Unidentified ionic emissions in comet 153P/Ikeya-Zhang

Details Unidentified ionic emissions in comet 153P/Ikeya-Zhang Unidentified ionic emissions in comet 153P/Ikeya-Zhang

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005asthe..98..653k&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 98, No. 10, p. 653 - 659 (2005)

Astronomy and Astrophysics

Astronomy

Comets, Spectroscopy

Scientific paper

We have performed low-dispersion spectroscopic observations of comets in optical using the 65 cm telescope with the Gunma Compact Spectrograph (GCS) at Gunma Astronomical Observatory. Comet Ikeya-Zhang that appeared in Spring 2002, was also observed by the 65 cm/GCS and unidentified ionic emission lines could be detected in the spectra. Comparisons between the observed spectra and spectra taken in laboratories indicate that the unidentified emission lines can be assigned to the rovibronic transitions from water ion (H2O+). Interaction between cometary ions and the solar wind may play an important role for the emission from water ions.

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