds. Participants explore the necessary parameters for this model, including the total number of neutrinos present in the PNS and the dynamics of neutrino production and cooling.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant is attempting to derive a formula for neutrino emission from a proto-neutron star and mentions needing to account for the total number of neutrinos and those trapped during cooling.
  • Another participant suggests comparing the proposed formula to existing models in the literature, emphasizing that neutrino production and transmission depend on the properties and processes of the PNS.
  • Several references to academic articles are provided, which discuss proto-neutron star convection, neutrino-driven winds, and simulations related to supernova theory.
  • A participant expresses gratitude for the references and indicates they plan to review the materials before responding further.
  • There is a request for information on recent research related to the topic and for platforms where a high school paper might be shared, indicating the participant's status as a student and their expectations regarding publication.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the formulation of the neutrino emission model, and multiple competing views regarding the necessary parameters and existing literature remain evident.

Contextual Notes

The discussion highlights the dependence of the proposed formula on various assumptions about the properties and processes of proto-neutron stars, as well as the need for further exploration of the literature to refine the model.

Who May Find This Useful

This discussion may be useful for students and researchers interested in astrophysics, particularly those focusing on neutrino physics, supernova phenomena, and proto-neutron star evolution.

Neutrin0
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TL;DR
In need of some help fixing my formula
My current issue is trying to create a formula to find the amount of neutrinos emitted from a Proto neutron star through its life span ( which is 10-20 seconds?) currently I’ve deduced I’ll need to know the amount of total neutrinos in the PNS ( which is 10 to the 57 power ) and the amount trapped and the amount of neutrinos made during cooling. It’s for a paper I’m trying to write and I’m in the math part right now and trying to make my formula work, if anyone can help me out or push me in the right direction it would be great.
 
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Neutrin0 said:
TL;DR: In need of some help fixing my formula

My current issue is trying to create a formula to find the amount of neutrinos emitted from a Proto neutron star through its life span ( which is 10-20 seconds?) currently I’ve deduced I’ll need to know the amount of total neutrinos in the PNS ( which is 10 to the 57 power ) and the amount trapped and the amount of neutrinos made during cooling. It’s for a paper I’m trying to write and I’m in the math part right now and trying to make my formula work, if anyone can help me out or push me in the right direction it would be great.
Has one compared one's formula to other models in the literature? The neutrion production and transmission will depend on assumptions of PNS properties and processes.

See for example,

Proto-neutron star convection and the neutrino-driven wind: implications for the νp-process​

https://academic.oup.com/mnras/article/530/2/2001/7645470

Protoneutron star evolution and the neutrino-driven wind in general relativistic neutrino radiation hydrodynamics simulations​

https://www.aanda.org/articles/aa/full_html/2010/09/aa13106-09/aa13106-09.html

Supernova Theory: Simulation and Neutrino Fluxes
https://www.slac.stanford.edu/econf/C0805263/Slides/Budge.pdf

In the last citation:

The core collapse converts about 1.5 solar masses of
symmetric matter to a proto-neutron star about 30 km in
radius. The final neutron star has a radius of about 10 km
. . .

Convection within the proto-neutron star and mantle
clearly helps, but there is disagreement on whether this is
sufficient. Could the answer be better neutrino transport?
 
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Astronuc said:
Has one compared one's formula to other models in the literature? The neutrion production and transmission will depend on assumptions of PNS properties and processes.

See for example,

Proto-neutron star convection and the neutrino-driven wind: implications for the νp-process​

https://academic.oup.com/mnras/article/530/2/2001/7645470

Protoneutron star evolution and the neutrino-driven wind in general relativistic neutrino radiation hydrodynamics simulations​

https://www.aanda.org/articles/aa/full_html/2010/09/aa13106-09/aa13106-09.html

Supernova Theory: Simulation and Neutrino Fluxes
https://www.slac.stanford.edu/econf/C0805263/Slides/Budge.pdf

In the last citation:
I thank you for the models you’ve sent, I wasn’t able to take a look at them today but I hope to tomorrow or soon. ( currently waiting on some books that’ll help me out a bit with all of this, I’ll make sure to post a response once I’ve read all the articles and gotten my books )
 
Astronuc said:
Has one compared one's formula to other models in the literature? The neutrion production and transmission will depend on assumptions of PNS properties and processes.

See for example,

Proto-neutron star convection and the neutrino-driven wind: implications for the νp-process​

https://academic.oup.com/mnras/article/530/2/2001/7645470

Protoneutron star evolution and the neutrino-driven wind in general relativistic neutrino radiation hydrodynamics simulations​

https://www.aanda.org/articles/aa/full_html/2010/09/aa13106-09/aa13106-09.html

Supernova Theory: Simulation and Neutrino Fluxes
https://www.slac.stanford.edu/econf/C0805263/Slides/Budge.pdf

In the last citation:
A quick little update, ive seen some of the formulas you've linked but I do have a question. Do you know if there has been any recent research on the topic? I havent been able to find much other than the links you proved. If there is i would like to compare further with my current static formula and to go from there, as well since this would be my first paper do you know of any sites i would be able to post my paper on? It should be known im still in highschool so i dont except my paper to get published in a popular journal or anything like that, but just enough to get started.
 

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