AndroPASS - survey for PNe in the central kpc of M31

AndroPASS - M31 中央 kpc 中的 PNe 调查

• 批准号: 162699783
• 负责人: Professor Dr. Martin Matthias Roth
• 金额: --
• 依托单位: Leibniz-Institut für Astrophysik Potsdam (AIP)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/162699783?language=en
• 关键词: AndroPASS; survey; PNe; central; kpc

Extragalactic Planetary Nebulae (XPN) have recently become of interest for studies of stellarpopulations and chemical evolution in external galaxies. Next to supergiant stars, they offera unique possibility for spectroscopic studies of individual stars in nearby galaxies — in factthey present the only way to look into the chemical composition of low-intermediate massstars with present day instrumentation. Although XPN are relatively easy to detect in the[O III] A5007 emission line, the spectrophotometry of the fainter diagnostic lines is extremelydifRcult. We will use the unique capabilities of PMAS for a competitive spectrophotometricsurvey of faint background-limited XPN in the central kpc of M31.

河外行星状星云（XPN）是近年来研究星系外恒星星族和化学演化的热点。除了超巨星之外，它们为附近星系中单个恒星的光谱研究提供了独特的可能性-事实上，它们是用现代仪器研究中低质量恒星化学成分的唯一方法。虽然XPN在[O III] A5007发射线上相对容易检测，但较暗的诊断线的分光光度法非常困难。我们将利用PMAS的独特能力，对M31中央kpc的微弱背景有限XPN进行有竞争力的光谱测量。