Results 91 to 100 of about 86,915 (297)
Imaging of Biphoton States: Fundamentals and Applications
Advanced Functional Materials, EarlyView.Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley +1 more source
Night sky brightness at sites from DMSP-OLS satellite measurements [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 14 pages, 12 figures, accepted for publication in MNRAS, 17 june ...
Cinzano, Pierantonio +1 more
openaire +2 more sources
Continuous prediction of Spartan visibility from Orbiter over modeled free-flight mission [PDF]
Orbital operations in the neighborhood of other satellites or free-flying objects need the ability to see and detect such objects optically. This ability depends primarily on the brightness of the object relative to other sources present.
King, J. C.
core +1 more source
Sumo Puff: Tidal Debris or Disturbed Ultra-Diffuse Galaxy?
, 2017 We report the discovery of a diffuse stellar cloud with an angular extent $\gtrsim30^{\prime\prime}$, which we term "Sumo Puff", in data from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). While we do not have a redshift for this object, it is
Goulding, Andy D. +12 more
core +1 more source
Advanced Functional Materials, EarlyView.A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian +10 more
wiley +1 more source
Diffuse and specular brightness models applied to LEO satellites
Astronomy & AstrophysicsContext. To better understand the observed brightness of low Earth orbit satellites, we must characterize their reflectivity, which in turn depends importantly on their bus designs.
Romero-Colmenares María +13 more
doaj +1 more source
A determination of the magnitude and brightness fluctuations of the Pageos satellite [PDF]
Determination of Pageos satellite magnitude and brightness ...
Genatt, S. H., Moye, J. E.
core +1 more source
, 2010 Since the 1980's it has been becoming increasingly clear that the Solar System's irregular satellites are collisionally evolved. We derive a general model for the collisional evolution of an irregular satellite swarm and apply it to the Solar System and ...
Agnor +72 more
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Starlink Satellite Brightness -- Characterized From 100,000 Visible Light Magnitudes
, 2021 Magnitudes for the VisorSat and Original-design types were analyzed separately and by time. Mean values are compared with those from other large-scale photometric studies, and some signficant differences are noted. The illumination phase functions for Starlink satellites indicate strong forward scattering of sunlight.
openaire +2 more sources
Advanced Functional Materials, EarlyView.Atomically engineered layered 2D Ti3CNTz carbonitride MXene exhibits ultrahigh heat and pressure sensitivity, enabling dual‐mode sensors with 300%–400% performance enhancement and durability for real‐time health‐monitoring interface devices. Precise nitrogen incorporation (e.g., Ti3C1.8N0.2Tz) boosts conductivity, enhancing temperature response, while ...
Debananda Mohapatra +12 more
wiley +1 more source