Results 11 to 20 of about 3,036 (288)
Focal length determination for the 60cm telescope at Astronomical station Vidojevica [PDF]
Serbian Astronomical Journal, 2012 The focal length of a telescope is an important parameter in determining the angular pixel size. This parameter is used for the purpose of determining the relative coordinates (angular separation and positional angle) of double and multiple ...
Cvetković Z. +5 more
doaj +3 more sources
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
Microwave Kinetic Inductance Detectors [PDF]
, 2005 Low temperature detectors have been a subject of intense interest to the scientific community over the last decade. These detectors work at very low temperatures, often well below 1 Kelvin, to minimize the noise in the measurement of photons.
Mazin, Benjamin A.
core +1 more source
Suitability of COTS InGaAs detectors for ground-based exoplanet detections around nearby M-dwarfs [PDF]
, 2023 In the search for exoplanets, the TESS mission shifts much of the focus in transit detection towards observing nearby cool stars.1 Many of the M-dwarf systems identified can be followed up from the ground with meter class telescopes or smaller to confirm
Kuo Tiong, B. C. +4 more
core +1 more source
Astronomical Camera Based on a CCD261-84 Detector with Increased Sensitivity in the Near-Infrared
Photonics, 2023 Herein, we describe the design, implementation and operation principles of an astronomical camera system, based on a large-format CCD261-84 detector with an extremely thick 200 μm substrate.
Irina Afanasieva +7 more
doaj +1 more source
Equalizing the Pixel Response of the Imaging Photoelectric Polarimeter Onboard the IXPE Mission
The Astronomical Journal, 2023 The Gas Pixel Detector is a gas detector, sensitive to the polarization of X-rays, currently flying onboard the Imaging X-ray Polarimetry Explorer (IXPE)—the first observatory dedicated to X-ray polarimetry.
John Rankin +20 more
doaj +1 more source