A search for hyperluminous X-ray sources in the XMM-Newton source catalogтезисы доклада

Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.

Работа с тезисами доклада


[1] A search for hyperluminous x-ray sources in the xmm-newton source catalog / I. Zolotukhin, N. Webb, O. Godet et al. // The X-ray Universe 2014, edited by Jan-Uwe Ness. — 2014. — P. 215. We present a method to search for off-nuclear X-ray sources in the XMM-Newton source catalog by cross-matching it with large spectroscopic galaxy catalogs (e.g. SDSS) using special non-central match condition. Known distances to expected host galaxies then allow to select X-ray sources from their outskirts within specific luminosity range, 10^{41} < L_{X} < 10^{44} erg s^{-1}. We attempt to discard various possible contaminating foreground and background object classes such as AGN, BL Lacs, Galactic stars and compact objects by analyzing broadband radio-to-X-ray spectral energy distribution properties of selected sources available from other public wide area surveys. As an early result of our method we present several candidates to hyperluminous X-ray sources with high X-ray-to-optical flux ratios that can hardly be explained by invoking any conventional object type.

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