Abundances in planetary nebulae: NGC 2792 Export

@article{citeulike:5317211, abstract = {The mid-infrared spectrum of the rather circular planetary nebula NGC 2792 taken with the Spitzer Space Telescope is presented. This spectrum is combined with the ultraviolet IUE spectrum and with the spectrum in the visual wavelength region to obtain a complete, extinction corrected, spectrum. The chemical composition of the nebula is then calculated in two ways. First by directly calculating and adding individual ion abundances, and secondly by building a model nebula that attempts to reproduce the observed spectrum. Because it is now possible to include the nebular temperature gradient, the chemical composition is more accurate than has been given earlier in the literature. Discussion of both the central star and the evolution of the star-nebula is then given.}, author = {Pottasch, S. R. and Surendiranath, R. and Bernard-Salas, J. and Roellig, T. L.}, citeulike-article-id = {5317211}, citeulike-linkout-0 = {http://www.aanda.org/index.php?option=article&access=doi&doi=10.1051/0004-6361/200912076}, journal = {Astronomy \& Astrophysics}, keywords = {planetary\_nebulae}, pages = {189--197}, posted-at = {2009-08-01 05:57:15}, priority = {2}, title = {Abundances in planetary nebulae: NGC 2792}, url = {http://www.aanda.org/index.php?option=article&access=doi&doi=10.1051/0004-6361/200912076}, volume = {502}, year = {2009} }

TY - JOUR ID - citeulike:5317211 L3 - citeulike-article-id:5317211 N2 - The mid-infrared spectrum of the rather circular planetary nebula NGC 2792 taken with the Spitzer Space Telescope is presented. This spectrum is combined with the ultraviolet IUE spectrum and with the spectrum in the visual wavelength region to obtain a complete, extinction corrected, spectrum. The chemical composition of the nebula is then calculated in two ways. First by directly calculating and adding individual ion abundances, and secondly by building a model nebula that attempts to reproduce the observed spectrum. Because it is now possible to include the nebular temperature gradient, the chemical composition is more accurate than has been given earlier in the literature. Discussion of both the central star and the evolution of the star-nebula is then given. JF - Astronomy & Astrophysics EP - 197 TI - Abundances in planetary nebulae: NGC 2792 VL - 502 SP - 189 KW - planetary_nebulae AU - Pottasch, SR AU - Surendiranath, R AU - Bernard-Salas, J AU - Roellig, TL PY - 2009/// UR - http://www.aanda.org/index.php?option=article&access=doi&doi=10.1051/0004-6361/200912076 ER -