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PMAS observations at the Calar Alto 3.5m Teleskop: Measuring the diffuse ionized gas in galaxies

PMAS observations at the Calar Alto 3.5m Teleskop: Measuring the diffuse ionized gas in galaxies
Calar Alto 3.5m 望远镜的 PMAS 观测：测量星系中的扩散电离气体
批准号：
418526966
负责人：
Professor Dr. Martin Matthias Roth
金额：
$0.0万
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：
2018
资助国家：
德国
项目状态：
已结题
起止时间：
2017-12-31 至 2018-12-31
来源：
https://gepris.dfg.de/gepris/projekt/418526966?language=en
关键词：
PMASobservationsCalarAlto3.5m

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中文摘要
翻译
该项目打算对附近星系的低Halpha表面亮度区域进行深入的PMAS观测，以揭示扩散电离气体(DIG)成分的性质，这种成分通常被归因于从HII区域泄漏的莱曼连续辐射。最近在VLT使用MUSE仪器获得的证据可疑地指出，DIG可能是激波激发的来源，而不是光致电离。我们将利用PMAS对低强度发射的高效率，在附近几个星系中绘制出靠近和远离发光HII区的区域，以便限制在Ha，Hb，[Oi]，[OII][OIII]，[NiI]，[Sii]中观察到的可能的电离原因。
英文摘要
The project intends to perform deep PMAS observations of low Halpha surface brightness regions in nearby galaxies to shed light on the nature of the diffuse ionized gas (DIG) component that has often been attributed to Lyman continuum radiation leaking from HII regions. Recent evidence obtained with the MUSE instrument at the VLT is suspiciously pointing to a possible shock excitation origin of the DIG rather than photoionization. We shall utilize the high efficiency of PMAS for low intensity emission to map out regions close to and farther away from luminous HII regions in several nearby galaxies in order to constrain the likely cause for ionization as observable in Ha, Hb, [OI],[OII][OIII],[NII],[SII].
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会议论文
PMAS observations at the Calar Alto 3.5m Teleskop: Measuring the diffuse ionized gas in galaxies
PMAS observing campaign at Calar Alto 3.5m Telescope "Ionised haloes in the Lyman Alpha Reference Sample"
Measuring the diffuse ionized gas in galaxies
PMAS observing campaign at Calar Alto 3.5m Telescope "Initial conditions for Lyman-alpha radiative transfer in galaxies"
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