Swan band

Spectrum of the blue flame from a butane torch showing excited molecular radical band emission and Swan bands.

Swan bands consist of several sequences of vibrational bands scattered throughout the visible spectrum. They are a characteristic of the spectra of carbon stars, comets and burning hydrocarbon fuels. The bands are named for the Scottish physicist William Swan, who first studied the spectral analysis of radical diatomic carbon (C2) in 1856.

See also

References

  1. ↑ Robert B. King (1948). "Relative Transition Probabilities of the Swan Bands of Carbon". Astrophysical Journal. 108: 429. Bibcode:1948ApJ...108..429K. doi:10.1086/145078.
  2. ↑ R.C. Johnson (1927). "The structure and origin of the Swan band spectrum of carbon". Philosophical Transactions of the Royal Society A. 226 (636–646): 157–230. Bibcode:1927RSPTA.226..157J. doi:10.1098/rsta.1927.0005.
  3. ↑ W.E. Pretty (1927). "The Swan band spectrum of carbon". Proceedings of the Physical Society. 40 (1): 71–78. Bibcode:1927PPS....40...71P. doi:10.1088/0959-5309/40/1/313.
  4. ↑ W. Swan (1857). "On the prismatic spectra of the flames of compounds of carbon and hydrogen". Transactions of the Royal Society of Edinburgh. 21 (3): 411–430. doi:10.1017/S0080456800032233. S2CID 98339461.