activity
19992008
most citedChemical abundances for Hf 2-2, a planetary nebula with the strongest known heavy element recombination lines

98 citations · 131 across the 9 of their papers we have counts for

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Showing 2003Show all

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astro-ph2003

A deep survey of heavy element lines in planetary nebulae - I. Observations and forbidden-line densities, temperatures and abundances

Y. G. Tsamis, M. J. Barlow, X. -W. Liu +2

We present spectrophotometry of 12 Galactic and 3 Magellanic Cloud planetary nebulae (PNe). Nine of the Galactic PNe were observed by scanning the slit across the PN. We use the fl…

astro-ph2003

Optical spectrum of the planetary nebula M 2-24

Y. Zhang, X. -W. Liu

We have obtained medium-resolution, deep optical long-slit spectra of the bulge planetary nebula (PN) M 2-24. The spectrum covers the wavelength range from 3610--7330 A. Over two h…