Abstract
Abundance analysis of Carbon and Nitrogen has been performed in a sample of 32 late F and early G type dwarf metal poor stars in the metallicity range −3.3 < [Fe/H] < 0 using molecular lines of CH and NH in the near-UV. We find that [C/Fe] decreases slowly with increasing [Fe/H] while [N/Fe] remains flat. Furthermore we derived uniform and accurate C/O and N/O ratios using oxygen abundances from near-UV OH lines employed in our previous studies. We confirm the metallicity dependence of C/O ratio known from previous studies and caused by the metallicity dependence of the C yields from massive stars with mass loss. [C/O] does not remain constant below [O/H]=−0.5 but increases again with a large scatter. We find that a primary component is required in order explain the observations of N/O and that the N production history is similar in our Galaxy and DLAs.
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References
1. Akerman, C.J., Carigi, L., Nissen, P.E., Pettini, M. & Asplund, M. 2004, A&A, 414, 931
2. Anders, E., & Grevesse, N. 1989, Geochim et. Cosmochim. Acta 53, 197
3. Arnett, W.D. & Schramm, D.N. 1973, ApJ, 185, L47
4. Bessell, M. S. & Norris, J. 1982, ApJ, 263, L29
5. Bihain, G., Israelian, G., Rebolo, R., Bonifacio, P. & Molaro, P. 2004, A&A, 423, 777
6. Boesgaard, A.M., King, J.R., Deliyannis, C. P., & Vogt, S.S. 1999, AJ, 117, 492
7. Burbidge, E.M., Burbidge, G.R., Fowler, W.A. and Hoyle, F. 1957, Rev. Mod. Phys., 29, 547
8. Carbon, D. F., Barbuy, B., Kraft, R. P., Friel, E. D., & Suntze., N. B. 1987, PASP, 99, 335
9. Ecuvillon, A., Israelian, G., Santos, N., Mayor, M., Garía López, R. J. & Randich, S. 2004, A&A, 426, 619
10. Edmunds, M. G. & Pagel, B. E. 1978, MNRAS, 185, 78P
11. Henry, R. B. C., Edmunds, M. G., & Köppen, J. 2000, ApJ, 541, 660
12. Israelian, G., García López, R. J. & Rebolo, R. 1998, ApJ, 507, 805
13. Israelian, G., García Löpez, R. J. & Rebolo, R. 2000, in “The Evolution of the Milky Way: stars versus clusters”, Eds. F. Matteucci and F. Giovannelli, (Dordrecht: Kluwer), p. 35
14. Israelian, G., Rebolo, R., García Löpez, R., Bonifacio, P., Molaro, P., Basri, G., & Shchukina, N. 2001, ApJ, 551, 833
15. Israelian, G., Ecuvillon, A., Rebolo, R., García Löpez, R., Bonifacio, P., Molaro, P. 2004, 421, 649
16. Laird, J. B. 1985, ApJ, 289, 556
17. Meynet, G. & Maeder, A. 2002, A&A, 390, 561
18. Pagel, B. E. J., & Edmunds, M. G. 1981, Ann. Rev. Astr. Ap., 19, 77
19. Tomkin, J., & Lambert, L. 1984, ApJ, 279, 220
20. Tomkin, J., Lemke, M., Lambert, D. L., & Sneden, C. 1992, AJ, 104, 1568
21. van den Hoek, L. B. & Groenewegen, M. A. T. 1997, A&AS, 123, 305
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Israelian, G. (2006). Galactic Evolution of Carbon and Nitrogen. In: Randich, S., Pasquini, L. (eds) Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites. ESO ASTROPHYSICS SYMPOSIA. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-34136-9_40
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DOI: https://doi.org/10.1007/978-3-540-34136-9_40
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