Discovery of Eclipsing Binary Central Stars in the Planetary Nebulae M 3-16, H 2-29 and M 2-19

Abstract

Progress in understanding the formation and evolution of planetary nebulae (PN) has been restricted by a paucity of well-determined central star masses. To address this deficiency we aim to (i) significantly increase the number of known eclipsing binary central stars of PN (CSPN), and subsequently (ii) directly obtain their masses and absolute dimensions by combining their light-curve parameters with planned radial velocity data. Using photometric data from the third phase of the Optical Gravitational Lensing Experiment (OGLE) we have searched for periodic variability in a large sample of PN towards the Galactic Bulge using Fourier and phase-dispersion minimisation techniques. Among some dozen periodically variable CSPN found, we report here on three new eclipsing binaries: M 3-16, H 2-29 and M 2-19. We present images, confirmatory spectroscopy and light-curves of the systems.

arXiv comment4 pages, 2 figures, accepted for publication in A&A

References in corpus (7)

• The Anglo-Australian Observatory's 2dF Facility
• MASH-II: More Planetary Nebulae from the AAO/UKST HαSurvey
• Binary central stars of PN discovered through photometric variability. I. What we know and what we would like to find out
• Indications of a Large Fraction of Spectroscopic Binaries Among Nuclei of Planetary Nebulae
• Planetary nebulae with emission-line central stars
• Angular diameters, fluxes and extinction of compact planetary nebulae: further evidence for steeper extinction towards the Bulge
• Binary central stars of planetary nebulae

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