Diffuse Interstellar Bands (DIBs) as a tracer of warp in the Third Galactic Quadrant: Preliminary Results

被引：1
|
作者：
Istiqomah, A. N. [1 ]
Puspitarini, L. [1 ,2 ,3 ]
Arifyanto, M. I. [1 ,2 ,3 ]
机构：
[1] Inst Teknol Bandung, Undergrad Program, Astron Study Program, Bandung, Indonesia
[2] Inst Teknol Bandung, Fac Math & Nat Sci, Astron Res Div, Bandung, Indonesia
[3] Inst Teknol Bandung, Fac Math & Nat Sci, Bosscha Observ, Bandung, Indonesia
来源：
10TH SOUTHEAST ASIA ASTRONOMY NETWORK | 2019年 / 1231卷
关键词：
Galactic Warp; Interstellar Matter; Diffuse Interstellar Bands; MILKY;
D O I：
10.1088/1742-6596/1231/1/012016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We measured 6613.6 A diffuse interstellar band (DIB) recorded in the 318 stellar spectra of stars located in the Third Galactic Quadrant. In agreement with previous studies, we found that the DIB strength has a positive correlation with the interstellar extinction, even though significant deviations were found. The correlation study between the DIB strength and the extinction is limited by the fact that the 3D extinction survey in the Galaxy is incomplete. The DIB spatial distribution toward the South Galactic Pole indicates that the DIB carrier(s) are distributed similarly as other Galactic warp tracer. More data, especially DIB measurements from target stars above Galactic principal plane, are needed to demonstrate that DIB can be used as a tracer of Galactic warp.
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页数：6
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