Nebular abundances of southern symbiotic stars

Abstract

We have calculated relative elemental abundances for a sample of 43 symbiotic stars. Helium abundances and the relative elemental abundances N/O, Ne/O, Ar/O were derived from new spectra collected in the optical range through low dispersion spectroscopy. The He ionic abundances were derived taking into account self-absorption effects in Balmer lines. We found that the symbiotic stars in the galactic bulge have heavy element abundances showing the same wide distribution as other bulge objects. In the galactic disk, the symbiotic stars follow the abundance gradient as derived from different kinds of objects.

12 pages, 6 figures, A&A - accepted

References in corpus (1)

• New abundances of planetary nebulae in the Galactic Bulge

Cited by in corpus (22)

• X-ray Emissions from Accreting White Dwarfs: a Review
• A Library of Integrated Spectra of Galactic Globular Clusters
• Symbiotic stars in X-rays
• Formation & evolution of the Galactic bulge: constraints from stellar abundances
• Symbiotic stars and other Halpha emission line stars towards the Galactic Bulge
• A morpho-kinematic and spectroscopic study of the bipolar nebulae: M 2-9, Mz 3, and Hen 2-104
• X-ray and UV emission from the recurrent nova RS Ophiuchi in quiescence: Signatures of accretion and shocked gas
• Distinguishing between symbiotic stars and planetary nebulae
• Evolution of the Symbiotic Nova PU Vul -- Outbursting White Dwarf, Nebulae, and Pulsating Red Giant Companion
• The Distances of the Galactic Novae
• X-ray, UV, and optical observations of the accretion disk and boundary layer in the symbiotic star RT Cru
• Discovery of five new Galactic symbiotic stars in the VPHAS+ survey
• Kn 26, a New Quadrupolar Planetary Nebula
• Discovery of new low-excitation planetary nebulae
• A Light-Curve Model of the Symbiotic Nova PU Vul (1979) -- A Very Quiet Explosion with Long-Lasted Flat Peak
• Symbiotic stars in X-rays II: faint sources detected with XMM-Newton and Chandra
• A Profile Analysis of Raman-scattered O VI Bands at 6825 Å and 7082 Å in Sanduleak's Star
• CXO J004318.8+412016, a steady supersoft X-ray source in M 31
• Formation of a disk-structure and jets in the symbiotic prototype Z And during its 2006-2010 active phase
• SDSS J083253.18+064316.7: one strange object with double-peaked narrow Hαbut single-peaked narrow Hβ
• V4141 Sgr: Outflows and repeated outbursts
• Optical emission line spectra of symbiotic binaries