EDP Sciences
Free access
Issue
A&A
Volume 414, Number 1, January IV 2004
Page(s) 211 - 221
Section Formation, structure and evolution of stars
DOI http://dx.doi.org/10.1051/0004-6361:20031625


A&A 414, 211-221 (2004)
DOI: 10.1051/0004-6361:20031625

New abundances of planetary nebulae in the Galactic Bulge

A. V. Escudero, R. D. D. Costa and W. J. Maciel

Departamento de Astronomia, IAG/USP, C.P. 3386, 01060-970 São Paulo - SP, Brasil
    e-mail: escudero@astro.iag.usp.br; maciel@astro.iag.usp.br
(Received 2 June 2003 / Accepted 29 September 2003)

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.


Key words: planetary nebulae: general -- galaxies: bulges -- techniques: spectroscopic

Offprint request: A. V. Escudero, roberto@astro.iag.usp.br

SIMBAD Objects



© ESO 2004

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access.

An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account.
    In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.