8 citations · 20 across the 7 of their papers we have counts for
7 papers
The heart of Sakurai's Object revealed by ALMA
Daniel Tafoya, Peter A. M. van Hoof, Jesus A. Toala +7
We present high angular-resolution observations of Sakurai's object using the Atacama Large Millimeter Array, shedding new light on its morpho-kinematical structure. The millimetre…
Recombination of hot ionized nebulae: The old planetary nebula around V4334 Sgr (Sakurai's star)
Martin Reichel, Stefan Kimeswenger, Peter A. M. van Hoof +5
After becoming ionized, low-density astrophysical plasmas will begin a process of slow recombination. Models for this still have significant uncertainties. The recombination cannot…
HST/WFPC2 imaging analysis and Cloudy modelling of the multiple shell planetary nebulae NGC 3242, NGC 6826 and NGC 7662
Daniela Barria, Stefan Kimeswenger
We performed a detailed photometric analysis and photoionisation modelling on three high excitation multiple shell planetary nebulae: NGC 3242, NGC 6826 and NGC 7662. Archival HST/…
Emission line galaxies behind the planetary nebula IC 5148: Potential for a serendipity survey with archival data
S. Kimeswenger, D. Barria, W. Kausch +1
During the start of a survey program using FORS2 long slit spectroscopy on planetary nebulae (PN) and their haloes, we serendipitously discovered six background emission line galax…
Life after eruption - VI. Recovery of the old novae EL Aql, V606 Aql, V908 Oph, V1149 Sgr, V1583 Sgr and V3964 Sgr
C. Tappert, D. Barria, I. Fuentes Morales +3
We report on the recovery of the six old novae EL Aql, V606 Aql, V908 Oph, V1149 Sgr, V1583 Sgr and V3964 Sgr, using photometric and spectroscopic data. Analysing several propertie…
Optical spectroscopy of DPVs and the case of LP Ara
Ronald E. Mennickent, Darek Graczyk, Zbigniew Kolaczkowski +3
We present preliminary results of our spectroscopic campaign of a group of intermediate mass interacting binaries dubbed "Double Periodic Variables" (DPVs), characterized by orbita…