Binary stars as the key to understanding planetary nebulae
D Jones, HMJ Boffin - Nature Astronomy, 2017 - nature.com
Planetary nebulae are traditionally considered to represent the final evolutionary stage of all
intermediate-mass stars (∼ 0.7–8 M☉). Recent evidence seems to contradict this picture. In …
intermediate-mass stars (∼ 0.7–8 M☉). Recent evidence seems to contradict this picture. In …
Density biases and temperature relations for DESIRED H ii regions
JE Méndez-Delgado, C Esteban… - Monthly Notices of …, 2023 - academic.oup.com
We present a first study based on the analysis of the DEep Spectra of Ionized REgions Data
base (DESIRED). This is a compilation of 190 high signal-to-noise ratio optical spectra of …
base (DESIRED). This is a compilation of 190 high signal-to-noise ratio optical spectra of …
Nebular spectroscopy: a guide on H ii regions and planetary nebulae
M Peimbert, A Peimbert… - Publications of the …, 2017 - iopscience.iop.org
We present a tutorial on the determination of the physical conditions and chemical
abundances in gaseous nebulae. We also include a brief review of recent results on the …
abundances in gaseous nebulae. We also include a brief review of recent results on the …
MUSE spectroscopy of planetary nebulae with high abundance discrepancies
J García-Rojas, C Morisset, D Jones… - Monthly Notices of …, 2022 - academic.oup.com
We present MUSE deep integral-field unit spectroscopy of three planetary nebulae (PNe)
with high-abundance discrepancy factors (ADF> 20): NGC 6778, M 1–42, and Hf 2–2. We …
with high-abundance discrepancy factors (ADF> 20): NGC 6778, M 1–42, and Hf 2–2. We …
Confirmation of the link between central star binarity and extreme abundance discrepancy factors in planetary nebulae
It has recently been noted that there seems to be a strong correlation between planetary
nebulae with close binary central stars and highly enhanced recombination line …
nebulae with close binary central stars and highly enhanced recombination line …
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 …
NGC 6153: reality is complicated
MG Richer, A Arrieta, L Arias… - The Astronomical …, 2022 - iopscience.iop.org
We study the kinematics of emission lines that arise from many physical processes in NGC
6153 based upon deep, spatially resolved, high-resolution spectra acquired with the UVES …
6153 based upon deep, spatially resolved, high-resolution spectra acquired with the UVES …
MUSE spectroscopy of the high abundance discrepancy planetary nebula NGC 6153
Context. The abundance discrepancy problem in planetary nebulae (PNe) has long puzzled
astronomers. NGC 6153, with its high abundance discrepancy factor (ADF~ 10), provides a …
astronomers. NGC 6153, with its high abundance discrepancy factor (ADF~ 10), provides a …
Inclined jets inside a common envelope of a triple stellar system
R Schreier, S Hillel, N Soker - Monthly Notices of the Royal …, 2019 - academic.oup.com
We conduct a three-dimensional hydrodynamical simulation to study the interaction of two
opposite inclined jets inside the envelope of a giant star, and find that the jets induce many …
opposite inclined jets inside the envelope of a giant star, and find that the jets induce many …
Planetary nebulae that cannot be explained by binary systems
E Bear, N Soker - The Astrophysical Journal Letters, 2017 - iopscience.iop.org
We examine the images of hundreds of planetary nebulae (PNe) and find that for about one
in six PNe the morphology is too" messy" to be accounted for by models of stellar binary …
in six PNe the morphology is too" messy" to be accounted for by models of stellar binary …