Diffuse interstellar absorption bands  

作　　者：XIANG FuYuan1,2,LIANG ShunLin2 & LI AiGen2,3 1 Faculty of Materials,Photoelectronics and Physics,Xiangtan University,Xiangtan 411105,China 2 Department of Physics and Astronomy,University of Missouri,Columbia,MO 65211,USA 3 Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210008,China 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2009年第4期489-501,共13页中国科学：物理学、力学、天文学（英文版）

基　　金：Supported by the NSF of USA (Grant No. AST-0707866);the National Natural Science Foundation of China (Grant No. 10878012);the Outstanding Overseas Young Chinese Scholarship, and the Laboratory of Particle Astrophysics, Institute of High Energy Physics, CASS

摘　　要：The diffuse interstellar bands(DIBs) are a large number of absorption bands that are superposed on the interstellar extinction curve and are of interstellar origin. Since the discovery of the first two DIBs in the 1920s,the exact nature of DIBs still remains unclear. This article reviews the history of the detections of DIBs in the Milky Way and external galaxies,the major observational characteristics of DIBs,the correlations or anti-correlations among DIBs or between DIBs and other interstellar features(e.g. the prominent 2175 Angstrom extinction bump and the far-ultraviolet extinction rise),and the proposed candidate carriers. Whether they are also present in circumstellar environments is also discussed.The diffuse interstellar bands (DIBs) are a large number of absorption bands that are superposed on the interstellar extinction curve and are of interstellar origin. Since the discovery of the first two DIBs in the 1920s, the exact nature of DIBs still remains unclear. This article reviews the history of the detections of DIBs in the Milky Way and external galaxies, the major observational characteristics of DIBs, the correlations or anti-correlations among DIBs or between DIBs and other interstellar features (e.g. the prominent 2175 Angstrom extinction bump and the far-ultraviolet extinction rise), and the proposed candidate carriers. Whether they are also present in circumstellar environments is also discussed.

关 键 词：ASTROPHYSICS INTERSTELLAR MATTER INTERSTELLAR EXTINCTION DIFFUSE INTERSTELLAR band CIRCUMSTELLAR environment 

分 类 号：P141.5[天文地球—天体物理]