On Milne–Barbier–Unsöld relationships

Abstract: This short review aims to clarify upon the origins of so-called Eddington-Barbier relationships, which relate the emergent specific intensity and the flux to the photospheric source function at specific optical depths. Here we discuss the assumptions behind the original derivation of Barbier (1943).We also point to the fact that Milne had already formulated these two relations in 1921.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: On Milne–Barbier–Unsöld relationships ; volume:27 ; number:1 ; year:2018 ; pages:76-79 ; extent:4 ; Open astronomy ; 27, Heft 1 (2018), 76-79 (gesamt 4)

Contributors, Places and Time

• Creator: Paletou, Frédéric

Further information

• DOI: 10.1515/astro-2018-0018
• URN: urn:nbn:de:101:1-2405281618319.009032417650
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:45 AM CEST