Results 1 to 10 of about 13,031 (112)
Survey of Object-Based Data Reduction Techniques in Observational Astronomy
Open Physics, 2016 Dealing with astronomical observations represents one of the most challenging areas of big data analytics. Besides huge variety of data types, dynamics related to continuous data flow from multiple sources, handling enormous volumes of data is essential.
Łukasik Szymon +5 more
doaj +2 more sources
Automated data reduction workflows for astronomy [PDF]
Astronomy & Astrophysics, 2013 12 pages, 7 ...
Freudling, W. +7 more
openaire +3 more sources
A Model Estimator for Noisy Compact Emission Recovery in Radio Synthesis Imaging
The Astronomical Journal, 2023 Reconstruction of a noisy compact emission must consider not only the point-spread function but also the effect of noise. However, the traditional threshold method in widely-used CLEAN-based algorithms finds it difficult to effectively prevent noise in ...
L. Zhang, M. Zhang, B. Wang
doaj +1 more source
CEERS Epoch 1 NIRCam Imaging: Reduction Methods and Simulations Enabling Early JWST Science Results
The Astrophysical Journal Letters, 2023 We present the data release and data reduction process for the Epoch 1 NIRCam observations for the Cosmic Evolution Early Release Science Survey (CEERS). These data consist of NIRCam imaging in six broadband filters (F115W, F150W, F200W, F277W, F356W and
Micaela B. Bagley +39 more
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The Dark Energy Camera Plane Survey 2 (DECaPS2): More Sky, Less Bias, and Better Uncertainties
The Astrophysical Journal Supplement Series, 2023 Deep optical and near-infrared imaging of the entire Galactic plane is essential for understanding our Galaxy’s stars, gas, and dust. The second data release of the Dark Energy Camera (DECam) Plane Survey extends the five-band optical and near-infrared ...
Andrew K. Saydjari +12 more
doaj +1 more source
Improved Measurements of the IXPE Crab Polarization
The Astrophysical Journal, 2023 X-ray polarization from the Imaging X-ray Polarimetry Explorer (IXPE) provides an important new probe of the geometry of the pulsar emission zone and of particle acceleration in the surrounding pulsar wind nebula.
Josephine Wong +2 more
doaj +1 more source
Principles of the data reduction and first results of the fastscanning method for (sub)millimeter astronomy [PDF]
Astronomy & Astrophysics, 2002 Ground-based astronomical continuum observations at (sub)millimeter wavelengths are especially difficult, because the emission of the atmospheric water vapor is usually much stronger than any astronomical signal. We present here the principles of the data reduction and first results of a new observing method that accounts for the atmospheric emission ...
B. Weferling +3 more
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The Astrophysical Journal, 2023 Diffuse interstellar bands (DIBs) are broad absorption features associated with interstellar dust and can serve as chemical and kinematic tracers.
Andrew K. Saydjari +4 more
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Automated SpectroPhotometric Image REDuction (ASPIRED)
The Astronomical Journal, 2023 We provide a suite of public open-source spectral data-reduction software to rapidly obtain scientific products from all forms of long-slit-like spectroscopic observations.
Marco C. Lam +5 more
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Speckle Space–Time Covariance in High-contrast Imaging
The Astronomical Journal, 2023 We introduce a new framework for point-spread function subtraction based on the spatiotemporal variation of speckle noise in high-contrast imaging data where the sampling timescale is faster than the speckle evolution timescale.
Briley Lewis +4 more
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