K 3-22: a D-type symbiotic star (Research Note)

被引：7

作者：

Corradi, R. L. M. ^{[1
,2
]}

Giammanco, C. ^{[1
,2
]}

机构：

[1] Inst Astrofis Canarias, Tenerife 38200, Spain

[2] Univ La Laguna, Dept Astrofis, Tenerife 38205, Spain

来源：

ASTRONOMY & ASTROPHYSICS | 2010年 / 520卷

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

binaries: symbiotic; planetary nebulae: general; PLANETARY-NEBULAE; RAMAN-SCATTERING; IPHAS; SPECTRUM; CATALOG;

D O I：

10.1051/0004-6361/201015541

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 angstrom and 7082 angstrom, which is detected primarily in symbiotic stars.

引用

页数：3

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