Results 101 to 110 of about 207,371 (176)
Winds, Bubbles, and Outflows in Planetary Nebulae
, 2003 The aim of this work is to highlight the contributions that John Dyson has made to the study of the interstellar medium in general and, in particular, to the field of planetary nebulae.
J. A. Lopez
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A morphological study of planetary nebulae
, 1998 We have produced simulated images of 110 planetary nebulae using the ellipsoidal shell model. This process has allowed us to remove the projection effects from the morphological classification of planetary nebulae and has provided quantitative measures ...
C. Y. Zhang, Kwok, S, S. Kwok, Zhang, CY
core +1 more source
PyEMILI: A New Generation Computer-aided Spectral Line Identifier
The Astrophysical Journal Supplement SeriesDeep high-dispersion spectroscopy of Galactic photoionized gaseous nebulae, mainly planetary nebulae and H ii regions, has revealed numerous emission lines.
Zhijun Tu +3 more
doaj +1 more source
MILAN Sky Survey, a dataset of raw deep sky images captured during one year with a Stellina automated telescope. [PDF]
Data Brief, 2023 Parisot O +5 more
europepmc +1 more source
Herschel observations of planetary nebulae
, 2016 This article presents an overview of the published results for planetary nebulae based on images and spectroscopy from the PACS, SPIRE, and HIFI instruments on board the Herschel satellite.
Griet C. Van de Steene
core +1 more source
The Secular Evolution of Planetary Nebula IC 418 and Its Implications for Carbon Star Formation
The Astrophysical Journal LettersThe rate of stellar evolution can rarely be measured in real time. The fastest evolution (excluding event-driven evolution), where stars may evolve measurably over decades, is during the post–Asymptotic Giant Branch (AGB) phase. In this Letter we provide
Albert A. Zijlstra, Quentin A. Parker
doaj +1 more source
The mystery of unidentified infrared emission bands. [PDF]
Astrophys Space Sci, 2022 Kwok S.
europepmc +1 more source
A survey for PAH emission in H II regions, planetary and proto-planetary nebulae [PDF]
, 1989 The results of a systematic investigation of polycyclic aromatic hydrocarbon (PAH) emission in H II regions, planetary nebulae (PN), and proto-planetary nebulae (PNN), are reported. Data is obtained from the low resolution spectra (LRS) of IRAS.
Cox, P., Demuizon, M., Lequeux, J.
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A study of four multipolar planetary nebulae in the Galactic bulge
Astronomy & AstrophysicsWe present infrared (IR) spectroscopic and optical morphological analyses of four multipolar young planetary nebulae (PNe) located in the Galactic bulge (GB) to investigate their dust characteristics and complex multi-lobed structures.
Wen Shi-Bo +5 more
doaj +1 more source
Polycyclic aromatic hydrocarbons and molecular hydrogen in oxygen-rich planetary nebulae: the case of NGC 6720. [PDF]
Mon Not R Astron Soc, 2016 Cox NL +4 more
europepmc +1 more source