Interstellar C2 Molecule as Seen in HST/STIS Data
Marcin Dyrka, Bogdan Wszołek, Micha l Pawlikowski
Abstract
Carbon chains are sometimes considered as possible carriers of some diffuse interstellar bands. Spectroscopic observations in UV band carried by spectrometer STIS fed with HST, give us the possibility to detect many interstellar molecules. We focused our attention on C2 molecule and we detected it in spectra of three reddened stars (HD27778, HD147933, HD207198). Interstellar molecule C2 was detected as a set of absorption lines around 2313 angstroms.
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