We present the discovery of a new planetary nebula from the IPHAS survey. The remarkable morphology of its inner regions, which display a bright knotty ring...
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PublicaciónThe Necklace planetary nebula: equatorial and polar outflows from a post-common-envelope system
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PublicaciónThe Necklace: equatorial and polar outflows from the binary central star of the new planetary nebula IPHASX J194359.5+170901
IPHASX J194359.5+170901 is a new high-excitation planetary nebula with remarkable characteristics. It consists of a knotty ring expanding at a speed of 28 km s...
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PublicaciónThe Onset of Photoionization in Post-AGB Stars
During the post-AGB phase the dust shell detaches from the central star and dust temperatures varies between 100 and 200 K. In order to study the onset of photo...
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PublicaciónThe origin of the most luminous Planetary Nebulae
As part of a systematic effort to characterize the properties and progenitors of the most luminous planetary nebulae (PNe), we obtained a sample among the...
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PublicaciónThe origin of the planetary nebula M 1-16. A morpho-kinematic and chemical analysis
We investigated the origin of the Planetary Nebula (PN) M 1-16 using narrow-band optical imaging, and high- and low-resolution optical spectra to perform a...
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PublicaciónThe Origins of Planetary Nebulae in the Inner and Outer Disks of M 31
The planetary nebulae (PNe) of M 31 are receiving considerable attention as probes of its structure and chemical evolution in a galactic environment that is...
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PublicaciónThe outflow structure of NGC 6537.
We present high and low resolution spectroscopy and narrow-band imaging of the unusual bipolar outflow source NGC 6537. As a consequence, we are able for the...
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PublicaciónThe peculiar planetary nebula M1-78.
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PublicaciónThe planetary nebula IC 4776 and its post-common-envelope binary central star
We present a detailed analysis of IC 4776, a planetary nebula displaying a morphology believed to be typical of central star binarity. The nebula is shown to...