International Ultraviolet Explorer satellite observations of seven high-excitation planetary nebulae

机译：国际紫外线探测卫星对七个高激发行星状星云的观测

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Observations of seven high-excitation planetary nebulae secured with the International Ultraviolet Explorer (IUE) satellite were combined with extensive ground-based data to obtain electron densities, gas kinetic temperatures, and ionic concentrations. We then employed a network of theoretical model nebulae to estimate the factors by which observed ionic concentrations must be multiplied to obtain elemental abundances. Comparison with a large sample of nebulae for which extensive ground-based observations have been obtained shows nitrogen to be markedly enhanced in some of these objects. Possibly most, if not all, high-excitation nebulae evolve from stars that have higher masses than progenitors of nebulae of low-to-moderate excitation.

机译：使用国际紫外线探测器（IUE）卫星获得的七个高激发行星状星云的观测结果与广泛的地面数据相结合，以获得电子密度，气体动力学温度和离子浓度。然后，我们使用理论模型星云的网络来估计必须乘以所观察到的离子浓度以获得元素丰度的因素。与已经获得广泛地面观测的大量星云样本进行比较后，发现其中一些物体中的氮显着增强。可能是，即使不是全部，大多数高激发星云都是从质量比低激发到中激发星云的祖先更高的恒星演化而来。

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期刊名称 Proceedings of the National Academy of Sciences of the United States of America
作者
L. H. Aller; C. D. Keyes;
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年(卷),期 1980(77),3
年度 1980
页码 1231–1234
总页数 4
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专利

1. THE HIGH-EXCITATION PLANETARY NEBULA NGC 246: OPTICAL AND NEAR-ULTRAVIOLET OBSERVATIONS AND TWO-DIMENSIONAL NUMERICAL MODELS [J] . ANDREW SZENTGYORGYI, JOHN RAYMOND, JOSE FRANCO, The Astrophysical journal . 2003,第2aaParta1期

机译：高度激发的星云NGC 246：光学和近地微观测和二维数值模型
2. THE HIGH-EXCITATION PLANETARY NEBULA NGC 246: OPTICAL AND NEAR-ULTRAVIOLET OBSERVATIONS AND TWO-DIMENSIONAL NUMERICAL MODELS [J] . ANDREW SZENTGYORGYI, JOHN RAYMOND, JOSE FRANCO, The Astrophysical journal . 2003,第2aPta1期

机译：高度激发的星云NGC 246：光学和近地微观测和二维数值模型
3. DISCOVERY OF ENHANCED GERMANIUM ABUNDANCES IN PLANETARY NEBULAE WITH THE FAR ULTRAVIOLET SPECTROSCOPIC EXPLORER [J] . N. C. STERLING, HARRIET L. DINERSTEIN, CHARLES W. BOWERS The Astrophysical journal . 2002,第1aaParta2期

机译：利用远紫外分光光度计发现增强的星云中锗的丰度
4. SMA Observations of AGB Stars, Proto-Planetary Nebulae, and Planetary Nebulae [C] . S. Kwok, T. Van Dinh, S. Muller, International Conference on Planetary Nebulae as Astronomical Tools . 2005

机译：SMA观察AGB Stars，Prodo-Planetary星云和行星星云
5. The Unexpected Molecular Complexity of Planetary Nebulae as Revealed by Millimeter-wave Observations [D] . Schmidt, Deborah Rose. 2019

机译：由毫米波观测结果显示的行星星云的意外分子复杂性
6. Ultraviolet spectrum and probable chemical composition of the high-excitation planetary nebula M1-1 [O] . Lawrence H. Aller, Charles D. Keyes, Walter A. Feibelman 1986

机译：高激发行星状星云M1-1的紫外光谱和可能的化学成分
7. International Ultraviolet Explorer satellite observations of seven high-excitation planetary nebulae [O] . Aller, L. H., Keyes, C. D. 1980

机译：国际紫外线探测卫星对七个高激发行星状星云的观测
8. ULTRAVIOLET OBSERVATIONS OF CLOSE-BINARY AND PULSATING NUCLEI OF PLANETARY NEBULAE WINDS AND SHELLS AROUND LOW-MASS SUPERGIANTS THE CLOSE-BINARY NUCLEUS OF THE PLANETARY NEBULA HFG 1 A SEARCH FOR BINARY NUCLEI OF PLANETARY NEBULAE UV MONITORING OF IRREGULARLY VARIABLE PLANETARY NUCLEI and THE PULSATING NUCLEUS OF THE PLANETARY NEBULA Lo 4 [R] . Howard E. Bond 1992

机译：低质量过剩部分的行星神经和风壳的近二元和脉动核的紫外线观察行星神经元HFG的近二进制核1寻找行星结核的二元核紫外线监测不规则变量的行星核和脉络核波多黎各的行星4

International Ultraviolet Explorer satellite observations of seven high-excitation planetary nebulae

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