Results 51 to 60 of about 110,738 (286)
Galaxies, 2018 The increase in discovered close binary central stars of planetary nebulae is leading to a sufficiently large sample to begin to make broader conclusions about the effect of close binary stars on common envelope evolution and planetary nebula formation ...
Todd Hillwig
doaj +1 more source
High-resolution Radio Study of the Dragonfly Pulsar Wind Nebula Powered by PSR J2021+3651
The Astrophysical Journal, 2023 The Dragonfly Nebula (G75.2+0.1) powered by the young pulsar J2021+3651 is a rare pulsar wind nebula (PWN) that shows double tori and polar jets enclosed by a bow-shock structure in X-rays.
Ruolan Jin +3 more
doaj +1 more source
Physical Structure of Planetary Nebulae. I. The Owl Nebula
, 2003 The Owl Nebula is a triple-shell planetary nebula with the outermost shell being a faint bow-shaped halo. We have obtained deep narrow-band images and high-dispersion echelle spectra in the H-alpha, [O III], and [N II] emission lines to determine the ...
Arturo Manchado +11 more
core +1 more source
Spatial distribution of carbon dust in the early solar nebula and the carbon content of planetesimals [PDF]
, 2016 Context. A high fraction of carbon bound in solid carbonaceous material is observed to exist in bodies formed in the cold outskirts of the solar nebula, while bodies in the region of terrestrial planets contain only very small mass fractions of carbon ...
H. Gail, M. Trieloff
semanticscholar +1 more source
, 2012 The long-period Cepheid RS Pup is surrounded by a large dusty nebula reflecting the light from the central star. Due to the changing luminosity of the central source, light echoes propagate into the nebula.
A. Mérand +41 more
core +2 more sources
Harnessing the Neurobiology of Empathy and Compassion to Alleviate Burnout in Neurology
Annals of Neurology, EarlyView.The neurologist cares for patients with complex chronic conditions that compromise their wellbeing. Many such disorders are poorly understood. Whereas for some, effective symptomatic treatments exist, for most we lack an understanding of the molecular and cellular bases for disease pathogenesis needed for discovering disease‐modifying treatments ...
Fadel Zeidan +2 more
wiley +1 more source
A PeVatron Candidate: Modeling the Boomerang Nebula in X-ray Band
Universe, 2022 Pulsar wind nebula (PWN) Boomerang and the associated supernova remnant (SNR) G106.3+2.7 are among candidates for the ultra-high-energy (UHE) gamma-ray counterparts published by LHAASO.
Xuan-Han Liang +4 more
doaj +1 more source
, 2009 It has been suggested that shock waves in the solar nebula formed the high temperature materials observed in meteorites and comets. It is shown that the temperatures at the inner rim of the solar nebula could have been high enough over a sufficient ...
Bouwman +14 more
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Business Strategy and the Environment, EarlyView.ABSTRACT The circular economy (CE) offers a transformative approach to addressing global sustainability challenges, yet few frameworks integrate it with business strategy, systems thinking (ST) and asset management (AM), especially within critical infrastructure sectors like rail. This paper conducts a comprehensive literature review to assess existing
Carl Waring, Kapila Liyanage
wiley +1 more source
The Astrophysical Journal Letters, 2022 We report the discovery of giant (50−100 kpc) [O ii ] emitting nebulae with MUSE in the field of TXS 0206−048, a luminous quasar at z = 1.13. “Down-the-barrel” UV spectra of the quasar show absorption at velocities coincident with those of the extended ...
Sean D. Johnson +12 more
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