论文标题
W带滤波器对年轻的替代物体的新调查。 IC 348和Perseus Cloud中的Barnard 5
A Novel Survey for Young Substellar Objects with the W band Filter.V. IC 348 and Barnard 5 in the Perseus Cloud
论文作者
论文摘要
我们报告了年轻的星团IC 348和相邻的Barnard 5暗云中的替代物体的发现，这些云都位于珀尔修斯恒星形成综合体的东端。使用窄带成像，即，在1.45微米的吸水特征围绕滤波器的滤波器技术，即在1.45微米的吸水特征中以滤光度为中心，该技术可有效地检测水的底物对象，以滤波为中心。 Our spectroscopic observations confirm three brown dwarfs in IC 348. In addition, the source WBIS 03492858+3258064, reported in this work, is the first confirmed brown dwarf discovered toward Barnard 5. Together with the young stellar population selected via near- and mid-infrared colors using the Two Micron All Sky Survey and the Wide-field Infrared Survey Explorer, we diagnose the relation between具有相关分子云的恒星与替代物体。由遍布珀尔修斯地区的云成员的Gaia EDR3可视性和运动学分析，我们提出了附近OB协会影响的复合体的恒星形成场景。
We report the discovery of substellar objects in the young star cluster IC 348 and the neighboring Barnard 5 dark cloud, both at the eastern end of the Perseus star-forming complex. The substellar candidates are selected using narrowband imaging, i.e., on and off photometric technique with a filter centered around the water absorption feature at 1.45 microns, a technique proven to be efficient in detecting water-bearing substellar objects. Our spectroscopic observations confirm three brown dwarfs in IC 348. In addition, the source WBIS 03492858+3258064, reported in this work, is the first confirmed brown dwarf discovered toward Barnard 5. Together with the young stellar population selected via near- and mid-infrared colors using the Two Micron All Sky Survey and the Wide-field Infrared Survey Explorer, we diagnose the relation between stellar versus substellar objects with the associated molecular clouds. Analyzed by Gaia EDR3 parallaxes and kinematics of the cloud members across the Perseus region, we propose the star formation scenario of the complex under influence of the nearby OB association.
