| Full text | |
| Author(s): |
Escudero‚ A. V.
;
Costa‚ R. D. D.
;
Maciel‚ W. J.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Astronomy & Astrophysics; v. 414, n. 1, p. 211-221, Jan. 2004. |
| Field of knowledge: | Physical Sciences and Mathematics - Astronomy |
| Abstract | |
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. (AU) | |