Results 71 to 80 of about 453,739 (281)
Slant, Fan, and Narrow: The Response of Stellar Streams to a Tilting Galactic Disk
The Astrophysical JournalStellar streams are sensitive tracers of the gravitational potential, which is typically assumed to be static in the inner Galaxy. However, massive mergers like Gaia-Sausage-Enceladus can impart torques on the stellar disk of the Milky Way that result in
Jacob Nibauer +4 more
doaj +1 more source
Stellar streams around dwarf galaxies in the local Universe
Astronomy & AstrophysicsContext. While mergers between massive galaxies and their dwarf satellites have been well studied, the properties of dwarf–dwarf satellite mergers are not well constrained.
Sakowska Joanna D. +8 more
doaj +1 more source
Finding Stellar Streams in Photometric Surveys [PDF]
AIP Conference Proceedings, 2008 © 2008 American Institute of Physics. Published online 05 December 2008.
Carl J. Grillmair +1 more
openaire +2 more sources
Bio‐Inspired Artificial Ionic Mechanoreceptor
Advanced Functional Materials, EarlyView.A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari +4 more
wiley +1 more source
Dynamical modelling of stellar streams in a cosmological setting [PDF]
, 2015 Stellar streams are created when small groups of stars such as dwarf galaxies and globular clusters are torn apart by tides as they move around a larger galaxy. In the case of the Milky Way, it is believed that the stellar halo is full of such structures.
Buist, Johannes Theodoor
core +4 more sources
StarStream on Gaia: Stream Discovery and Mass-loss Rate of Globular Clusters
The Astrophysical Journal Supplement SeriesWe apply the automatic stellar stream detection algorithm StarStream to Gaia Data Release 3 and identify 87 stellar streams associated with Galactic globular clusters (GCs), including 34 high-quality cases with median completeness and purity both ...
Yingtian Chen +2 more
doaj +1 more source
Dirac‐Source Linear X‐Ray Detection Diode
Advanced Functional Materials, EarlyView.Monolayer graphene imparts near linear current‐voltage behavior to a perovskite X‐ray detection diode, contrasting with conventional diode‐like responses. Exploiting graphene's Dirac dispersion and a Schottky‐like back‐to‐back junction, the device achieves six‐orders‐of‐magnitude dark current suppression while retaining linearity over 200 V, enabling ...
Babar Shabbir +8 more
wiley +1 more source
Contrastive learning of extragalactic stellar streams
Astronomy & AstrophysicsWe present a self-supervised approach for characterizing low-surface-brightness tidal features in wide-field imaging data by applying the nearest-neighbor contrastive learning of visual representations (NNCLR) algorithm to a curated subset of the Dark ...
Benitez-Walz Ernesto +4 more
doaj +1 more source
The Galactic Anticenter Stellar Stream
, 2003 12 pages, 4 figures; submitted to the Astrophysical Journal ...
Rocha-Pinto, Helio J. +3 more
openaire +2 more sources
The Density Structure of Simulated Stellar Streams [PDF]
The Astrophysical Journal, 2020 Abstract Star particles in a set of dense clusters are self-consistently evolved within an LCDM dark matter distribution with an n-body code. The clusters are started on nearly circular orbits in the more massive sub-halos. Each cluster develops a stellar tidal stream, initially within its original sub-halo.
openaire +2 more sources