Results 21 to 30 of about 5,542,325 (204)
Investigation of a resistive anode detector for astronomical spectroscopy [PDF]
, 2015 A large format two dimensional photon counting detector has been evaluated as a detector for astronomical spectroscopy. The design comprises an 320 photocathode, a tandem MCP gain stage and a circular arc terminated resisitive anode to provide ...
Clampin, Mark
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The Astrophysical Journal, 2022 In this work, we present polarization profiles for 23 millisecond pulsars observed at 820 and 1500 MHz with the Green Bank Telescope as part of the NANOGrav pulsar timing array.
H. M. Wahl +30 more
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A Method to Measure Photometries of Moderately Saturated UVOT Sources
The Astrophysical Journal Supplement Series, 2023 For bright transients such as gamma-ray bursts (GRBs), the Ultra-Violet/Optical Telescope (UVOT) operates under event mode at early phases, which records incident positions and the arrival time for each photon.
Hao Zhou +4 more
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Query driven visualization of astronomical catalogs [PDF]
, 2011 Interactive visualization of astronomical catalogs requires novel techniques due to the huge volumes and complex structure of the data produced by existing and upcoming astronomical surveys.
Hugo Buddelmeijer +6 more
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The NASA Astrophysics Data System: Free Access to the Astronomical Literature On-Line and through Email [PDF]
, 2001 The Astrophysics Data System (ADS) provides access to the astronomical literature through the World Wide Web. It is a NASA funded project and access to all the ADS services is free to everybody world-wide.
Kurtz, Michael J. +4 more
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Analyzing astronomical data with machine learning techniques
Astronomical and Astrophysical Transactions, 2022 Classification is a popular task in the field of machine learning (ML) and artificial intelligence (AI), and it happens when outputs are categorical variables. There are a wide variety of models that attempt to draw some conclusions from observed values, so classification algorithms predict categorical class labels for use in classifying new data ...
openaire +2 more sources
Dark Matter Indirect Detection [PDF]
EPJ Web of Conferences, 2020 This is an overview of recent developments and future prospects in the search for dark matter and new physics with astronomical and astro-particle techniques.
Profumo Stefano
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Some Astronomical Applications of Cross-Correlation Techniques. [PDF]
The Astrophysical Journal, 1965 Cross-correlation techniques have been used for many years to increase the signal-to-noise ratio of a wide variety of analogue and digital data. A large literature describing these methods exists, and many clever applications have been developed (see Fellgett 1953, and esp. Woodward 1955, for a basic mathematical development and applications).
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Astrometric Calibration and Performance of the Dark Energy Spectroscopic Instrument Focal Plane
The Astronomical Journal, 2023 The Dark Energy Spectroscopic Instrument, consisting of 5020 robotic fiber positioners and associated systems on the Mayall telescope at Kitt Peak, Arizona, is carrying out a survey to measure the spectra of 40 million galaxies and quasars and produce ...
S. Kent +48 more
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Snow Depth Variations Estimated from GPS-Reflectometry: A Case Study in Alaska from L2P SNR Data
Remote Sensing, 2016 Snow is a water resource and plays a significant role in the water cycle. However, traditional ground techniques for snow monitoring have many limitations, e.g., high-cost and low resolution. Recently, the new Global Positioning System-Reflectometry (GPS-
Shuanggen Jin +2 more
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