Results 11 to 20 of about 109,158 (297)
The AT20G high-angular-resolution catalogue [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 We present the high angular resolution catalogue for the Australia Telescope 20 GHz (AT20G) survey, using the high angular resolution 6-km antenna data at the baselines of ~ 4500 m of the Australia Telescope Compact Array (ATCA). We have used the data to produce the visibility catalogue that separates the compact Active Galactic Nuclei (AGNs) from the ...
Chhetri, R. +3 more
openaire +5 more sources
Submillimetre cosmology at high angular resolution [PDF]
EAS Publications Series, 2009 (10 pages, 3 figures. Invited talk, proceedings for the 3rd ARENA Conference "An astronomical observatory at CONCORDIA (Antarctica) for the next decade", 11-15 May 2009, Frascati ...
T.R. Greve, Greve, T. R.
openaire +4 more sources
Measurement of Submicron Particle Size Using Scattering Angle-Corrected Polarization Difference with High Angular Resolution [PDF]
Photonics, 2023 The particle size of submicron particles significantly affects their properties; thus, the accurate measurement of submicron particle size is essential to ensure its excellent properties.
Chaoyi Shi +7 more
doaj +2 more sources
Compact and high-resolution optical orbital angular momentum sorter [PDF]
APL Photonics, 2017 A compact and high-resolution optical orbital angular momentum (OAM) sorter is proposed and demonstrated. The sorter comprises a quadratic fan-out mapper and a dual-phase corrector positioned in the pupil plane and the Fourier plane, respectively.
Chenhao Wan, Jian Chen, Qiwen Zhan
doaj +2 more sources
Improving the spatial, angular, and temporal resolution in light field imaging [PDF]
, 2022 Yu, JingyiA light field captures a dense set of rays as scene descriptions in place of geometry. Recent advances on computational imaging have enabled novel and efficient light field acquisition devices. For example, the new Lytro and Raytrix cameras are
Yu, Zhan
core +1 more source
Gamma Cas Stars as Be+White Dwarf Binary Systems
The Astrophysical Journal Letters, 2022 The origin of the bright and hard X-ray emission flux among the γ Cas subgroup of B-emission line (Be) stars may be caused by gas accretion onto an orbiting white dwarf (WD) companion.
Douglas R. Gies +2 more
doaj +1 more source
The Orbital and Physical Properties of Five Southern Be+sdO Binary Systems
The Astronomical Journal, 2023 Close binary interactions may play a critical role in the formation of the rapidly rotating Be stars. Mass transfer can result in a mass gainer star spun up by the accretion of mass and angular momentum, while the mass donor is stripped of its envelope ...
Luqian Wang +3 more
doaj +1 more source
MYSTIC: a high angular resolution K-band imager at CHARA [PDF]
, 2023 International audienceThe Michigan Young Star Imager at CHARA (MYSTIC) is a K-band interferometric beam combining instrument funded by the U.S. National Science Foundation, designed primarily for imaging sub-au scale disk structures around nearby young ...
Ibrahim, Nour +21 more
core +1 more source
High angular resolution gravitational wave astronomy [PDF]
, 2021 Since the very beginning of astronomy the location of objects on the sky has been a fundamental observational quantity that has been taken for granted.
Buis E. -J. +21 more
core +7 more sources
The Great Dimming of the Hypergiant Star RW Cephei: CHARA Array Images and Spectral Analysis
The Astronomical Journal, 2023 The cool hypergiant star RW Cephei is currently in a deep photometric minimum that began several years ago. This event bears a strong similarity to the Great Dimming of the red supergiant Betelgeuse that occurred in 2019–2020.
Narsireddy Anugu +17 more
doaj +1 more source