Independent analysis of μδ data of ILS and INDLS catalogs to obtain the spin of the bright Gaia DR2 reference frame [PDF]
The Gaia DR2 reference frame should be without relative rotation to the quasars (QSOs) and consistent with the International Celestial Reference System (ICRS).
Damljanović G. +2 more
doaj +3 more sources
Large Synoptic Survey Telescope: From science drivers to reference design [PDF]
In the history of astronomy, major advances in our understanding of the Universe have come from dramatic improvements in our ability to accurately measure astronomical quantities. Aided by rapid progress in information technology, current sky surveys are
Ivezić Ž. +19 more
doaj +1 more source
The 100 strongest radio point sources in the field of the Large Magellanic Cloud at 1.4 GHz [PDF]
We present the 100 strongest 1.4 GHz point sources from a new mosaic image in the direction of the Large Magellanic Cloud (LMC). The observations making up the mosaic were made using Australia Telescope Compact Array (ATCA) over a ten year period and ...
Payne J.L. +4 more
doaj +1 more source
New 20-cm radio-continuum study of the small Magellanic cloud - part III: Compact Hii regions [PDF]
We present and discuss a new catalogue of 48 compact Hii regions in the Small Magellanic Cloud (SMC) and a newly created deep 1420 MHz (λ=20 cm) radio-continuum image of the N19 region located in the southwestern part of the SMC.
Wong G.F. +5 more
doaj +1 more source
Observational data on galactic supernova remnants: I. The supernova remnants within l = 0◦ - 90◦ [PDF]
We have collected all the available data on Galactic supernova remnants given in the literature. The data on Galactic supernova remnants located in the Galactic longitude interval l=0◦-90◦ in all the spectral bands are presented in this work.
Guseinov O.H., Ankaj A., Tagieva S.O.
doaj +1 more source
Retrato de Fernando Pessoa redescoberto [PDF]
Durante a pesquisa realizada para a produção de um álbum biográfico de José Saramago, os editores, García Schnetzer e Viel, encontraram, num arquivo público da Madeira, uma imagem até então desconhecida de Fernando Pessoa.
García Schnetzer, Alejandro +1 more
doaj +1 more source
Literature for children in the Publishing House of I. P. Ladyzhnikov (Berlin, 1920–1930)
The purpose of the article is to fill the gap in the study of such an aspect of the activities of Russian-language foreign publishing houses as the release of literature for children and youth.
A. О. Anisimov
doaj +1 more source
20 cm VLA radio-continuum study of M31-images and point source catalogues DR2: Extraction of a supernova remnant sample [PDF]
We present Data Release 2 of the Point Source Catalogue created from a series of previously constructed radio-continuum images of M31 at λ=20 cm (v=1.4 GHz) from archived VLA observations.
Galvin T.J., Filipović M.D.
doaj +1 more source
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
doaj +1 more source
HFF-DeepSpace photometric catalogs of the 12 Hubble frontier fields, clusters, and parallels : photometry, photometric redshifts, and stellar masses [PDF]
We present Hubble multi-wavelength photometric catalogs, including (up to) 17 filters with the Advanced Camera for Surveys and Wide Field Camera 3 from the ultra-violet to near-infrared for the Hubble Frontier Fields and associated parallels.
Brammer, Gabriel B +16 more
core +4 more sources

