Stellar photometry with multi conjugate adaptive optics [PDF]
SPIE Proceedings, 2016 We overview the current status of photometric analyses of images collected with Multi Conjugate Adaptive Optics (MCAO) at 8-10m class telescopes that operated, or are operating, on sky.
G. Fiorentino +16 more
core +14 more sources
Multi-Site Simultaneous Time-Resolved Photometry with a Low Cost Electro-Optics System [PDF]
Sensors, 2017 Sunlight reflected off of resident space objects can be used as an optical signal for astrometric orbit determination and for deducing geometric information about the object.
Forrest Gasdia +2 more
doaj +3 more sources
Influence of Mie scattering on nanoparticles with different particle sizes and shapes: photometry and analytical ultracentrifugation with absorption optics [PDF]
Journal of the Serbian Chemical Society, 2005 Nanoparticles are used in large quantities for very different applications. A precise determination of the diameter and the particle size distribution which is responsible for the application properties is therefore essential.
M. D. LECHNER
doaj +6 more sources
Recent results and perspectives for precision astrometry and photometry with adaptive optics [PDF]
Astronomical Telescopes + Instrumentation, 2010 Large ground-based telescopes equipped with adaptive optics (AO) systems have ushered in a new era of high-resolution infrared photometry and astrometry. Relative astrometric accuracies of
Jessica R. Lu +6 more
core +7 more sources
REFERENCE-LESS DETECTION, ASTROMETRY, AND PHOTOMETRY OF FAINT COMPANIONS WITH ADAPTIVE OPTICS [PDF]
, 2009 We propose a complete framework for the detection, astrometry, and photometry of faint companions from a sequence of adaptive optics corrected short exposures. The algorithms exploit the difference in statistics between the on-axis and off-axis intensity.
Szymon Gładysz, Julian C. Christou
core +6 more sources
Ex vivo liquid core fiber photometry with high-resolution 3D printing [PDF]
Sensors and Actuators ReportsHigh resolution 3D printing emerges as an alternative to microfabrication due to its fine resolution along with one-step manufacturing. Thus, it is broadly used in many fields, such as biological and chemical applications.
Yu Chang, Can Wang, Ke Du
doaj +2 more sources
Fast Inline Microscopic Computational Imaging
Sensors, 2022 Inline inspection is becoming an essential tool for industrial high-quality production. Unfortunately, the desired acquisition speeds and needs for high-precision imaging are often at the limit of what is physically possible, such as a large field of ...
Laurin Ginner +2 more
doaj +1 more source
JWST Observations of the Enigmatic Y-Dwarf WISE 1828+2650. I. Limits to a Binary Companion
The Astrophysical Journal, 2023 The Y-dwarf WISE 1828+2650 is one of the coldest known brown dwarfs with an effective temperature of ∼300 K. Located at a distance of just 10 pc, previous model-based estimates suggest WISE1828+2650 has a mass of ∼5–10 M _J , making it a valuable ...
Matthew De Furio +22 more
doaj +1 more source
Remote Sensing, 2020 Orientation information of space debris is required to improve the orbital prediction accuracy for mitigation or elimination of a significant threat to not only human space activities but also operational satellites.
Hyung-Chul Lim +6 more
doaj +1 more source
Macular pigment optical density measured by heterochromatic modulation photometry. [PDF]
PLoS ONE, 2014 PURPOSE:To psychophysically determine macular pigment optical density (MPOD) employing the heterochromatic modulation photometry (HMP) paradigm by estimating 460 nm absorption at central and peripheral retinal locations. METHODS:For the HMP measurements,
Cord Huchzermeyer +5 more
doaj +1 more source