Results 61 to 70 of about 207,371 (176)
The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory
Astronomische Nachrichten, Volume 347, Issue 7, August 2026.ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth +20 more
wiley +1 more source
Origin of morphological structures of planetary nebulae
, 2011 Infrared and submm observations have revealed that for many bipolar and multipolar planetary nebulae, most of the masses reside in the equatorial region and the spherical envelope.
Kwok, S
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Irradiation Investigation: Exploring the Molecular Gas in NGC 7293
Galaxies, 2020 Background: Many planetary nebulae retain significant quantities of molecular gas and dust despite their signature hostile radiation environments and energetic shocks.
Jesse Bublitz +7 more
doaj +1 more source
Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.Abstract The Uranian moons, last visited in 1986 by Voyager 2, remain an intriguing yet under‐explored set of targets. Understanding the thermal structure and evolution of these moons is key to addressing one of the highest priority goals in planetary science: identifying if any are ocean worlds today or have been in the past. On Oberon, one feature in
M. Blanco‐Rojas +2 more
wiley +1 more source
Photoionization models of Planetary Nebulae
, 2016 The understanding of astronomical nebulae is based on observational data (images, spectra, 3D data-cubes) and theoretical models. In this review, I present my very biased view on photoionization modeling of planetary nebulae, focusing on 1D multi ...
Christophe Morisset
core +1 more source
Spectroscopy of Planetary Nebulae with Herschel: A Beginners Guide
Galaxies, 2018 A brief overview of the Herschel Space Telescope PACS and SPIRE spectrographs is given, pointing out aspects of working with the data products that should be considered by anyone using them.
Katrina Exter
doaj +1 more source
Structural Evolution of Antigorite by High‐Velocity Impacts
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract Serpentine is a major hydrous mineral present in hydrous asteroids that have evolved through planetary impacts. Understanding its dynamic behavior is essential to elucidate the redistribution and retention of water during high‐velocity impact processes. The shock response of antigorite was examined at pressures up to 106 GPa using laser‐driven
Yuhei Umeda +17 more
wiley +1 more source
First Release of the IPHAS Catalogue of Extended Planetary Nebulae
, 2013 Following a vast search for extended Planetary Nebulae (PNe) in the Galactic Plane using IPHAS, we present the first release of the "IPHAS Catalogue of Extended Nebulae".
Zijlstra, A +9 more
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Symmetric and asymmetric planetary nebulae and the time variation of the radial abundance gradients
, 2013 Planetary nebulae (PN) are excellent laboratories to study the chemical evolution of their host galaxies, especially concerning the radial abundance gradients and their time and spatial variations.
Maciel, Walter Junqueira
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Photometric observations of the binary nuclei of three Abell planetary nebulae
, 2004 Meeting on Asymmetrical Planetary Nebulae III -- JUL 28-AUG 01, 2003 -- Mt Rainier, WACCD photometric observations of the three Abell planetary nebulae (Abell 63, Abell 46 and Abell 41) nuclei are presented.
Afsar, M, Ibanoglu, C
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