Open AccessNew planetary nebulae in the Galactic bulge region with l > 0°– II
Author(s) -
Boumis P.,
Akras S.,
Xilouris E. M.,
Mavromatakis F.,
Kapakos E.,
Papamastorakis J.,
Goudis C. D.
Publication year - 2006
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2006.10048.x
Subject(s) - physics , bulge , planetary nebula , astrophysics , doubly ionized oxygen , astronomy , line (geometry) , spectral line , emission spectrum , stars , mathematics , geometry
The presentation of new results from an [O iii ] 5007‐Å 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 Hα+[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.