Results 21 to 30 of about 431,604 (288)

Time Series Analysis Methods and Detectability Factors for Ground-Based Imaging of the LCROSS Impact Plume

Remote Sensing, 2022
On 9 October 2009, multiple telescopes were used in a coordinated international observing campaign to acquire ground-based time series imaging to monitor the evolution of the impact plume from NASA’s Lunar CRater Observation and Sensing Satellite (LCROSS)
Paul D. Strycker, Nancy J. Chanover, Ruth L. Temme, Jonathan M. Schotte, Payton L. Mueller, Emily L. Karls   +5 more
doaj   +1 more source

Toward Machine-learning-based Metastudies: Applications to Cosmological Parameters

The Astrophysical Journal Supplement Series, 2023
We develop a new model for automatic extraction of reported measurement values from the astrophysical literature, utilizing modern natural language processing techniques.
Tom Crossland, Pontus Stenetorp, Daisuke Kawata, Sebastian Riedel, Thomas D. Kitching, Anurag Deshpande, Tom Kimpson, Choong Ling Liew-Cain, Christian Pedersen, Davide Piras, Monu Sharma   +10 more
doaj   +1 more source

Data Provenance and Management in Radio Astronomy: A Stream Computing Approach [PDF]

, 2011
New approaches for data provenance and data management (DPDM) are required for mega science projects like the Square Kilometer Array, characterized by extremely large data volume and intense data rates, therefore demanding innovative and highly efficient
Biem, Alain, Elmegreen, Bruce, Ensor, Andrew, Gulyaev, Sergei, Mahmoud, Mahmoud S.   +4 more
core   +2 more sources

Analysis of Zeeman effect data in radio astronomy

The Astrophysical Journal Supplement Series, 1990
The analysis of Zeeman effect data in radio astronomy is discussed; in particular, previous techniques are extended to include the case of low signal-to-noise ratios. Three statistical techniques for estimating the line-of-sight magnetic field are considered: maximum likelihood, least-squares, and Wiener filters.
R. J. Sault, N. E. B. Killeen, J. Zmuidzinas, R. Loushin   +3 more
openaire   +1 more source

A new seismic analysis of Alpha Centauri [PDF]

, 2003
Models of alpha Cen A & B have been computed using the masses determined by Pourbaix et al. (2002) and the data derived from the spectroscopic analysis of Neuforge and Magain (1997).
Briquet, M., Dupret, M. -A., Montalban, J., Noels, A., Scuflaire, R., Thoul, A., Vatovez, B.   +6 more
core   +1 more source

Using Contour Trees in the Analysis and Visualization of Radio Astronomy Data Cubes [PDF]

, 2021
The current generation of radio and millimeter telescopes, particularly the Atacama Large Millimeter Array (ALMA), offers enormous advances in observing capabilities. While these advances represent an unprecedented opportunity to facilitate scientific understanding, the increased complexity in the spatial and spectral structure of these ALMA data cubes
Rosen, Paul, Seth, Anil, Mills, Betsy, Ginsburg, Adam, Kamenetzky, Julia, Kern, Jeff, Johnson, Chris R., Wang, Bei   +7 more
openaire   +2 more sources

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Research Data in Astronomy: Assessing its Impact and Visibility through a Bibliometric Analysis

Bulletin of the AAS, 2022
In the context of the Open Access and Open Science initiatives, Research Data Management becomes relevant and of current interest to researchers, libraries and institutions that contribute to the development of scientific knowledge. Particularly in Astronomy, it is a challenge to convert, standardize, process and arrange large volumes of information ...
Cortes-Rodriguez, Patricio, Depoortere, Denise, Opazo-Calfin, Lucy   +2 more
openaire   +3 more sources

Astronomical Data Analysis and Sparsity: from Wavelets to Compressed Sensing [PDF]

, 2009
Wavelets have been used extensively for several years now in astronomy for many purposes, ranging from data filtering and deconvolution, to star and galaxy detection or cosmic ray removal.
Bobin, Jerome, Starck, Jean-Luc
core   +3 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source