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

dc.creatorDANIEL ROSA GONZALEZ
dc.date2007
dc.date.accessioned2023-07-25T16:22:48Z
dc.date.available2023-07-25T16:22:48Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/999
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7806199
dc.descriptionWe 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 1.94₋₀ׅ₁₅⁺⁰˙¹¹ x 10⁴² erg/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 ± 0.2 × 10²² cm⁻², would explain the misclassification of the source. Marginal evidence of AGN nature was found in the X-ray spectra of AM1211-465SWand AM0707-273E. The X-ray emission of the three remaining galaxies can be explained by starburst activity.
dc.formatapplication/pdf
dc.languageeng
dc.publisherAstronomy & Astrophysics
dc.relationcitation:Rosa González, D., et al., (2007). XMM-Newton view of galaxy pairs: activation of quiescent black holes?, Astronomy & Astrophysics , Vol. 469(3): 881-889
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/21
dc.subjectinfo:eu-repo/classification/cti/21
dc.titleXMM-Newton view of galaxy pairs: activation of quiescent black holes?
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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