High Resolution, High S/N Spectrum of IC 418

Details High Resolution, High S/N Spectrum of IC 418 High Resolution, High S/N Spectrum of IC 418

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.1513s&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #15.13; Bulletin of the American Astronomical Society, Vol. 34, p.666

Astronomy and Astrophysics

Astronomy

Scientific paper

We present preliminary results from our recently obtained deep, high resolution (R=30000) echelle spectra of the planetary nebula IC 418. Numerous weak lines have been detected at fluxes down to ≈ 1.0 x 10-5 that of Hβ , and identified with our EMILI line identification software. Spatially resolved line profiles are also presented for some of the stronger lines, and we discuss the implications of our findings for the discrepancies in intensities of recombination and collisionally excited forbidden lines originating from the same ion.

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