期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 367, 期 4, 页码 1551-1561出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2006.10048.x
关键词
surveys; planetary nebulae : general; Galaxy : bulge
The presentation of new results from an [O III] 5007-angstrom survey in a search for planetary nebulae (PNe) in the Galactic bulge is continued. A total of 60 objects, including 19 new PNe, have been detected in the remaining 34 per cent of the survey area, while 41 objects are already known. Deep H alpha+[N II] CCD images as well as low-resolution spectra have been acquired for these objects. Their spectral signatures suggest that the detected emission originates from photoionized nebulae. In addition, absolute line fluxes have been measured and the electron densities are given. Accurate optical positions and optical diameters are also determined.
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