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Zur interstellaren Extinktion am galaktischen Nordpol
Author(s) -
Pfau W.
Publication year - 1963
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.19632870302
Subject(s) - physics , extinction (optical mineralogy) , stars , latitude , astrophysics , luminosity , high latitude , astronomy , galaxy , optics
The mean interstellar extinction is derived from 55 high‐latitude stars ( b ≧ 60°) of luminosity class V to Āv = − 0 m .002 ± 0 m .020 (m.e.) much smaller than follows from a cosec‐law. In the area under consideration the reddening shows no dependence on galactic latitude. It might be possible, that the cosec‐law is not fulfilled to the highest latitudes, and therefore, the value of the extinction at the pole which is derived from such a law is too high.