Results 11 to 20 of about 37,353 (294)
Benchmarking SQL on MapReduce systems using large astronomy databases [PDF]
, 2015 International audienceIn the era of bigdata, with a massive set of digital information of unprecedented volumes being collected and/or produced in several application domains , it becomes more and more difficult to manage and query large data ...
Hacid, Mohand-Saïd +2 more
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Safeguarding Old and New Journal Tables for the VO: Status for Extragalactic and Radio Data
Data Science Journal, 2009 Independent of established data centers, and partly for my own research, since 1989 I have been collecting the tabular data from over 2600 articles concerned with radio sources and extragalactic objects in general. Optical character recognition (OCR) was
Heinz Andernach
doaj +4 more sources
Automatic Classification of Spectra with IEF-SCNN
Universe, 2023 Telescopes such as the Large Sky Area Multi-Object Spectroscopic Telescope and the Sloan Digital Sky Survey have produced an extensive collection of spectra, challenging the feasibility of manual classification in terms of accuracy and efficiency.
Jingjing Wu +4 more
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The Astrophysical Journal Supplement Series, 2023 The young massive OB association Cygnus OB2, in the Cygnus X complex, is the closest (∼1400 pc) star-forming region to the Sun hosting thousands of young low-mass stars and up to 1000 OB stars, among which are some of the most massive stars known in our ...
M. G. Guarcello +6 more
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The Astrophysical Journal Supplement Series, 2023 The eighteenth data release (DR18) of the Sloan Digital Sky Survey (SDSS) is the first one for SDSS-V, the fifth generation of the survey. SDSS-V comprises three primary scientific programs or “Mappers”: the Milky Way Mapper (MWM), the Black Hole Mapper (
Andrés Almeida +154 more
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All Spectral Type LAMOST Spectra Library (ATLAS)
The Astrophysical Journal Supplement Series, 2023 We present an empirical stellar spectra library, ATLAS, with resolution R ∼ 1800 and wavelength coverage from 3800–8700 Å. These spectra are homogeneously observed by the Large Sky Area Multi-Object Fiber Spectroscopic Telescope and have been released in
Wei Ji +6 more
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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 +10 more
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Completeness of the NASA/IPAC Extragalactic Database (NED) Local Volume Sample
The Astrophysical Journal Supplement Series, 2023 We introduce the NASA/IPAC Extragalactic Database (NED) Local Volume Sample (NED-LVS), a subset of ∼1.9 million objects with distances out to 1000 Mpc.
D. O. Cook +15 more
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The Universe on a Desktop: Observational Astronomy Simulations in the Instructional Laboratory [PDF]
, 2000 Though the value of hands-on learning has long been recognised by educators, it is difficult to design laboratories in astronomy classes that present realistic astrophysical techniques to undergraduate students.
Marschall, Laurence A.
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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 +4 more
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