Elemental Abundances in NGC 3516 | Zendy

T. J. Turner | Zendy; S. B. Kraemer | Zendy; R. F. Mushotzky | Zendy; I. M. George | Zendy; J. R. Gabel | Zendy

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Elemental Abundances in NGC 3516

Author(s) -

T. J. Turner,

S. B. Kraemer,

R. F. Mushotzky,

I. M. George,

J. R. Gabel

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/376901

Subject(s) - physics , astrophysics , neon , photoionization , galaxy , spectral line , emission spectrum , stars , radiative transfer , astronomy , line (geometry) , active galactic nucleus , atomic physics , ionization , argon , optics , ion , quantum mechanics , geometry , mathematics

We present RGS data from an XMM-Newton observation of the Seyfert 1 galaxyNGC 3516, taken while the continuum source was in an extreme low state. Thespectrum shows numerous emission lines including the H-like lines of C, N and Oand the He-like lines of N, O and Ne. These data show that the N lines are farstronger than would be expected from gas of solar abundances. Based on ourphotoionization models, we find that N is overabundant compared to C, O and Neby at least a factor of 2.5. We suggest this is the result of secondaryproduction of N in intermediate mass stars, and indicative of the history ofstar formation in NGC 3516.Comment: 19 pages, 3 color figures. ApJ in pres

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