Abundances in Galactic bulge planetary nebulae from optical, ultraviolet and infrared observations
Abundances in Galactic bulge planetary nebulae from optical, ultraviolet and infrared observations
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通过光学、紫外线和红外线观测发现银河核球行星状星云的丰度
DOI:
10.1093/mnras/stx1720
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发表时间:
2017
影响因子:
4.8
通讯作者:
Dinerstein, Harriet L.
中科院分区:
文献类型:
--
作者:
Smith, Christina L.;Zijlstra, Albert A.;Gesicki, Krzysztof M.;Dinerstein, Harriet L.
Iron suffers from high levels of depletion in the highly ionized environments of planetary nebulae, making the direct determination of undepleted elemental iron abundances difficult. Zinc, which does not suffer from the same depletion effects as iron, may be used as a surrogate element to measure iron abundances as there is an approximately constant zinc-to-iron ratio across a wide range of metallicities. In this paper, we report zinc abundances of six Galactic bulge planetary nebulae determined from new observations taken with Infrared Spectrometer And Array Camera (ISAAC) on the Very Large Telescope, Chile, prior to the instrument's decommissioning as well as a further three based upon literature observations. Ultraviolet and Visual Echelle Spectrograph (UVES) data of the sample planetary nebulae are presented and have been used to derive abundances, temperatures and densities of a variety of elements and ions. The abundances derived from the UVES data agree well with results from the literature. [Zn/H], determined from the ISAAC observations, is found to be generally subsolar and [O/Zn] is found to be either consistent or enriched with respect to solar.
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DOI:
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发表时间:
2004
期刊:
影响因子:
--
作者:
S. Górny;G. Stasińska;A. V. Escudero;Roberto Costa
通讯作者:
Roberto Costa
DOI:
10.1046/j.1365-8711.2000.03167.x
发表时间:
2000-03
影响因子:
4.8
作者:
Xiaowei Liu;P. Storey;M. Barlow;I. J. Danziger;M. Cohen;M. Bryce
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Xiaowei Liu;P. Storey;M. Barlow;I. J. Danziger;M. Cohen;M. Bryce
DOI:
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发表时间:
1976
期刊:
影响因子:
--
作者:
A. Pradhan
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A. Pradhan
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
B.Barbuy;A. Friaça;C. Silveira;V. Hill;M. Zoccali;D. Minniti;A. Renzini;S. Ortolani;A. Gómez
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A. Gómez
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
S. Pottasch;J. Bernard
通讯作者:
J. Bernard