Zobrazeno 1 - 10
of 805
pro vyhledávání: '"X-ray galaxies"'
Publikováno v:
Journal of Physical Studies, 25(4), 2022
We cross-matched the 4XMM-DR10 catalog with the HyperLEDA database and obtained the new sample of galaxies that contain X-ray sources. Excluding duplicate observations and false matches, we present a total of 7759 galaxies with X-ray sources. In the
Externí odkaz:
http://arxiv.org/abs/2210.10707
Autor:
Tugay, A., Shevchenko, S.
Publikováno v:
Odessa Astronomical Publications, 2019, Vol. 32, pp. 42-45
Population studies of the extragalactic objects are a major part of the universe large-scale structure study. Apart from radio, infrared, and visible wavelength bands, observations and further identification of extragalactic objects such as galaxies,
Externí odkaz:
http://arxiv.org/abs/1912.05860
An important constraint for galaxy evolution models is how much gas resides in galaxies, in particular at the peak of star formation z=1-3. We attempt a novel approach by letting long-duration Gamma Ray Bursts (LGRBs) x-ray their host galaxies and de
Externí odkaz:
http://arxiv.org/abs/1610.09379
Autor:
Tugay, Anatoliy V.
Publikováno v:
Multiwavelength AGN Surveys and Studies, Proceedings of the International Astronomical Union, IAU Symposium, Volume 304, (2014) pp. 168-170
New sample of X-ray galaxies selected from 2XMMi catalogue in SDSS region is analysed in this work. Spatial distribution and X-ray AGN spectral properties are discussed. A new method for extragalactic filament detection and description is proposed.
Externí odkaz:
http://arxiv.org/abs/1410.2969
Autor:
Tugay, A. V.
Eighteen bright X-ray emitting galaxies were found in nearby filaments within SDSS region. Basic X-ray spectral parameters were estimated for these galaxies using power law model with photoelectric absorption. A close pair of X-ray galaxies was found
Externí odkaz:
http://arxiv.org/abs/1311.4337
Autor:
A. V. Tugay, S. Yu. Shevchenko
Publikováno v:
Odessa Astronomical Publications, Vol 32, Iss 0, Pp 42-45 (2019)
Population studies of the extragalac- tic objects are a major part of the universe large-scale structure study. Apart from radio, infrared, and visible wavelength bands, observations and further identification of extragalactic objects such as galaxie
Externí odkaz:
https://doaj.org/article/942a81cb9e7f4a2680b825493a0f7de8
Akademický článek
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Autor:
Moran, Edward C.
A full understanding of the origin of the hard X-ray background requires a complete and accurate census of the distant galaxies that produce it. Unfortunately, distant X-ray galaxies tend to be very faint at all wavelengths, which hinders efforts to
Externí odkaz:
http://arxiv.org/abs/astro-ph/0407273
Akademický článek
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Mid-infrared photometry of the hosts of Narrow-Line X-ray Galaxies at 6 microns and 12 microns has been attempted with ISOCAM. No conclusive detections have been made. This implies that these are quiescent objects with little or no active star-format
Externí odkaz:
http://arxiv.org/abs/astro-ph/9812441