New DSH planetary nebulae and candidates from optical and infrared surveys

[摘要] To date, the planetary nebula (PN) survey of the Deep Sky Hunters collaboration has led to the detection of more than 250 previously unknown candidate planetary nebulae (PNe). About 60% of them were found during the past two years and are expected to be true, likely or possible PNe because careful vetting has already thrown out more doubtful objects. The majority of the new PN candidates are located within the boundaries of the SHS and IPHAS Ha surveys and were discovered by combining MIR data from the WideField Infrared Survey Explorer (WISE) with optical data from the IPHAS, SHS and DSS surveys, and UV data from the Galaxy Evolution Explorer(GALEX).

[发布机构] Deep Sky Hunters Collaboration, Hong Kong^1;Department of Physics, University of Hong Kong, Hong Kong, Hong Kong^2;Giant Magellan Telescope/Carnegie Observatories, Pasadena; CA; 91101, United States^3;Observatoire Astronomique de Strasbourg, 11 rue de l'Université, Strasbourg; F-67000, France^4;Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Santiago, Chile^5;National Optical Astronomy Observatory, 950 N. Cherry Avenue, Tucson; AZ; 85719, United States^6;Department of Physics and Astronomy, Macquarie University, Sydney; NSW; 2109, Australia^7;University of Western Sydney, Locked Bag 1797, Penrith South DC; NSW; 1797, Australia^8;CHART32 Team, Germany^9

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Deep-sky;Galaxy evolution;Optical data;Planetary nebula;Planetary nebulae;Widefield infrared survey explorers