Planetary Nebulae (PN)
distances represent the fundamental parameter for the determination the
physical properties of the central star of PN. In this paper the distances
scale to Planetary Nebulae in the Galactic bulge were calculated related
to previous distances scales. The proposed distance scale was done by
recalibrated the previous distance scale technique CKS/D82. This scale limited
for nearby PN (D ≤ 3.5 kpc), so the
surface fluxes less than other distance scales. With these criteria the results
showed that the proposed distance scale is more accurate than other scales
related to the observations for adopted sample of PN distances, also the limit
of ionized radius (Rio)for all both optically thick and optically thin in the rang of sizes (0.45
> Rio (pc) > 0.03).
Cite this paper
S. Abdullah, N. Ali and M. Sallih, "Distances Scale Determination for a Planetary Nebula in Galactic Bulge," International Journal of Astronomy and Astrophysics, Vol. 3 No. 2, 2013, pp. 81-86. doi: 10.4236/ijaa.2013.32008.
 G. Lizett, G. Yolanda and L. Loinard, “Distance Estimated Based on Angular Expansion for the Planetary Nebulae NGC6881,” Astronomy Journal, Vol. 2, 2011, pp. 1-5.
 S. Lizia, S. Richard and V. Eva, “The Magellanic Cloud Calibration of the Galactic Planetary Nebulae Distance Scale,” Astrophysical Journal, Vol. 80, 2008, pp. 1129-1150.
 S. Kwok, “The Origin and Evolution of Planetary Nebulae,” 2nd Edition, Cambridge University Press, New York, 2001.
 G. Daub, “Statistical Surveys of Local Planetary Nebulae,” Astrophysical Journal, Vol. 260, 1982, pp. 612-624.
 J. Kaller and J. Lutiz, “Dust-distances to Planetary Nebulae ,” Publication of the Astronomical Society of the Pacific (PASP), Vol. 97, 1985, pp. 700-706.
 T. Bensby and L. Lunstrom, “The Distance Scale of Planetary Nebulae,” Astronomy and Astrophysics Journal, Vol. 374, No. 2, 2001, pp. 599-614.
 R. Shaw and L. Stanghellini, “Hubble Space Telescope Images of the Magellanic Cloud Planetary Nebulae,” Astrophysical Journal, Vol. 167, 2006, p. 201.
 J. Cahn and J. Kaller, “A Catalogues of Absolute Fluxes and Distances of Planetary Nebulae,” Astronomy and Astrophysics Journal, Vol. 94, 1992, pp. 399-410.
 S. Pottasch, “Local Space Density and Formation Rate of Planetary Nebulae,” Astronomy and Astrophysics Journal, Vol. 307, 1996, pp. 561-573.
 S. Pottasch, “Shklovsky Distance to Galactic Bulge Planetary Nebulae,” Astronomy and Astrophysics Journal, Vol. 256, 1992, pp. 251-257.