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DTSTART;TZID=Europe/Rome:20160322T114500
DTEND;TZID=Europe/Rome:20160322T124500
DTSTAMP:20260405T012639
CREATED:20160317T062227Z
LAST-MODIFIED:20160317T062227Z
UID:545-1458647100-1458650700@www.oa-roma.inaf.it
SUMMARY:High ionisation absorption in low mass X-ray binaries
DESCRIPTION:The advent of the new generation of X-ray telescopes yielded a significant step forward in our understanding of ionised absorption generated in the accretion discs of X-ray binaries. It appears now clear that these relatively weak and narrow absorption features\, sporadically present in the X-ray spectra of some systems\, are actually the signature of equatorial outflows\, which might carry away more matter than that being accreted. Therefore\, they play a major role in the accretion phenomenon. These outflows (or ionised atmospheres) are ubiquitous during the softer states but absent during the power-law dominated\, hard states\, suggesting a strong link with the state of the inner accretion disc\, presence of the radio-jet and the properties of the central source. I will review the current understanding of this field.
URL:https://www.oa-roma.inaf.it/event/high-ionisation-absorption-in-low-mass-x-ray-binaries/
LOCATION:Aula Gratton
CATEGORIES:Seminari
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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20160322T114500
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DTSTAMP:20260405T012639
CREATED:20160317T062227Z
LAST-MODIFIED:20160317T062227Z
UID:4658-1458647100-1458650700@www.oa-roma.inaf.it
SUMMARY:High ionisation absorption in low mass X-ray binaries
DESCRIPTION:The advent of the new generation of X-ray telescopes yielded a significant step forward in our understanding of ionised absorption generated in the accretion discs of X-ray binaries. It appears now clear that these relatively weak and narrow absorption features\, sporadically present in the X-ray spectra of some systems\, are actually the signature of equatorial outflows\, which might carry away more matter than that being accreted. Therefore\, they play a major role in the accretion phenomenon. These outflows (or ionised atmospheres) are ubiquitous during the softer states but absent during the power-law dominated\, hard states\, suggesting a strong link with the state of the inner accretion disc\, presence of the radio-jet and the properties of the central source. I will review the current understanding of this field.
URL:https://www.oa-roma.inaf.it/event/high-ionisation-absorption-in-low-mass-x-ray-binaries-2/
LOCATION:Aula Gratton
CATEGORIES:Seminari
END:VEVENT
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