Results 91 to 100 of about 69,349 (337)
The colour of the narrow line Sy1-blazar 0324+3410
, 2008 Aims. We investigate the properties of the host galaxy of the blazar J0324+3410 (B2 0321+33) by the analysis of B and R images obtained with the NOT under good photometric conditions.
Anton, S. +2 more
core +2 more sources
The Curious Case of CysE: Diversity and Distribution of Serine Acetyltransferases in Bacteria
Proteins: Structure, Function, and Bioinformatics, EarlyView.ABSTRACT Serine acetyltransferase (CysE) is a member of the left‐handed β‐helix family of acetyltransferases that catalyze the rate limiting step in de novo cysteine biosynthesis. There are two isoforms of CysE that differ in length, with the shorter isoform lacking approximately 76 amino acids at the N‐terminus of the protein from the serine ...
Keely E. A. Oldham +3 more
wiley +1 more source
Energy Evolution in the Progenitor of Galaxy Shells: A Semi-analytical Model
The Astrophysical JournalThe stellar shells surrounding an elliptical galaxy, as remnants of a dwarf galaxy disrupted during merging, reveal the distribution of energy and angular momentum of the progenitor dwarf galaxy. We develop a semi-analytical model to describe the changes
Beibei Guo +3 more
doaj +1 more source
Rare Metals, EarlyView.ABSTRACT Nanocomposite permanent magnets with reduced rare‐earth content represent a promising class of materials for next‐generation high‐performance applications. However, asynchronous precipitation of soft and hard magnetic phases often results in grain size mismatch and limited coercivity.
Xiaowei Zhang +6 more
wiley +1 more source
Tidal Formation of Dark Matter Deficit Diffuse Galaxy NGC 1052-DF2 by SIDM
The Astrophysical JournalObservations have revealed a significant dark matter deficit in the ultradiffuse galaxy NGC 1052-DF2 (DF2). It is widely accepted that the formation of this unique galaxy can be attributed to the tidal stripping of its host galaxy, NGC 1052.
Zhao-Chen Zhang +2 more
doaj +1 more source
Interacting Galaxies with MOND
, 2007 We compare N-body simulations performed in MOND with analogs in Newtonian gravity with dark matter (DM). We have developed a code which solves the Poisson equation in both gravity models. It is a grid solver using adaptive mesh refinement techniques, allowing us to study isolated galaxies as well as interacting galaxies.
Tiret, O., Combes, F.
openaire +2 more sources
The frequency and properties of young tidal dwarf galaxies in nearby gas-rich groups
, 2016 We present high-resolution Giant Metrewave Radio Telescope (GMRT) HI observations and deep Canada-France-Hawaii Telescope (CFHT) optical imaging of two galaxy groups: NGC 4725/47 and NGC 3166/9.
Cannon, J. +10 more
core +2 more sources
Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions
Journal of Field Robotics, EarlyView.ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos +6 more
wiley +1 more source
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 +7 more
wiley +1 more source
A Multiwavelength Portrait of the 3C 220.3 Lensed System
The Astrophysical JournalThe 3C 220.3 system is a rare case of a foreground narrow-line radio galaxy (“galaxy A,” z _A = 0.6850) lensing a background submillimeter galaxy ( z _SMG = 2.221).
Sóley Ó. Hyman +12 more
doaj +1 more source