SIMBAD references

2007A&A...469..881J - Astronomy and Astrophysics, volume 469, 881-889 (2007/7-3)

XMM-Newton view of galaxy pairs: activation of quiescent black holes?

JIMENEZ-BAILON E., LOISEAU N., GUAINAZZI M., MATT G., ROSA-GONZALEZ D., PICONCELLI E. and SANTOS-LLEO M.

Abstract (from CDS):

We report on XMM-Newton observations of three nearby galaxy pairs, AM0707-273, AM1211-465, and AM2040-674. All six galaxies were previously classified as HII galaxies based on optical and IR spectroscopic analysis. All galaxies were detected with XMM-Newton and each member was isolated and analyzed independently. The X-ray spectra reveal strong evidence of AGN activity in the NE member of AM1211-465 pair. We measured a luminosity of 1.94+0.11–0.15x1042erg/s in the 2-10 keV band and the presence of a neutral FeKα line with a confidence level of 98.8%. The high nH value, 2.2±0.2x1022cm–2, would explain the misclassification of the source. Marginal evidence of AGN nature was found in the X-ray spectra of AM1211-465SW and AM0707-273E. The X-ray emission of the three remaining galaxies can be explained by starburst activity.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: nuclei - galaxies: general - X-rays: galaxies - X-rays: general

Status at CDS:  

Simbad objects: 17

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2020.06.04-13:55:20

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