Results 11 to 20 of about 1,376 (293)

The genome sequence of the Blood-vein moth, Timandra comae Schmidt, 1931 [version 1; peer review: 2 approved] [PDF]

open access: yesWellcome Open Research
We 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
doaj   +4 more sources

Shock-induced nucleation of nanophase Fe-Ni alloy and its implications for interstellar iron reservoirs [PDF]

open access: yesFrontiers in Chemistry
Shock 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
doaj   +2 more sources

Dynamic molecular oxygen production in cometary comae [PDF]

open access: yesNature 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
doaj   +2 more sources

A large rotation of the polarization angle of the TeV Blazar W Comae [PDF]

open access: yesEPJ Web of Conferences, 2013
Optical R-band polarimetric variability observations of the TeV Blazar W Comae are presented. Data obtained from 2008 February to 2013 May (∼5.2 years) are analyzed. The source presented a maximum flux variability of ∼3 mJy.
Benítez Erika   +2 more
doaj   +2 more sources

On the origin of molecular oxygen in cometary comae [PDF]

open access: yesNature Communications, 2018
K. L. Heritier   +16 more
doaj   +2 more sources

Cometary Comae-Surface Links: The Physics of Gas and Dust from the Surface to a Spacecraft. [PDF]

open access: yesSpace Sci Rev, 2020
A comet is a highly dynamic object, undergoing a permanent state of change. These changes have to be carefully classified and considered according to their intrinsic temporal and spatial scales. The Rosetta mission has, through its contiguous in-situ and
Marschall R   +11 more
europepmc   +2 more sources

CoMAE: Single Model Hybrid Pre-training on Small-Scale RGB-D Datasets

open access: yes, 2023
Current RGB-D scene recognition approaches often train two standalone backbones for RGB and depth modalities with the same Places or ImageNet pre-training.
Guo, Sheng   +3 more
core   +2 more sources

Dark Comets? Unexpectedly Large Nongravitational Accelerations on a Sample of Small Asteroids

open access: yesThe 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
doaj   +1 more source

Dust Outburst Dynamics and Hazard Assessment for Close Spacecraft–Comet Encounters

open access: yesThe 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
doaj   +1 more source

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