First release of the IPHAS catalogue of new extended planetary nebulae

First release of the IPHAS catalogue of new extended planetary nebulae
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首次发布新扩展行星状星云 IPHAS 目录

DOI:
10.1093/mnras/stu1404
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发表时间:
2014
影响因子:
4.8
通讯作者:
Sabin L
Sabin L
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Sabin L

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我们提出了我们的搜索新的,扩展的行星状星云(PNe)的基础上仔细,系统的,视觉审查的成像数据从艾萨克牛顿望远镜光度Hα调查的北方银河平面(IPHAS)的第一个结果。新发现的PNe将有助于改善对这一重要的银河系天体群体的普查,这些天体是了解低质量到中等质量恒星后期演化的关键窗口。他们也将促进研究星系PN光度函数的暗端。IPHAS的灵敏度和覆盖范围允许在银河系平面中更大灭绝的区域和/或那些处于更高级进化状态的PNe中发现PNe,并且与一般银河系PN人口相比距离更远。使用一组新修订的光学诊断图,结合访问一个强大的,新的,多波长成像数据库,我们已经确定了159个真实的,可能的和可能的PNe的第一个目录发布。与以前的调查相比,IPHAS能够在银河系低纬度和朝向银河系Anticentre揭示PNE,这使得这次调查成为一个理想的工具,有助于提高我们对整个银河系PN人口的了解。
We present the first results of our search for new, extended planetary nebulae (PNe) based on careful, systematic, visual scrutiny of the imaging data from the Isaac Newton Telescope Photometric Hα Survey of the Northern Galactic plane (IPHAS). The newly uncovered PNe will help to improve the census of this important population of Galactic objects that serve as key windows into the late-stage evolution of low- to intermediate-mass stars. They will also facilitate study of the faint end of the ensemble Galactic PN luminosity function. The sensitivity and coverage of IPHAS allows PNe to be found in regions of greater extinction in the Galactic plane and/or those PNe in a more advanced evolutionary state and at larger distances compared to the general Galactic PN population. Using a set of newly revised optical diagnostic diagrams in combination with access to a powerful, new, multiwavelength imaging data base, we have identified 159 true, likely and possible PNe for this first catalogue release. The ability of IPHAS to unveil PNe at low Galactic latitudes and towards the Galactic Anticentre, compared to previous surveys, makes this survey an ideal tool to contribute to the improvement of our knowledge of the whole Galactic PN population.
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