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Rebirth of X-ray Emission from the Born-Again Planetary Nebula A 30
Rebirth X-ray Emission Born-Again Planetary Nebula
2012/2/23
The planetary nebula (PN) A 30 is believed to have undergone a very late thermal pulse resulting in the ejection of knots of hydrogen-poor material. Using multi-epoch HST images we have detected the a...
A 3D Photoionization Model of the Extreme Planetary Nebula NGC 6302
planetary nebulae: individual: NGC 6302, ISM: abundances
2011/10/13
We present a 3D photoionization model of the PN NGC 6302, one of the most complex objects of its kind. Our Mocassin model is composed of an extremely dense circumstellar disk and a large pair of diffu...
Physical Structure of the Planetary Nebula NGC 3242 from the Hot Bubble to the Nebular Envelope
Physical Structure Planetary Nebul Hot Bubble Nebular Envelope
2011/10/12
One key feature of the interacting stellar winds model of the formation of planetary nebulae (PNe) is the presence of shock-heated stellar wind confined in the central cavities of PNe. This so-called ...
The Halo and Rings of the Planetary Nebula NGC 40 in the Mid-Infrared
the Planetary Nebula NGC 40 the Mid-Infrared
2011/1/10
We present imaging and spectroscopy of NGC 40 acquired using the Spitzer Space Telescope (Spitzer), and the Infrared Space observatory (ISO). These are used to investigate the nature of emission from ...
SMC SMP 24: A newly radio-detected planetary nebula in the small magellanic cloud
SMC SMP 24 newly radio-detected planetary nebula
2011/1/10
In this paper we report new radio-continuum detection of an extragalactic PN: SMC SMP 24. We show the radio-continuum image of this PN and present the measured radio data. The newly reduced radio obse...
Planetary Nebula Surveys: Past, Present and Future
Stars post-AGB – planetary nebulae general – surveys general
2010/11/10
In this review we cover the detection, identification and astrophysical importance of planetary nebulae (PN). The legacy of the historic Perek & Kohoutek and Acker et al. catalogues is briefly covered...
An Optical-Infrared Study of the Young Multipolar Planetary Nebula NGC 6644
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/28
High-resolution HST imaging of the compact planetary nebula NGC 6644 has revealed two pairs of bipolar lobes and a central ring lying close to the plane of the sky. From mid-infrared imaging obtained ...
A new [Oiii] \lamda5007 Å Galactic Bulge Planetary Nebula Luminosity Function
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/27
The Planetary Nebulae Luminosity Function (PNLF) describes the collective luminosity evolution for a given population of Planetary Nebulae (PN). A major paradox in current PNLF studies is in the unive...
Proper motions of the ansae in the planetary nebula NGC 7009
Proper motions planetary nebula NGC 7009
2009/7/9
Proper motions of the ansae in the planetary nebula NGC 7009。
Expansion Parallax for the Compact Planetary Nebula M2-43
Parallax Compact Planetary Nebula M2-43
2009/6/30
Expansion Parallax for the Compact Planetary Nebula M2-43。
Oh maser emission toward the young planetary nebula K3-35
maser emission young planetary nebula K3-35
2009/6/25
Oh maser emission toward the young planetary nebula K3-35。
H 2-12, A Misidentified Planetary Nebula in Kepler SNR。
The Global Kinematics of the Dumbbell Planetary Nebula (NGC 6853, M27, PN G060.8-03.6)
Global Kinematics Dumbbell Planetary Nebula
2009/6/25
The Global Kinematics of the Dumbbell Planetary Nebula (NGC 6853, M27, PN G060.8-03.6)。
The Use of Line Excitation Mapping to Investigate Planetary Nebula Morphologies
Line Excitation Mapping Investigate Planetary Nebula Morphologies
2009/6/18
The Use of Line Excitation Mapping to Investigate Planetary Nebula Morphologies。
Three-Dimensional Photoionization Modeling of the Planetary Nebula NGC 6369
Photoionization Modeling Planetary Nebula NGC 6369
2009/6/15
Three-Dimensional Photoionization Modeling of the Planetary Nebula NGC 6369。