Results 31 to 40 of about 209,821 (326)
Observational data on Galactic supernova remnants III: The supernova remnants within l = 270°-360° [PDF]
Serbian Astronomical Journal, 2004 We have collected all the available data of Galactic supernova remnants given in the literature. The data of Galactic supernova remnants located in the Galactic longitude interval l=270°-360°in all the spectral bands are represented in this work. We have
Guseinov O.H., Ankay A., Tagieva S.O.
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2022 Supervised Machine Learning (ML) models for solar flare prediction rely on accurate labels for a given input data set, commonly obtained from the GOES/XRS X-ray flare catalog. With increasing interest in utilizing ultraviolet (UV) and extreme ultraviolet
Kiera van der Sande +4 more
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Are optically-selected QSO catalogs biased ? [PDF]
, 1997 A thorough study of QSO-galaxy correlations has been done on a region close to the North Galactic Pole using a complete subsample of the optically selected CFHT/MMT QSO survey and the galaxy catalog of Odewahn and Aldering (1995).
Benitez, N. +2 more
core +2 more sources
Astrometric star catalogues as combination of Hipparcos/Tycho catalogues with ground-based observations [PDF]
Serbian Astronomical Journal, 2004 The successful ESA mission Hipparcos provided very precise parallaxes positions and proper motions of many stars in optical wavelength. Therefore it is a primary representation of International Celestial Reference System in this wavelength.
Vondrák J.
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Multi-Frequency Databases for AGN Investigation—Results and Perspectives
Frontiers in Astronomy and Space Sciences, 2017 Active Galactic Nuclei (AGNs) are characterized by emission of radiation over more than 10 orders of magnitude in frequency. Therefore, the execution of extensive surveys of the sky, with different types of detectors, is providing the attractive ...
Giovanni La Mura +9 more
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K2: A new method for the detection of galaxy clusters based on CFHTLS multicolor images
, 2009 We have developed a new method, K2, optimized for the detection of galaxy clusters in multicolor images. Based on the Red Sequence approach, K2 detects clusters using simultaneous enhancements in both colors and position.
Adami +50 more
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A New Revision of the HDEC (Henry Draper Extension Charts) Catalog
Open Astronomy, 2016 A new version of the HDEC (Henry Draper Extension Charts) catalog is presented. The catalog includes 88,548 entries, more than 3500 of which (components of binary systems) were earlier corrupted by an algorithmic error (1579 multiple systems were ...
Ashimbaeva N., Sementsov V.
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Catalogue of Bright IDS Stars with Extensive Cross-Identifications
Open Astronomy, 2014 A new catalogue of bright binary stars is presented. The catalogue1 includes bright IDS systems and bright spectroscopic binaries. Besides IDS data (coordinates, relative positions, magnitudes and spectral classification), the catalogue contains ...
Lipaeva N. A. +2 more
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Automatic Classification of Variable Stars in Catalogs with missing data
, 2013 We present an automatic classification method for astronomical catalogs with missing data. We use Bayesian networks, a probabilistic graphical model, that allows us to perform inference to pre- dict missing values given observed data and dependency ...
Pichara, Karim, Protopapas, Pavlos
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Library catalogs in the Web 2.0 environment
Cybrarians Journal, 2011 The study discusses the recent developments that have occurred or are expected to occur in library catalogs in the Web 2.0 environment, which include supporting beneficiary participation in content, which is one of the most important characteristics of ...
Mahmoud Khalifa
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