Verification of H2 emission candidates from GLIMPSE360 - Preparatory PANIC narrow-band imaging using the Calar Alto 2.2-m telescope

使用 Calar Alto 2.2 米望远镜验证 GLIMPSE360 的 H2 发射候选者 - 预备性 PANIC 窄带成像

• 批准号: 315506909
• 负责人: Dr. Bringfried Stecklum
• 金额: --
• 依托单位: Thüringer Landessternwarte Tautenburg (TLS) - Karl-Schwarzschild-Observatorium
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/315506909?language=en
• 关键词: Verification; H2; emission; candidates; GLIMPSE360

The GLIMPSE survey of the inner Galaxy revealed many objects with 4.5 micron excess due to emission from molecular hydrogen (H2). These comprise YSO outflows, (proto-)planetary nebulae, HII regions, and SN remnants. The follow-up GLIMPSE360 survey, a SPITZER warm mission, yielded a full coverage of the Galactic plane, but just in the 3.6 and 4.5 micron bands. Although a large [3.6 - 4.5] color may hint at emission from H2, it could be also caused by a very red continuum. This shall be distinguished by ground-based follow-up imaging in the H2 1-0 S(1) line using PANIC. Before attempting this large observational effort, we applied at the Calar Alto observatory to conduct a feasibility study first. This observing application was accepted with a very good grade (A). In order to cover the travel expenses for the observing run, the present proposal asks for funding from the Deutsche Forschungsgemeinschaft.

内星系的一瞥巡天发现，由于分子氢（H2）的发射，许多物体都有4.5微米的过剩。这些包括YSO流出物、（原）行星状星云、HII区域和SN残余物。随后的GLIMPSE360调查，斯皮策温暖任务，获得了银河系平面的完整覆盖，但仅在3.6和4.5微米波段。虽然大的[3.6 - 4.5]颜色可能暗示来自H2的发射，但它也可能是由一个非常红色的连续体引起的。这应该通过使用PANIC在H2 -0 S(1)线的地基后续成像来区分。在进行这项大规模的观测工作之前，我们首先向卡拉阿尔托天文台申请进行可行性研究。这个观察应用程序以非常好的成绩(a)被接受。为了支付观察活动的旅费，本提案要求德意志研究委员会提供经费。

项目成果

Disk-mediated accretion burst in a high-mass young stellar object

• DOI: 10.1038/nphys3942
• 发表时间: 2016-11
• 期刊: Nature Physics
• 影响因子: 19.6
• 作者: A. C. O. Garatti;B. Stecklum;R. G. Lopez;J. Eisloffel;T. Ray;A. Sanna;R. Cesaroni;C. Walmsley