Results 1 to 10 of about 48,747 (277)
Spatial uniformity and temporal stability of pixel-to-pixel variation in mini-SiTian CMOS detector [PDF]
Scientific ReportsHigh-precision flat-fields correction is essential for precision astronomical photometry, with pixel-to-pixel variation correction playing a key role.
Guozhen Hu +16 more
doaj +2 more sources
Microwave Receiving System Based on Cryogenic Sensors for the Optical Big Telescope Alt-Azimuth [PDF]
SensorsThis article presents the results of evaluating the possibility of conducting radio astronomy studies in the windows of atmospheric transparency ~100, ~230, and ~350 GHz using the optical Big Telescope Alt-Azimuthal (BTA) of the Special Astrophysical ...
Yurii Balega +21 more
doaj +2 more sources
Ensemble Deep Learning for Real–Bogus Classification with Sky Survey Images [PDF]
BiomimeticsThe discovery of the fifth gravitational wave, GW170817, and its electromagnetic counterpart, resulting from the merger of neutron stars by the LIGO and Virgo teams, marked a major milestone in astronomy.
Pakpoom Prommool +3 more
doaj +2 more sources
The Cosmos and Crystal Connection: What We Can Learn About Data Compression [PDF]
Structural DynamicsWe use both lossy and lossless compression methods to reduce large amounts of digital data, making it easier to store and manage. Lossy and lossless compression is frequently used in astronomy, to condense the large amount of data collected by ...
Kimberly M. Horvat +3 more
doaj +2 more sources
Particles, 2023 Cosmic ray air showers are a phenomenon that can be observed on Earth when high-energy particles from outer space collide with the Earth’s atmosphere. These energetic particles in space are called primary cosmic rays and consist mainly of protons (about ...
Marco Arcani +2 more
doaj +1 more source
Observation of gain operation mode in Ge:B BIB THz detector
AIP Advances, 2021 Blocked impurity band (BIB) detectors play an important role in astronomical detection from the mid-infrared to THz region. We demonstrated the field dependence of the photoresponse in BIB detectors using both experimental results and theoretical ...
Changyi Pan +6 more
doaj +1 more source
advligorts: The Advanced LIGO real-time digital control and data acquisition system
SoftwareX, 2021 The Advanced LIGO detectors are sophisticated opto-mechanical devices. At the core of their operation is feedback control. The Advanced LIGO project developed a custom digital control and data acquisition system to handle the unique needs of this new ...
Rolf Bork +6 more
doaj +1 more source
Properties and Patterns of Polarized Gravitational Waves
Universe, 2022 We discuss the polarization of gravitational radiation within the standard framework of linearized general relativity. The recent experimental discovery of gravitational waves provides the impetus to revisit the implications of the spin-rotation-gravity ...
Bahram Mashhoon, Sohrab Rahvar
doaj +1 more source
The Astrophysical Journal Letters, 2023 High-energy, long gamma-ray bursts (GRBs) can be generated by the core collapse of massive stars at the end of their lives. When they happen in the close-by universe they can be exceptionally bright, as seen from the Earth in the case of the recent ...
R. Battiston +70 more
doaj +1 more source
Review of Compton camera imaging technology development
He jishu, 2021 Compton camera (CC) is a new type gamma-ray imaging modality. Because CC has no mechanical collimation structure, it has unique advantages in detection efficiency compared with other gamma-ray imaging modalities.
WU Chuanpeng, LI Liang
doaj +1 more source