Odessa Astronomical Publications (Dec 2011)

РЕНТГЕНОВСКОЕ ИЗЛУЧЕНИЕ ГАЛАКТИК БЕЗ АКТИВНЫХ ЯДЕР

  • A. B. Тугай,
  • А. А. Василенко

DOI
https://doi.org/10.18524/1810-4215.2011.24.85085
Journal volume & issue
Vol. 24, no. 0
pp. 72 – 74

Abstract

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We perfirmed cross-correlation of SDSS galaxies and X-ray sources from 2XMMi catalogue. We selected galaxies with strong NII[6583] and OIII[5007] lines to divide them to starburst galaxies and AGNs. In result we obtained samples of 148 candidates to starburst galaxies and 138 AGNs. We built X-ray spectra for starburst galaxies I Zw 49, NGC4303, NGC4490 and NGC5907 and approximated them by powerlaw model with indexes 2.6, 2.8, 2.1 and 1.6 correspondingly. We also found that NGC4254 has thermal spectum with kT=0.2 keV. For NGC4254 and NGC4303 we obtained spectrum of galaxy disc without nuclear region.