首页 | 本学科首页   官方微博 | 高级检索  
     检索      


FLAIR observations of planetary nebulae in the Large Magellanic Cloud
Authors:Morgan  & Parker
Institution:Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ,;Anglo-Australian Observatory, Coonabarabran, NSW 2357, Australia
Abstract:This paper presents new observations of 97 planetary nebulae in the Large Magellanic Cloud (LMC) obtained using the FLAIR system on the UK 1.2-m Schmidt Telescope. These nebulae are mostly at the fainter end of the known population, and about 75 per cent have not been observed before in spectroscopic mode. Radial velocities have been measured using cross-correlation techniques, and represent an increase of 66 per cent in the sample of LMC planetary nebulae with known radial velocities. The major line ratios are given, and are analysed in conjunction with published data. One-quarter of the faint nebulae are Type I objects with very strong N II ] and S II ] lines; most of the other faint nebulae have low density, low excitation and relatively strong S II ] lines.
Keywords:planetary nebulae: general  Magellanic Clouds  
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号