Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/119414
59 Visitors62 Hits0 Downloads
400 new planetary nebulae in the galactic bulge
International Astronomical Union Symposium (234th : 2006) (3 - 7 April 2006 : Hawaii)
Barlow, Michael J. and Méndez, Roberto H.. Planetary nebulae in our galaxy and beyond : proceedings of the 234th symposium of the International Astronomical Union held in Waikoloa Beach, Hawaii, USA April 3-7, 2006, Vol. 2, p.355-356
About 500 MASH(Macquarie/AAO/Strasbourg Hα planetary nebula project) PNe were discovered towards the galactic bulge (Parker et al. 2006). For 405 MASH PNe with a diameter < 35 arcsec, we obtain surface brightness, diameter and dynamical age of the nebulae. From line intensity ratios of 133 GBPN observed with the 6dF device, we obtain their density and ionized mass, and their central star temperatures. We discover 15 bipolar and/or nitrogen-rich GBPNe having probably massive stellar progenitors (Peyaud, 2005).