. Back to the Page of Chemical Elements . C - Carbon Z=6 . Electron configuration: 1s 2 2s 2 2p 2 . Solar Abundance: 8.55 ? 0.05 (Grevesse et al. 1996) . ION . Spectrum . Configuration . I.P. (eV) . C . CI . 1s 2 2s 2 2p 2 . C + . CII . 1s 2 2s 2 2p . C 2+ . CIII . 1s 2 2s 2 . C 3+ . CIV . 1s 2 2s . C 4+ . CV . 1s 2 . C 5+ . CVI . 1s . References: . Grevesse N., Noels A., Sanyal A.J. 1996, ASP Conf. Series, 99 , 117-126

/0004-6361:20011562 c ESO 2002 Astronomy Astrophysics Bispectrum speckle interferometry of the massive protostellar object S140 IRS 1: Evidence for multiple outflows G. Weigelt1 , Y. Y. Balega2 , T. Preibisch1 , D. Schertl1 , and M. D. Smith 1 2 3 3 Max-Planck-Institut fur Radioastronomie, Auf ... Multiple outflows from S140 IRS 1 the arcs in our image, as we have demonstrated by fitting their morphologies with the predicted cavity shapes of the jet-driven outflow model. ...