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.
Andersen, David +16 more
core +13 more sources
Reference-less detection, astrometry, and photometry of faint companions with adaptive optics [PDF]
Astrophys.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 +7 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
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
Clarkson, Will +6 more
core +6 more sources
Quantifying the Contamination from nearby Stellar Companions in Gaia DR3 Photometry [PDF]
The Astronomical JournalIdentifying 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 +4 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.
Lechner M.D.
doaj +6 more sources
DDO68 C: The Actual Appearance of a Ghost Satellite Dwarf through Adaptive Optics at the Large Binocular Telescope [PDF]
The Astrophysical Journal Letters, 2023 Through adaptive optics (AO) imaging with the SOUL+LUCI instrument at the Large Binocular Telescope we were able to resolve, for the first time, individual stars in the gas-rich galaxy DDO68 C. This system was already suggested to be interacting with the
Francesca Annibali +9 more
doaj +2 more sources
PROBABILITY OF THE PHYSICAL ASSOCIATION OF 104 BLENDED COMPANIONS TOKEPLEROBJECTS OF INTEREST USING VISIBLE AND NEAR-INFRARED ADAPTIVE OPTICS PHOTOMETRY [PDF]
, 2016 We determine probabilities of physical association for stars in blended Kepler Objects of Interest (KOIs), and find that of companions within ∼4″ are consistent with being physically unassociated with their primary.
Dani Atkinson +5 more
openalex +3 more sources
Optimal Stellar Photometry for Multi-conjugate Adaptive Optics Systems Using Science-based Metrics [PDF]
, 2017 We present a detailed discussion of how to obtain precise stellar photometry in crowded fields using images from multi-conjugate adaptive optics (MCAO) systems, with the intent of informing the scientific development of this key technology for the ...
Paolo Turri +7 more
openalex +3 more sources
Pushing the Limits of Near-Infrared Photometry with the Gemini Multi-Conjugate Adaptive Optics System: Study of crowded fields in the Globular Cluster M5 [PDF]
Monthly notices of the Royal Astronomical SocietyWe present the deepest J – Ks near-infrared photometry of the globular cluster M5 (NGC 5904) from observations taken with the Gemini South Adaptive Optics Imager in tandem with the Gemini Multi-conjugate adaptive optics System (GeMS) on the 8.1m Gemini-
Tarun Kumar +6 more
openalex +2 more sources