论文标题
Grantecan光谱观测和确认北银河平面中的行星星云候选者
Grantecan spectroscopic observations and confirmations of Planetary Nebulae candidates in the Northern Galactic Plane
论文作者
论文摘要
我们提出了10 m望远镜（GTC）的GranteCan光谱镜确认，对我们的Pro-AM协作在Int光度h $_α$调查中很大程度上发现了55个微弱的行星星云（PNE）候选候选者。我们确认其中46个为“ true”（t），4为“可能”（l）和5个为“可能的”（P）PNE，包括5个新的PNE Central Star（CSPN）发现。这是从62名新候选人的观察结果中产生的最大PN发现成功率为89％。 IPHAS的灵敏度和较长的波长覆盖范围可以在更大的灭绝区域，在这些较低的银河纬度区域中发现PNE，包括与先前已知的银河pne相比，在更先进的进化状态和较大的距离处发现了PNE。我们使用一组观察到的特征和光学发射线诊断来确认候选者。血浆特性已经使用pyneb以一种自洽的方式确定。我们强大的多波长数据库“哈希”的功能为这项工作提供了促进（香港，澳大利亚天文天文台，斯特拉斯堡天文台天文台H-alpha行星星云目录），该仪表率是已知的成像，光谱，光谱和其他相关数据，用于所有银色的t，l，p pne和其他相关数据。在可能的情况下，为这些新的PNE提供了红粉，校正的径向速度以及PNE电子密度和温度估计。
We present Grantecan 10 m telescope (GTC) spectroscopic confirmations of 55 faint Planetary Nebulae (PNe) candidates discovered largely in the INT Photometric H$_α$ Survey of the Northern Galactic Plane (IPHAS) by our pro-am collaboration. We confirm 46 of them as 'True' (T), 4 as 'Likely' (L) and 5 as 'Possible' (P) PNe and including 5 new PNe central star (CSPN) discoveries. This was from observations of 62 new candidates yielding a maximum PN discovery success rate of 89%. The sensitivity and longer wavelength coverage of IPHAS allows PNe to be found in regions of greater extinction and at these lower Galactic latitudes, including PNe in a more advanced evolutionary state and at larger distances compared to previously known Galactic PNe. We use an holistic set of observed characteristics and optical emission-line diagnostics to confirm candidates. Plasma properties have been determined in a self-consistent way using PyNeb. This work is facilitated by the functionality of our powerful, multi-wavelength database 'HASH' (Hong Kong, Australian Astronomical Observatory, Strasbourg Observatory H-alpha Planetary Nebula catalogue) that federates known imaging, spectroscopy and other pertinent data for all Galactic T, L, P PNe and the significant numbers of mimics. Reddenings, corrected radial velocities and PNe electron density and temperature estimates are provided for these new PNe where possible.
