Title of article :
Individual Distances for a Sample of Planetary Nebulae
Author/Authors :
Ali, A. King Abdulaziz University - Faculty of Science - Astronomy Department, Saudi Arabi , Snaid, S. King Abdulaziz University - Faculty of Science - Astronomy Department, Saudi Arabia , Basurah, H.M. King Abdulaziz University - Faculty of Science - Astronomy Department, Saudi Arabia
Abstract :
This paper is addressed to the important problem in the fieldof planetary nebulae research, the distances determination. We haveapplied one of the most powerful individual methods “Reddening-Distance method” to determine the distances to eleven planetarynebulae. There are four objects in our sample belong to (or towards)the Galactic bulge. Most of our objects are not well known planetarynebulae with unknown distances. To our knowledge, we have derivedthe distances for the first time to six planetary nebulae. The distancefor the other five objects are compared with the available statisticaland individual data in the literature. The derived distances for thissmall sample will increase the limited number of individual distancesknown for planetary nebulae. The essential nebular parameters aredetermined for the sample
Keywords :
Planetary nebulae: individual distance – nebular parameters
Journal title :
Journal of King Abdulaziz University : Science
Journal title :
Journal of King Abdulaziz University : Science