New abundances of planetary nebulae in the Galactic Bulge

被引：47

作者：

Escudero, AV ^{[1
]}

Costa, RDD ^{[1
]}

Maciel, WJ ^{[1
]}

机构：

[1] USP, IAG, Dept Astron, BR-01060970 Sao Paulo, Brazil

来源：

ASTRONOMY & ASTROPHYSICS | 2004年 / 414卷 / 01期

关键词：

planetary nebulae : general; galaxies : bulges; techniques : spectroscopic;

D O I：

10.1051/0004-6361:20031625

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

New observations and derived chemical abundances are reported for a sample of 57 bulge planetary nebulae (PN). Together with our previous results, a total of over a hundred objects have been analyzed, which constitute one of the largest samples of bulge nebulae studied under homogeneous conditions, including equipment and reduction procedures. In general, our data show a good agreement with some recent results in the literature, in the sense that the average abundances of bulge PN are similar to those from disk objects, however showing a larger dispersion.

引用

页码：211 / U21

页数：18

共 38 条

[1]

Acker A., 1992, ESO STRASBOURG CATAL

[2] Nebular abundance errors [J].