File:Black_body.svg
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Summary
DescriptionBlack body.svg |
Català: Comparació entre les corbes de radiació espectral per a un cos negre segons la teoria de Planck i la teoria clàssica de Rayleigh-Jeans.
English: Black body spectral radiance curves for various temperatures after Planck, and comparison with the classical theory of Rayleigh-Jeans (in cgs units).
Italiano: Confronto fra le curve del corpo nero della teoria di Planck e della teoria classica di Rayleigh-Jeans. |
Date | |
Source | Own work |
Author | Darth Kule |
Other versions |
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SVG development InfoField | |
Source code InfoField |
set term svg
set termoption enhanced
set encoding utf8
set output 'Black_body.svg'
unset key
set tics nomirror out
set border 3
set xrange [0:6]
set yrange [0:15]
set ylabel "Spectral radiance (kW • sr⁻¹ • m⁻² • nm⁻¹)"
set xlabel "Wavelength (μm)"
set label "5000 K" at 0.45,13.1
set label "4000 K" at 0.6,4.55
set label "3000 K" at 0.8,1.4
set label "Classical theory (5000 K)" at 1.55,11
set grid lc rgb "light-blue"
# length unit is micrometre
c=3e14 # speed of light
h=6.626e-22 # Planck constant
k=1.38e-11 # Boltzmann constant
# Planck curves
p1(x)=1e-6*2*h*c**2/(x**5*(exp(h*c/(x*k*3000))-1))
p2(x)=1e-6*2*h*c**2/(x**5*(exp(h*c/(x*k*4000))-1))
p3(x)=1e-6*2*h*c**2/(x**5*(exp(h*c/(x*k*5000))-1))
p4(x)=1e-6*2*h*c**2/(x**5*(exp(h*c/(x*k*6000))-1))
# Rayleigh-Jeans curve
rj(x)=1e-6*2*c*k*5000/(x**4)
plot p1(x) lw 2, p2(x) lw 2, p3(x) lw 2, p4(x) lw 2
plot rj(x) lw 2 lc rgb "black"\
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Licensing
Public domainPublic domainfalsefalse |
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
All translations
Translations added to this section should be free of copyright claims (either CC0 or public domain).
- black body ≅ black body (Q161424)
- black body
- black body radiation ≅ black-body radiation (Q900097)
- black body radiation
- ultraviolet ≅ ultraviolet radiation (Q11391)
- ultraviolet
- visible ≅ visible spectrum (Q76299)
- visible
- infrared ≅ infrared radiation (Q11388)
- infrared
- wavelength ≅ wavelength (Q41364)
- wavelength
- μm ≅ micrometre (Q175821)
- μm
- spectral radiance ≅ spectral radiant intensity in terms of wavelength (Q81072410)
- spectral radiance
- spectral radiance ≅ spectral radiant energy (Q80237041)
- spectral radiance
- kelvin ≅ kelvin (Q11579)
- kelvin
- μm, میکرومتر, µм, мкм, мкм, 微米, µm, μm, μm, µm, µm
- K, К, K, K, K
Items portrayed in this file
depicts
5 June 2010
image/svg+xml
8dc664ed52e331a618d8e64c3380a6ad8f284f28
20,650 byte
480 pixel
600 pixel
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 03:48, 3 January 2024 | 600 × 480 (20 KB) | Glrx | remove #text nodes after tspan elements // Editing SVG source code using c:User:Rillke/SVGedit.js | |
11:08, 30 September 2023 | 600 × 480 (20 KB) | Townie | File uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for ca. | ||
11:28, 7 April 2020 | 600 × 480 (15 KB) | GKFX | cleanup, move curves to foreground | ||
14:21, 6 March 2020 | 600 × 480 (33 KB) | Oz1sej | File uploaded using svgtranslate tool (https://tools.wmflabs.org/svgtranslate/). Added translation for da. | ||
14:19, 6 March 2020 | 600 × 480 (33 KB) | Oz1sej | File uploaded using svgtranslate tool (https://tools.wmflabs.org/svgtranslate/). Added translation for da. | ||
17:06, 10 July 2013 | 600 × 480 (30 KB) | Cmglee | Add visible spectrum. | ||
00:18, 11 February 2013 | 600 × 480 (26 KB) | Vaughan Pratt | "Spectral radiance" more standard than "Intensity" in ylabel; replaced "arb units" by actual units (kW per sq m per steradian per nm) | ||
10:40, 18 September 2010 | 600 × 480 (25 KB) | UncleDouggie | Restore the μ symbol in the axis label that I lost when generating the recent update. | ||
10:03, 18 September 2010 | 600 × 480 (25 KB) | UncleDouggie | Added grid lines to match original PNG file, changed color of classical plot to black as required by existing text in some articles that use the PNG version. | ||
15:58, 5 June 2010 | 600 × 480 (11 KB) | Darth Kule | fix mistake |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
- Astronomical spectroscopy
- Black-body radiation
- Black body
- History of quantum mechanics
- Introduction to quantum mechanics
- Modern physics
- Planck's law
- Planck constant
- Ultraviolet catastrophe
- Talk:Extinction (astronomy)
- Wikipedia:Reference desk/Archives/Science/2011 November 12
- Wikipedia:Reference desk/Archives/Science/2023 July 20
- Wikipedia:Reference desk/Archives/Science/2023 October 3
- Portal:Physics
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Image title | Produced by GNUPLOT 4.4 patchlevel 0, background spectrum based on http://commons.wikimedia.org/wiki/File:Linear_visible_spectrum.svg |
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Width | 600 |
Height | 480 |
Retrieved from "https://en.wikipedia.org/wiki/File:Black_body.svg"