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| − | This is the paper that first observed continuous-spectra from planetary nebulae in the ''visible'' range (first continuous were by Slipher{{cite|slipher12a}}) | + | This is the paper that first observed continuous-spectra from planetary nebulae in the ''visible'' range (first continuous-spectra from reflection nebulae were by Slipher{{cite|slipher12a}}) and as due to the two-photon mechanism, although the origin remained uncertain until the work of Spitzer and Greenstein~{{cite|spitzer54a}}. |
== References == | == References == | ||
<references/> | <references/> | ||
Latest revision as of 14:43, 10 February 2024
The Continuous Spectra of Certain Planetary Nebulæ A Photometric Study. T. L. Page in Mon. Notices Royal Astron. Soc. 96:604 (1936). What the paper says?
This is the paper that first observed continuous-spectra from planetary nebulae in the visible range (first continuous-spectra from reflection nebulae were by Slipher[1]) and as due to the two-photon mechanism, although the origin remained uncertain until the work of Spitzer and Greenstein~[2].