Results 1 to 10 of about 365 (240)
The genome sequence of the Blood-vein moth, Timandra comae Schmidt, 1931 [version 1; peer review: 2 approved] [PDF]
Wellcome Open ResearchWe present a genome assembly from an individual male Timandra comae (the Blood-vein; Arthropoda; Insecta; Lepidoptera; Geometridae). The genome sequence is 334.4 megabases in span.
Denise C. Wawman
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Shock-induced nucleation of nanophase Fe-Ni alloy and its implications for interstellar iron reservoirs [PDF]
Frontiers in ChemistryShock waves are ubiquitous in star-forming regions, protoplanetary disks, and cometary environments, yet their role in processing refractory metals remains poorly understood.
Prakash Velampatti Selvaraj +2 more
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Spectroscopic Constants and Anharmonic Vibrational Frequencies of C(O)OC, c-C2O2 and Their Silicon-Containing Analogues [PDF]
Molecules, 2023 Comets are likely to contain various carbon oxide molecules potentially including C(O)OC and c-C2O2 on their surfaces and comae, as well as their silicon-substituted analogues possibly playing a role in the formation of interstellar dust grains.
Olivia A. Harwick, Ryan C. Fortenberry
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Dynamic molecular oxygen production in cometary comae [PDF]
Nature Communications, 2017 Abundant molecular oxygen was discovered recently in the coma of comet 67P, thought to be of primordial origin. Here, the authors propose a dynamic reaction mechanism for cometary comae, which produces O2directly in single collisions of energetic water ...
Yunxi Yao, Konstantinos P. Giapis
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On the origin of molecular oxygen in cometary comae [PDF]
Nature Communications, 2018 K. L. Heritier +16 more
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Reply to “On the origin of molecular oxygen in cometary comae” [PDF]
Nature Communications, 2018 Y. Yao, K. P. Giapis
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Dark Comets? Unexpectedly Large Nongravitational Accelerations on a Sample of Small Asteroids
The Planetary Science Journal, 2023 We report statistically significant detections of nonradial, nongravitational accelerations based on astrometric data in the photometrically inactive objects 1998 KY _26 , 2005 VL _1 , 2016 NJ _33 , 2010 VL _65 , 2016 RH _120 , and 2010 RF _12 .
Darryl Z. Seligman +17 more
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Dust Outburst Dynamics and Hazard Assessment for Close Spacecraft–Comet Encounters
The Planetary Science Journal, 2021 Using the gas drag by sublimating cometary surface ices for the acceleration of dust particles and deceleration by the gravity field of the nucleus combined with basic laws of mechanics, the sizes, velocities, and number densities of escaping particles ...
Uwe Fink +6 more
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The Astronomical Journal, 2023 Short-period comet 108P/Ciffreo is known for its peculiar double morphology, in which the nucleus is accompanied by a comoving, detached, diffuse “blob.” We report new observations of 108P/Ciffreo taken with the Hubble Space Telescope and the Nordic ...
Yoonyoung Kim +4 more
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Entomological Communications, 2022 Pineapple lilies Eucomis autumnalis (Mill.) Chitt. and Eucomis comosa Houtt. ex. Wehrh. are endemic herbaceous plants in southern Africa but are planted as ornamental bulbous plants globally.
Kazuo Yamazaki
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