Results 111 to 120 of about 5,068 (263)
First Evidence of Circumstellar Disks around Blue Straggler Stars
, 2004 We present an analysis of optical HST/STIS and HST/FOS spectroscopy of 6 blue stragglers found in the globular clusters M3, NGC6752 and NGC6397. These stars are a subsample of a set of ~50 blue stragglers and stars above the main sequence turn-off in ...
Bessell M. S. +7 more
core +2 more sources
Collisions of Main-Sequence Stars and the Formation of Blue Stragglers in Globular Clusters [PDF]
, 1996 James C. Lombardi +2 more
openalex +1 more source
Enhancing Realism in Holographic Augmented Reality Displays Through Occlusion Handling
Laser &Photonics Reviews, EarlyView.The proposed optical‐see‐through holographic AR display with occlusion support presents highly realistic 3D AR scenes by projecting speckle‐suppressed, high‐contrast 3D holographic virtual images onto the corresponding real‐scene masks. By leveraging the occlusion capability, virtual shadows based on a Poisson distribution can also be rendered for the ...
Woongseob Han +2 more
wiley +1 more source
Bright Variable Stars in NGC 6819 - An Open Cluster in the Kepler Field
, 2010 We describe a variability study of the moderately old open cluster NGC 6819. We have detected 4 new detached eclipsing binaries near the cluster turnoff (one of which may be in a triple system). Several of these systems should be able to provide mass and
Antonio Talamantes +24 more
core +1 more source
Stellar Collisions and Blue Straggler Formation
, 2001 We review recent 3D hydrodynamic calculations of stellar collisions using the Smoothed Particle Hydrodynamics (SPH) method, and we discuss the implications of the results for the formation and evolution of blue stragglers in globular clusters. We also discuss the construction of simple analytic models for merger remnants, approximating the mass loss ...
Lombardi, James C., Rasio, Frederic A.
openaire +2 more sources
Artificial Spider Silk Fibers with Embedded Magnetite Nanoparticles
Macromolecular Materials and Engineering, EarlyView.Artificial spider silk fibers are endowed with magnetic functionality by incorporating magnetite nanoparticles, with different coating and size, at nominal magnetite concentrations between 0.2 and 20 wt.%. The fibers are robust and ductile. The characteristics of the nanoparticles determine their degree of dispersion in the fibers and are crucial to ...
Lucia Del Bianco +7 more
wiley +1 more source
Cell Division Control Protein 42 Interacts With Hepatitis E Virus Capsid Protein and Participates in Hepatitis E Virus Infection. [PDF]
Front Microbiol, 2021 Fan M +10 more
europepmc +1 more source
The Frequency of Binary Stars in the Core of 47 Tucanae
, 2001 Differential time series photometry has been derived for 46422 main-sequence stars in the core of 47 Tucanae. The observations consisted of near-continuous 160-s exposures alternating between the F555W and F814W filters for 8.3 days in 1999 July with ...
Alard C. +31 more
core +1 more source
HST — WFPC2 Photometry of the Globular Cluster NGC 288: Binary Systems, Blue Stragglers and Very Blue Stars [PDF]
, 2000 M. Bellazzini, M. Messineo
openalex +1 more source
People and Nature, EarlyView.Abstract The recovery of large carnivores in Europe raises issues related to sharing landscape with humans. Beyond technical solutions, it is widely recognized that social factors also contribute to shaping coexistence. In this context, scholars increasingly stress the need to adopt place‐based approaches by analysing how humans and wildlife interact ...
Alice Ouvrier +7 more
wiley +1 more source