Tag Archives: carbon

The chemical composition of Galactic ring nebulae around massive stars

C. Esteban (1,2), A. Mesa-Delgado (3), C. Morisset (4), J. Garcia-Rojas (1,2) (1) Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain. (2)Departamento de Astrofísica, Universidad de La Laguna, E-38206, La Laguna, Tenerife, Spain. (3) Instituto de Astrofísica, Facultad … Continue reading

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K-shell photoionization of ground-state Li-like carbon ions C^{3+}: experiment, theory and comparison with time-reversed photorecombination

A. Müller (1), S. Schippers (1), R. A. Phaneuf (2), S. W.  J. Scully (2,3), A. Aguilar (2,4), A. M. Covington (2), I. Álvarez (5), C. Cisneros (5), E. D. Emmons (2), M. F. Gharaibeh (2), G. Hinojosa (5), A. … Continue reading

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The Galactic R Coronae Borealis stars : the C2 Swan bands, the carbon problem, and the 12C/13C ratio

B. P. Hema (1), Gajendra Pandey1, and David L. Lambert (2) ((1) Indian Institute of Astrophysics, Bangalore, India; (2) The W.J. McDonald Observatory, University of Texas at Austin, TX, USA) Observed spectra of R Coronae Borealis (RCB) and hydrogen-deficient carbon … Continue reading

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LETGS: Carbon

Jeremy J. Drake (Smithsonian Astrophysical Observatory) Carbon. It’s everywhere these days. Popularized by the spewing chimneys of the industrial revolution, and explained by Fred Hoyle’s 12C resonance that facilitates Bethe’s triple-alpha process in stellar nucleosynthesis. They make everything with it … Continue reading

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