11. The star included strong absorption lines due to magnesium, aluminium, silicon, calcium iron and nickel. 12. Absorption lines are explicitly described as not being visible.13. The first infrared observations were published in 1998, in which both absorption lines were discussed. 14. SN 2002cx was by then in the nebular phase, with emission lines dominating over absorption lines . 15. Cotton then became interested in the Faraday effect near absorption lines and demonstrated magnetic circular dichroism. 16. Shell absorption lines show variable radial velocities, possibly due to variations in accretion from the disk. 17. The Keck observations identified two such absorption lines , one of magnesium and the other of iron. 18. Better spectrography in the 1950s showed that and water vapor absorption lines did not overlap completely. 19. Such broadening of absorption lines is not seen in high-redshift objects, thus falsifying this particular hypothesis. 20. Its spectrum lacked any emission or absorption lines .
