The Hα surface brightness–radius relation: a robust statistical distance indicator for planetary nebulae
Measuring the distances to Galactic planetary nebulae (PNe) has been an intractable
problem for many decades. We have now established a robust optical statistical distance …
problem for many decades. We have now established a robust optical statistical distance …
[HTML][HTML] Planetary Nebulae Research: Past, Present, and Future
S Kwok - Galaxies, 2024 - mdpi.com
We review the evolution of our understanding of the planetary nebulae phenomenon and
their place in the scheme of stellar evolution. The historical steps leading to our current …
their place in the scheme of stellar evolution. The historical steps leading to our current …
Spectroscopic analysis tool for intEgraL fieLd unIt daTacubEs (satellite): case studies of NGC 7009 and NGC 6778 with MUSE
S Akras, H Monteiro, JR Walsh… - Monthly Notices of …, 2022 - academic.oup.com
Integral field spectroscopy (IFS) provides a unique capability to spectroscopically study
extended sources over a 2D field of view, but it also requires new techniques and tools. In …
extended sources over a 2D field of view, but it also requires new techniques and tools. In …
A catalogue of planetary nebulae chemical abundances in the Galactic bulge
In this paper, the third of a series of papers, we present well-determined chemical
abundances for 124 planetary nebulae (PNe) in the Galactic bulge from deep, long-slit …
abundances for 124 planetary nebulae (PNe) in the Galactic bulge from deep, long-slit …
Morpho-kinematic modeling of gaseous nebulae with shape
We present a powerful new tool to analyse and disentangle the 3-D geometry and kinematic
structure of gaseous nebulae. The method consists in combining commercially available …
structure of gaseous nebulae. The method consists in combining commercially available …
The Chandra Planetary Nebula Survey (CHANPLANS). II. X-ray emission from compact planetary nebulae
M Freeman, R Montez, JH Kastner… - The Astrophysical …, 2014 - iopscience.iop.org
We present results from the most recent set of observations obtained as part of the Chandra
X-ray observatory Planetary Nebula Survey (ChanPlaNS), the first comprehensive X-ray …
X-ray observatory Planetary Nebula Survey (ChanPlaNS), the first comprehensive X-ray …
Circumstellar atomic hydrogen in evolved stars
E Gérard, T Le Bertre - The Astronomical Journal, 2006 - iopscience.iop.org
We present new results of a spectroscopic survey of circumstellar HI in the direction of
evolved stars made with the Nançay Radiotelescope. The HI line at 21 cm has been …
evolved stars made with the Nançay Radiotelescope. The HI line at 21 cm has been …
Direct estimates of nitrogen abundance for Seyfert 2 nuclei
We derive the nitrogen and oxygen abundances in the narrow line regions (NLRs) of a
sample of 38 local () Seyfert 2 nuclei. For that, we consider narrow optical emission line …
sample of 38 local () Seyfert 2 nuclei. For that, we consider narrow optical emission line …
Dust distribution in planetary nebulae
RA Pignata, WA Weidmann, EO Schmidt… - Monthly Notices of …, 2024 - academic.oup.com
Planetary nebulae (PNe) have long been known to consist of gas, molecules, and dust. The
vast majority of the work in which properties of the dust of these objects are inferred were …
vast majority of the work in which properties of the dust of these objects are inferred were …
Distance mapping applied to four well-known planetary nebulae and a nova shell
S Gómez-Gordillo, S Akras… - Monthly Notices of the …, 2020 - academic.oup.com
Accurate distance estimates of astrophysical objects such as planetary nebulae (PNe), and
nova and supernova remnants, among others, allow us to constrain their physical …
nova and supernova remnants, among others, allow us to constrain their physical …