Sulfur, Chlorine, and Argon Abundances in Planetary Nebulae. IIB. Abundances in a Southern Sample | Zendy

J. B. Milingo | Zendy; R. B. C. Henry | Zendy; K. B. Kwitter | Zendy

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Sulfur, Chlorine, and Argon Abundances in Planetary Nebulae. IIB. Abundances in a Southern Sample

Author(s) -

J. B. Milingo,

R. B. C. Henry,

K. B. Kwitter

Publication year - 2002

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.546

H-Index - 277

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/324292

Subject(s) - abundance (ecology) , planetary nebula , chlorine , argon , sulfur , line (geometry) , astrophysics , homogeneous , oxygen , ionic bonding , analytical chemistry (journal) , chemistry , physics , ion , atomic physics , stars , environmental chemistry , ecology , biology , geometry , mathematics , organic chemistry , thermodynamics

We have undertaken a large spectroscopic survey of over 80 planetary nebulaewith the goal of providing a homogeneous spectroscopic database between3600-9600 Angstroms, as well as a set of consistently determined abundances,especially for oxygen, sulfur, chlorine, and argon. In the current paper wecalculate and report the S/O, Cl/O, and Ar/O abundance ratios for 45 southernplanetary nebulae (predominantly Type II), using our own recently observed linestrengths published in an earlier paper. One of the salient features of ourwork is the use of the NIR lines of [S III] 9069,9532 coupled with the [S III]temperature, to determine the S++ ionic abundance. We find the followingaverage abundances for these objects: S/O=0.011(+/-0.0064),Cl/O=0.00031(+/-0.00012), and Ar/O=0.0051(+/-0.0020).Comment: 25 pages, including 2 figures. Accepted for publication in the Astrophysical Journal Supplements. See also astro-ph/0106213 for Northern sample results and astro-ph/0108336 for Southern sample observation

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