Results 1 to 10 of about 645,427 (246)
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
Adaptive Optics Photometry and Astrometry of Binary Stars
Astronomical Journal, 2005 Lewis C. Roberts Jr. +8 more
exaly +2 more sources
Biomedical Optics Express, 2021 As the scientific community seeks efficient optical neural interfaces with sub-cortical structures of the mouse brain, a wide set of technologies and methods is being developed to monitor cellular events through fluorescence signals generated by ...
Marco Bianco +9 more
semanticscholar +1 more source
Optical Photometry of GRB 021004: The First Month [PDF]
The Astronomical Journal, 2003 21 pages with five figures. Uses AASTEX 5.02. To appear in AJ.
Holland, S.T. +19 more
openaire +3 more sources
Accurate Photometry of Saturated Stars Using the Point-spread-function Wing Technique with Spitzer [PDF]
Astronomical Journal, 2021 We report Spitzer 3.6 and 4.5 μm photometry of 11 bright stars relative to Sirius, exploiting the unique optical stability of the Spitzer Space Telescope point-spread function (PSF).
K. Su, G. Rieke, M. Marengo, E. Schlawin
semanticscholar +1 more source
Optical and Infrared Photometry of the nearby SN 2017cbv [PDF]
The Astrophysical Journal, 2018 Abstract On 2017 March 11, the DLT40 Transient Discovery Survey discovered SN 2017cbv in NGC 5643, a Type 2 Seyfert Galaxy in the Lupus Constellation. SN 2017cbv went on to become a bright Type Ia supernova, with a V max of 11.51 ± 0.05 mag.
Jerrick Wee +3 more
openaire +2 more sources
Optical and Radio Surface Photometry of NGC 891 [PDF]
Symposium - International Astronomical Union, 1990 A general correlation between the radio and optical continuum surface brightness has been found in the edge-on galaxy NGC 891. This suggests that the relativistic electrons are produced/accelerated in the vicinity of evolved stars or stellar remnants which have a spatial distribution similar to old disk stars.
ALLEN, RJ +3 more
openaire +2 more sources
The photometry of optical instruments [PDF]
Transactions of the Optical Society, 1922 The use of a portable surface-brightness photometer of the polarisation type for the measurement of the fraction of the incident light transmitted by an optical instrument or reflected by a mirror or system of mirrors, and for the measurement of the relative brightness of different parts of the field of view of an optical instrument, is described.
openaire +1 more source
Demonstrating Exoplanet Transit Photometry from Space with a 15 mm Aperture Optical Navigation Camera on Hayabusa2 [PDF]
Astronomical JournalObservations of exoplanet transits by small satellites have gained increasing attention for reducing biases in the detection of long-period planets. However, no unambiguous detection of an exoplanet has yet been demonstrated using optics with apertures ...
K. Yumoto +16 more
semanticscholar +1 more source
Fast CCD Photometry in the Taiwan-America Occultation Survey
Open Astronomy, 2003 We describe the efforts of the Taiwan-America Occultation Survey (TAOS) project to develop a data acquisition and analysis scheme for fast CCD imaging photometry.
Chen W. P. +18 more
doaj +1 more source