Results 21 to 30 of about 221,645 (319)
RESULTS OF PROCESSING OF ASTRONEGATIVES WITH COMMERCIAL SCANNER
Odessa Astronomical Publications, 2014 Astrometric errors depending on the method of scanning with different spatial resolutions were studied with commercial scanner such as Epson Perfection V750 Pro.
Yu. I. Protsyuk +3 more
doaj +1 more source
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
The Two-Point Angular Correlation Function and BATSE Sky Exposure [PDF]
, 1997 The Two-Point Angular Correlation Function is a standard analysis tool used to study angular anisotropies. Since BATSE's sky exposure (the angular sampling of gamma-ray bursts) is anisotropic, the TPACF should at some point identify anisotropies in BATSE
Chen, Xiaoling, Hakkila, Jon
core +3 more sources
Odessa Astronomical Publications, 2014 The paper discusses and illustrates the steps of basic processing of digitized image of astro negatives. Software for obtaining of a rectangular coordinates and photometric values of objects on photographic plates was created in the environment ...
Yu. I. Protsyuk +2 more
doaj +1 more source
Meet the family − the catalog of known hot subdwarf stars
Open Astronomy, 2017 In preparation for the upcoming all-sky data releases of the Gaia mission, we compiled a catalog of known hot subdwarf stars and candidates drawn from the literature and yet unpublished databases.
Geier Stephan +8 more
doaj +2 more sources
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
The Astrophysical Journal, 1990 Les problemes de reduction systematique des catalogues d'etoiles, afin de creer un systeme positionnel uniforme et un systeme de mouvement propre standard, sont analyses.
L. G. Taff +2 more
openaire +1 more source
20cm VLA radio-continuum study of M31: Images and point source catalogues [PDF]
Serbian Astronomical Journal, 2012 We present a series of new high-sensitivity and high-resolution radio-continuum images of M31 at λ=20 cm (ν=1.4 GHz). These new images were produced by merging archived 20 cm radio-continuum observations from the Very Large Array (VLA) telescope.
Galvin T.J. +5 more
doaj +1 more source
Artificial Star Test for Crowded Field CCD Photometry
Open Astronomy, 2015 A new method of performing an artificial star test (AST) for crowded field stellar CCD photometry is proposed. This AST method is superior in the cases when it is necessary to account for varying photometric quality across the study field, arising due to
Stonkutė R., Vansevičius V.
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A Catalog of Active Galactic Nuclei from the First 1.5 Gyr of the Universe
Frontiers in Astronomy and Space Sciences, 2017 Active galactic nuclei (AGN) are prominent astrophysical objects that can be observed throughout the whole Universe. To understand the underlying physical processes and the different appearance of AGN types, extensive samples are needed.
Krisztina Perger +3 more
doaj +1 more source