论文标题
Matlas对明亮星系的微弱郊区的调查
The MATLAS survey of faint outskirts of bright galaxies
论文作者
论文摘要
深层成像，即能够捕获非常低的表面亮度扩展物体的成像，是迅速增长的外层层次天文学领域。不仅可以发现新型的微弱物体，而且明亮星系的深层图像也非常有价值，因为它们揭示了过去星系碰撞的微弱迹象，即潮汐特征。可以利用这种“考古”记录来研究星系的形成方式。在Matlas的调查中，我们使用3.50万加拿大 - 法兰西 - 霍瓦伊望远镜获得了附近177个大规模椭圆形和胸膜星系的极为深刻的图像。在我们的贡献中，我们将介绍图像中看到的各种类型的物体和特征，例如潮汐特征，原本淬火的星系中的淡淡的星形区域，或我们自己的星系中的微弱尘埃云。最后，我们将在Milanković望远镜上介绍深刻的努力。
Deep imaging, that is imaging capable of capturing very low surface brightness extended objects, is a quickly growing field of extragalactic astronomy. Not only can new types of faint objects be discovered, but deep images of bright galaxies are very valuable, too, since they reveal faint signs of past galaxy collisions, the tidal features. Such "archeological" record can be exploited for investigating how galaxies formed. In the MATLAS survey, we obtained extremely deep images of 177 nearby massive elliptical and lenticular galaxies using the 3.5m Canada-France-Hawaii Telescope. In our contribution, we will present the various types of objects and features seen in our images, for example tidal features, faint star-forming regions in otherwise quenched galaxies, or faint dust clouds in our own Galaxy. Finally, we will introduce the deep-imaging efforts at the Milanković Telescope.
