Results 121 to 130 of about 232,037 (310)

Globular Clusters as Tracers of Fine Structure in the Dramatic Shell Galaxy NGC 474 [PDF]

, 2017
Sungsoon Lim, Eric W. Peng, Pierre-Alain Duc, Jérémy Fensch, Patrick R. Durrell, William E. Harris, Jean-Charles Cuillandre, Stephen Gwyn, Ariane Lançon, Rúben Sánchez-Janssen   +9 more
openalex   +1 more source

THE SHAPE OF GALAXY STRUCTURES

The Astrophysical Journal, 2009
An analysis is presented for a statistically complete sample of 547 galaxy structures with z ≤ 0.16, each containing at least 10 objects. The sample was divided according to structure richness, representing 10 richness classes, with the distribution of ellipticities differing among individual classes.
Elena Panko, Teresa Juszczyk, Monika Biernacka, Piotr Flin   +3 more
openaire   +1 more source

Improving Cycle Life and Capacity Retention in PVMPO‖Li Dual‐Ion Lithium‐Organic Batteries Using an EC‐Free and FEC Additive Containing Electrolyte

Small Methods, EarlyView.
The major bottleneck of PVMPO‐based positive electrodes is electrode degradation during extended cycling with EC‐containing electrolytes. This issue is mitigated by using EC‐free electrolytes with FEC additives, which exhibit reduced interfacial resistance, fewer surface cracks, improved capacity retention, and suppressed electrode degradation, thereby
Sathiya Priya Panjalingam, Somayeh Ahadi, Jakob Michael Hesper, Uta Rodehorst, Sascha Nowak, Birgit Esser, Martin Winter, Peter Bieker   +7 more
wiley   +1 more source

The stellar structure of irregular galaxies. Face-on galaxies

Astronomy Reports, 2005
Stellar photometry of nearby irregular galaxies of the Local Group is used to identify and study the young and old stellar populations of these galaxies. An analysis of the spatial distributions of stars of different ages in face-on galaxies shows that the young stellar populations in irregular galaxies are concentrated toward the center, and form ...
openaire   +3 more sources

The chemical and thermal structure of the hot atmosphere of the elliptical galaxy NGC 5813 [PDF]

, 2022
D Chatzigiannakis, A. Simionescu, François Mernier   +2 more
openalex   +1 more source

The relation between bar formation, galaxy luminosity, and environment

, 2013
We derive the bar fraction in three different environments ranging from the field to Virgo and Coma clusters, covering an unprecedentedly large range of galaxy luminosities (or, equivalently, stellar masses).
Aguerri, J. A. L., Corsini, E. M., Mendez-Abreu, J., Sanchez-Janssen, R., Zarattini, S.   +4 more
core  

Saving Bambi from the mower? Using a drone with thermal camera to evaluate a low‐tech scaring technique to reduce roe deer fawn mortality during grass harvest

Wildlife Biology, EarlyView.
Roe deer is a species that hides their neonates as an anti‐predator strategy. This may prove efficient against mammalian predators, such as the red fox; however, it might be an ecological trap as large numbers of fawns are killed by tractors with harvesters each year during grass harvest.
Thomas Vogler, Neri H Thorsen, Simen Pedersen   +2 more
wiley   +1 more source

An Updated Efficient Galaxy Morphology Classification Model Based on ConvNeXt Encoding with UMAP Dimensionality Reduction

The Astronomical Journal
We present an enhanced unsupervised machine learning (UML) module within our previous USmorph classification framework featuring two components: (1) hierarchical feature extraction via a pretrained ConvNeXt convolutional neural network with transfer ...
Guanwen Fang, Shiwei Zhu, Jun Xu, Shiying Lu, Chichun Zhou, Yao Dai, Zesen Lin, Xu Kong   +7 more
doaj   +1 more source

Recent Advances in Large-Scale Structure and Galaxy Formation Studies [PDF]

, 2002
L. Guzzo
openalex   +1 more source

Radiation‐Induced Degradation in Polymeric Materials: Alterations in Physical–Chemical Properties and Their Effects on Electrical Performance of Insulation Systems

High Voltage, EarlyView.
ABSTRACT This paper investigates the effects of radiation on polymeric materials used as insulation systems in electrical equipment such as cables for nuclear and particle accelerator applications. After a detailed description of the physics of radiation‐induced damage in the polymeric matrix, a comprehensive analysis of the physical–chemical and ...
Simone Vincenzo Suraci, Davide Fabiani
wiley   +1 more source