165 citations · 1.2k across the 77 of their papers we have counts for
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Planetary nebulae with Wolf-Rayet-type central stars -- III. A detailed view of NGC 6905 and its central star
V. M. A. Gómez-González, G. Rubio, J. A. Toalá +6
We present a multi-wavelength characterisation of the planetary nebula (PN) NGC 6905 and its [Wolf-Rayet]-type ([WR]) central star (CSPN) HD 193949. Our Nordic Optical Telescope (N…
First deep images catalogue of extended IPHAS PNe
L. Sabin, M. A. Guerrero, G. Ramos-Larios +8
We present the first instalment of a deep imaging catalogue containing 58 True, Likely and Possible extended PNe detected with the Isaac Newton Telescope Photometric H Survey (I…
Planetary nebulae with Wolf-Rayet-type central stars -- II. Dissecting the compact planetary nebula M2-31 with GTC MEGARA
J. S. Rechy-García, J. A. Toalá, S. Cazzoli +4
We present a comprehensive analysis of the compact planetary nebula M2-31 investigating its spectral properties, spatio-kinematical structure and chemical composition using GTC MEG…
On the contribution of the X-ray source to the extended nebular HeII emission in IZw18
C. Kehrig, M. A. Guerrero, J. M. Vilchez +1
Nebular HeII emission implies the presence of energetic photons (E54 eV). Despite the great deal of effort dedicated to understanding HeII ionization, its origin has remained…
Carbon dust in the evolved born-again planetary nebulae A30 and A78
J. A. Toalá, P. Jiménez-Hernández, J. B. Rodríguez-González +6
We present an infrared (IR) characterization of the born-again planetary nebulae (PNe) A30 and A78 using IR images and spectra. We demonstrate that the carbon-rich dust in A30 and…
Tomography of the unique on-going jet in the planetary nebula NGC 2392
M. A. Guerrero, S. Cazzoli, J. S. Rechy-Garcia +5
Jets (fast collimated outflows) are claimed to be the main shaping agent of the most asymmetric planetary nebula (PNe) as they impinge on the circumstellar material at late stages…