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arXiv · 1009.3057

K 3-22: a D-type symbiotic star

Romano L. M. Corradi·Corrado Giammanco
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Abstract

A goal of the IPHAS survey is to determine the frequency and nature of emission-line sources in the Galactic plane. According to our selection criteria, K 3-22 is a candidate symbiotic star, but it was previously classified as a planetary nebula. To determine its nature, we acquired a low-resolution optical spectrum of K 3-22. Our analysis of our spectroscopy demonstrates that K 3-22 is indeed a D-type symbiotic star, because of its high excitation nebular spectrum and the simultaneous presence of Raman-scattered O VI emission at 6825 and 7082 angstrom, which is detected primarily in symbiotic stars.

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Romano L. M. Corradi, Corrado Giammanco. 2010-09-15. K 3-22: a D-type symbiotic star. https://doi.org/10.1051/0004-6361/201015541

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