Extinction-distances to planetary nebulae

Details Extinction-distances to planetary nebulae Extinction-distances to planetary nebulae

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...281..526m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 281, no. 2, p. 526-535

Astronomy and Astrophysics

Astrophysics

17

Astronomical Photometry, Cosmic Dust, Distance, Interstellar Extinction, Interstellar Matter, Planetary Nebulae, Stellar Color, Stellar Evolution, Stellar Gravitation, Stellar Temperature

Scientific paper

Photometry in the Walraven VBLUW system is used to construct diagrams of color excess vs. distance for stars of spectral type earlier than A7 (Teff greater than 8000 K) within small fields around eight planetary nebulae. With these diagrams and the known interstellar reddening of the planetary nebulae distances or lower limits to the distances have been determined. For IC 2448 and TC 1 these reddening distances are considerably lower than those determined by Mendez et al. (1988a, 1992) with spectroscopic methods.

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