论文标题
星际灭绝朝着共生星星
Interstellar extinction toward symbiotic stars
论文作者
论文摘要
在5780 A，5797 A和6613 A处使用漫射的星际条带（DIB），在高分辨率光谱中可见，并测量其等效宽度，我们估计朝向七个共生星的星际灭绝。我们找到$ e_ {b-v} $ = $ 1.28 \ pm 0.10 $，as 289，$ e_ {b-v} $ = $ 1.55 \ pm 0.10 $ bi cru，$ e_ {b-v} $ = $ 0.63 $ e_ {b-v} $ = $ 0.30 \ pm 0.05 $ v2905 sgr，$ e_ {b-v} $ = $ 1.52 \ pm 0.11 $ v417 cen，$ e_ {b-v} $ = $ = $ 0.81 \ $ 0.81 \ pm 0.10 $ pn sa 3-22 $ 0.10 $ 0.10 $。派生值与银河系的灭绝一致。
Using diffuse interstellar bands (DIBs) at 5780 A, 5797 A and 6613 A, visible in the high resolution spectra, and measuring their equivalent widths, we estimate the interstellar extinction toward seven symbiotic stars. We find $E_{B-V}$= $1.28 \pm 0.10$ for AS 289, $E_{B-V}$= $1.55 \pm 0.10$ for BI Cru, $E_{B-V}$= $0.63 \pm 0.10$ for HD330036, $E_{B-V}$= $0.33 \pm 0.05$ for V2756 Sgr, $E_{B-V}$= $0.30 \pm 0.05$ for V2905 Sgr, $E_{B-V}$= $1.52 \pm 0.11$ for V417 Cen, $E_{B-V}$= $0.81 \pm 0.10$ for PN Sa 3-22. The derived values are in agreement with the extinction through the Galaxy.
