A group of suspected protostars in a dark cloud northwest of the young (~2?Myr) cluster Berkeley 59 and two sources in a pillar south of the cluster have been studied in order to determine their evolutionary stages and ascertain whether their formation was triggered by Berkeley 59. Narrowband near-infrared observations from the Observatoire du Mont Mégantic, 12CO (J = 3-2) and SCUBA-2 (450 and 850 μm) observations from the JCMT, 2MASS, and WISE images, and data extracted from the IPHAS survey catalog were used. Of 12 sources studied, two are Class I objects, while three others are flat/Class II, one of which is a T Tauri candidate. A weak CO outflow and two potential starless cores are present in the cloud, while the pillar possesses substructure at different velocities, with no outflows present. The CO spectra of both regions show peaks in the range v LSR = –15 to –17 km s–1, which agrees with the velocity adopted for Berkeley 59 (–15.7 km s–1), while spectral energy distribution models yield an average interstellar extinction AV and distance of 15 ± 2 mag and 830 ± 120 pc, respectively, for the cloud, and 6.9 mag and 912?pc for the pillar, indicating that the regions are in the same vicinity as Berkeley 59. The formation of the pillar source appears to have been triggered by Berkeley 59. It is unclear whether Berkeley 59 triggered the association's formation.
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机译：为了确定它们的演化阶段并确定它们的形成是否是由触发的，研究了一组位于年轻（〜2？Myr）星团伯克利59西北的乌云西北部的疑似原恒星，以及该星团以南的一个支柱中的两个来源。伯克利（Berkeley）59.来自墨西哥蒙特山观测站，12CO（J = 3-2）和SCUBA-2（450和850μm）的窄带近红外观测，分别来自JCMT，2MASS和WISE影像，以及从IPHAS中提取的数据使用调查目录。在研究的12个来源中，两个是I类物体，而其他三个是平面/ II类物体，其中一个是T Tauri候选者。云中存在弱的CO流出和两个潜在的无星核，而柱子具有不同速度的子结构，不存在流出。两个区域的CO光谱均在v LSR = –15至–17 km s–1范围内显示峰值，这与伯克利59（–15.7 km s–1）所采用的速度一致，而光谱能量分布模型得出的平均值为星际消亡AV和云的距离分别为15±2 mag和830±120 pc，柱子的距离为6.9 mag和912？pc，表明这些区域与伯克利59处于同一附近。支柱来源似乎是由伯克利59号触发的。目前尚不清楚伯克利59号是否触发了该协会的成立。
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