Results 1 to 10 of about 193,810 (272)

Stellar photometry with Multi Conjugate Adaptive Optics [PDF]

open access: greenSPIE 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.
Andersen, David   +16 more
core   +11 more sources

Reference-less detection, astrometry, and photometry of faint companions with adaptive optics [PDF]

open access: bronzeAstrophys.J.698:28-42,2009, 2008
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.
Beuzit   +19 more
arxiv   +5 more sources

Influence of Mie scattering on nanoparticles with different particle sizes and shapes: Photometry and analytical ultracentrifugation with absorption optics [PDF]

open access: diamondJournal 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.
Lechner M.D.
doaj   +5 more sources

Multi-Site Simultaneous Time-Resolved Photometry with a Low Cost Electro-Optics System [PDF]

open access: goldSensors, 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   +2 more sources

Optical and Infrared Photometry of SN 2005df [PDF]

open access: yesarXiv, 2017
We present optical BVRI and near-infrared YJHK_s photometry of the normal Type Ia supernova 2005df, obtained with the CTIO 1.3-m and 0.9-m telescopes. The B- and V-band photometry, S-corrected to the filter prescriptions of Bessell(1990), matches the corresponding photometry from the ANU published by Milne et al. (2010). The R-band photometry from CTIO
Kevin Krisciunas   +5 more
arxiv   +5 more sources

Recent Results and Perspectives for Precision Astrometry and Photometry with Adaptive Optics [PDF]

open access: bronze, 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
Clarkson, Will   +6 more
core   +4 more sources

Quantifying the Contamination from nearby Stellar Companions in Gaia DR3 Photometry [PDF]

open access: yesThe Astronomical Journal
Identifying and removing binary stars from stellar samples is a crucial but complicated task. Regardless of how carefully a sample is selected, some binaries will remain and complicate interpretation of results, especially via flux contamination of ...
Kendall Sullivan   +3 more
doaj   +2 more sources

III. On photometry in connexion with physical optics [PDF]

open access: greenThe London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science
n ...
Richard Potter
openalex   +4 more sources

Optical Properties of Light-Scattering Standards for CCD Photometry. [PDF]

open access: yesSensors (Basel), 2023
This paper analyzes the light-scattering standards currently used for calibration (verification) and systematic research in photo and spectrophotometry tools. The application specificities in studying the diffuse reflected and transmitted light during biomedical CCD photometry are considered.
Bondariev D   +4 more
europepmc   +4 more sources

Fast Inline Microscopic Computational Imaging

open access: yesSensors, 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

Home - About - Disclaimer - Privacy