File:Stefan Boltzmann 001.png

Summary[edit]

DescriptionStefan Boltzmann 001.png	English: Graph of a function of total emitted energy of a black body ${\displaystyle j^{\star }}$ proportional to the fourth power of its thermodynamic temeprature ${\displaystyle T\,}$ according to the Stefan–Boltzmann law. In turquoise colour is a total energy according to the Wien approximation, equals ${\displaystyle j^{\star }/\zeta (4)\approx 0.923938j^{\star }}$. Slovenščina: Graf funkcije odvisnosti gostote izsevanega energijskega toka črnega telesa ${\displaystyle j^{\star }}$ od termodinamične temperature ${\displaystyle T\,}$ po Stefan-Boltzmannovem zakonu. Turkizna barva je gostota energijskega toka po Wienovem približku, enaka ${\displaystyle j^{\star }/\zeta (4)\approx 0,923938j^{\star }}$.
Date	22 March 2008
Source	Own work
Author	xJaM

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Licensing[edit]

I, the copyright holder of this work, hereby publish it under the following license:

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
	You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
	This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue

Maple code[edit]

Created with Maple:

fi_h := 6.62606896 * 10^(-34):
fi_k_B := 1.3806504 * 10^(-23):
fi_c_0:=299792458:
fi_sigma := 2 * Pi^(5) * fi_k_B^(4)/( 15 * fi_h^(3) * fi_c_0^(2) ):
 
f1j := fi_sigma * T^(4):
f1jw := (90/Pi^(4)) * fi_sigma * T^(4):
 
plot([f1j,f1jw], T=1000..10000, 
      j[T]=0..6*10^(8), color=[navy,turquoise], axes=boxed, thickness=[2,1], labels=[T,j] );