我们研究了一个未记录的大型半透明云，通过SHASSA（南部H-Alpha巡天图集）调查中的增强辐射检测到。我们考虑是否可以解释其多余的表面亮度的光散射的尘埃颗粒在云中，或是否需要从原位电离气体的排放。此外，我们的目标是确定尘埃的温度，云的质量及其可能的恒星形成活动。我们比较观测到的H-α表面亮度的云与预测的辐射转移模型。我们使用WHAM（威斯康星州的H-阿尔法映射器）调查作为银河系的H-阿尔法星际辐射场照亮云的来源。通过云的视觉消光是使用2 MASS J，H和K波段测光得出的。我们使用远红外ISOSS（ISO偶然调查），IRAS和DIRBE数据来研究尘埃的热辐射。LAB（The Leiden/Argentine/Bonn Galactic HI Survey）用于研究与云有关的21 cm HI辐射。对银河弥漫H-α辐射的辐射转移计算表明，云的表面亮度可以完全由云中尘埃粒子散射的辐射来解释。透过云层的最大视消光约为1.2等。该云团伴随有21 cm的HI辐射，速度约为-9km/s。星云的总质量约为550-1000太阳质量。在这片星云中没有恒星形成的迹象。根据依巴谷卫星的数据，云的距离估计约为100 pc。
英文摘要：
We study an undocumented large translucent cloud, detected by means of its enhanced radiation on the SHASSA (Southern H-Alpha Sky Survey Atlas) survey. We consider whether its excess surface brightness can be explained by light scattered off the dust grains in the cloud, or whether emission from in situ ionized gas is required. In addition, we aim to determine the temperature of dust, the mass of the cloud, and its possible star formation activity. We compare the observed H-alpha surface brightness of the cloud with predictions of a radiative transfer model. We use the WHAM (Wisconsin H-Alpha Mapper) survey as a source for the Galactic H-alpha interstellar radiation field illuminating the cloud. Visual extinction through the cloud is derived using 2MASS J, H, and K band photometry. We use far-IR ISOSS (ISO Serendipitous Survey), IRAS, and DIRBE data to study the thermal emission of dust. The LAB (The Leiden/Argentine/Bonn Galactic HI Survey) is used to study 21cm HI emission associated with the cloud. Radiative transfer calculations of the Galactic diffuse H-alpha radiation indicate that the surface brightness of the cloud can be explained solely by radiation scattered off dust particles in the cloud. The maximum visual extinction through the cloud is about 1.2mag. The cloud is found to be associated with 21cm HI emission at a velocity of about -9 km/s. The total mass of the cloud is about 550-1000 solar masses. There is no sign of star formation in this cloud. The distance of the cloud is estimated from the Hipparcos data to be about 100 pc.
Inverse Raman scattering and the diffuse interstellar bands: an exploration of the systemic interconnections between spontaneous and inverse Raman scattering and extended red emission, Red Rectangle bands, and diffuse interstellar bands
The Circumgalactic Medium of Extreme Emission Line Galaxies at z ~ 2: Resolved Spectroscopy and Radiative Transfer Modeling of Spatially Extended Lyman-alpha Emission in the KBSS-KCWI Survey
本研究通过 KCWI 积分场观测和辐射转移模拟，揭示了 z~2 极端发射线星系中延展 Lyα 发射的径向变化，提出团块状多相外流模型，调和了外流速度测量，并指出非径向运动和外晕 HI 柱密度变化。
Lyman-alpha emission at the end of reionization: line strengths and profiles from MMT and JWST observations at z~5-6
Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）；MIT Kavli Institute for Astrophysics and Space Research（麻省理工学院卡弗里天体物理与空间研究所）；Departement d’Astronomie, University of Geneva（日内瓦大学天文学系）；Kavli Institute for Cosmology, University of Cambridge（剑桥大学卡弗里宇宙学研究所）；Cavendish Laboratory, University of Cambridge（剑桥大学卡文迪许实验室）
K-DRIFT Science Theme: Galactic Cirrus Clouds and Circumgalactic Medium
Korea Astronomy and Space Science Institute（韩国天文学与空间科学研究所）；Department of Astronomy and Space Science, University of Science and Technology, Korea（韩国科学技术大学天文与空间科学系）；Korea Institute for Advanced Study（韩国高等研究院）
