Issue |
A&A
Volume 686, June 2024
|
|
---|---|---|
Article Number | A178 | |
Number of page(s) | 6 | |
Section | Catalogs and data | |
DOI | https://doi.org/10.1051/0004-6361/202449163 | |
Published online | 12 June 2024 |
An isotropic full-sky sample of optically selected blazars★
1
Institute for Nuclear Research of the Russian Academy of Sciences,
60th October Anniversary prospect 7a,
117312
Moscow,
Russia
e-mail: kudenko.ma19@physics.msu.ru
2
Physics Department, Lomonosov Moscow State University,
1-2 Leninskie Gory,
Moscow
119991,
Russia
Received:
4
January
2024
Accepted:
19
February
2024
Context. Various high-energy phenomena in the Universe are associated with blazars, which are powerful active galaxies with jets pointing at the observer. Novel results relating blazars to high-energy neutrinos, cosmic rays, and even possible manifestations of new particle physics, often emerge from statistical analyses of blazar samples, and uniform sky coverage is important for many of these studies.
Aims. Here, we construct a uniform full-sky catalog of blazars selected by their optical emission.
Methods. We defined the criteria of isotropy, making a special effort to cover the Galactic plane region, and compiled an isotropic sample of blazars with Gaia optical magnitudes of G < 18m, corrected for Galactic absorption. The sources were taken from full-sky samples selected by parsec-scale radio emission or by high-energy gamma-ray flux, both of which are known to efficiently select blazar-like objects.
Results. We present a catalog of 651 optically bright blazars, uniformly distributed in the sky, together with their radio, optical, X-ray, and gamma-ray fluxes, and an isotropic sample of 336 confirmed BL Lac type objects.
Conclusions. This catalog may be used in future statistical studies of energetic neutrinos, cosmic rays, and gamma rays.
Key words: catalogs
Full Tables 1 and 2 (catalogs) are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/686/A178
© The Authors 2024
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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