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Extinction - Distances to Planetary Nebulae

Published online by Cambridge University Press:  18 September 2017

R. Gathier  and
S.R. Pottasch
R. Gathier
Affiliation:
Kapteyn Astronomical Institute, Groningen, The Netherlands
S.R. Pottasch
Affiliation:
Kapteyn Astronomical Institute, Groningen, The Netherlands

Extract

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Individual distances to planetary nebulae (PN) which are independent of any assumption of average nebular characteristics, can be found if one knows the relation between interstellar extinction (E(B-V)) and distance along the line-of-sight to the PN, together with the E(B-V) towards the PN itself (Lutz, 1973 and Acker, 1978). We used VBLUW-photometry (Lub and Pel, 1977) to derive accurate E(B-V)'s and distances of stars up to V-magnitude + 14, within 0°.3 from the PN. Table 1 lists the PN we studied. The E(B-V)'s of the PN are derived from:

Type
Abstracts of Contributed Papers
Information
Symposium - International Astronomical Union , Volume 103: Planetary Nebulae , 1983 , pp. 540
Copyright
Copyright © Reidel 1983 

References

Acker, : 1978, Astron. Astrophys. Suppl. 33, 367 Google Scholar
Lub, and Pel, : 1977, Astron. Astrophys. 54, 137 Google Scholar
Lutz, : 1973, Ap. J. 181, 135 CrossRefGoogle Scholar
Pottasch, , Wesselius, , Wu, and van Duinen, : 1977, Astron. Astrophys. 54, 435.Google Scholar
Seaton, : 1978, M.N.R.A.S. 185, 5P.CrossRefGoogle Scholar