Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27916
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kalamkar, M. | en_US |
dc.contributor.author | CASELLA, Piergiorgio | en_US |
dc.contributor.author | O'Brien, K. | en_US |
dc.contributor.author | Uttley, P. | en_US |
dc.contributor.author | Maccarone, T. | en_US |
dc.date.accessioned | 2020-10-22T10:40:14Z | - |
dc.date.available | 2020-10-22T10:40:14Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27916 | - |
dc.description.abstract | Fast variability in X-ray binaries has been studied for many decades, which is associated with accretion flows (in X-rays) and recently confirmed from jets (at least in the infra-red band). I will present results of observations of a black hole X-ray binary in hard state with simultaneous coverage in X-ray, optical and infra-red bands. A Quasi Periodic Oscillation (QPO) is detected for the first time in infra-red. Interestingly, the QPO is also detected in optical and the frequency in both these bands is half the frequency of the QPO in X-rays (classified as type-C) in the broad 0.3-60 keV range. The infra-red power spectrum also exhibits broad-band noise similar to the X-ray power spectrum and is correlated. Hence, we see strong correlated variability in the emission from the accretion disk, corona/hot flow and the jet. With the known origin of X-ray variability in accretion flows, I will discuss if this can manifest itself in jets providing a mechanism for jet variability in the framework of existing models (e.g., Ingram & Done 2011, Veledina et al. 2013, Drappeau et al. 2015). This will provide strong constraints on the structure and geometry of these systems and insight into their disk-jet coupling. <P /> | en_US |
dc.language.iso | eng | en_US |
dc.title | Fast multi-wavelength broad-band and QPO variability in a black hole X-ray binary: accretion flow and/or a jet origin? | en_US |
dc.type | Multimedia | - |
dc.identifier.url | https://www.cosmos.esa.int/web/xmm-newton/2015-workshop/#proceedings | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.firstpage | 39 | en_US |
dc.description.numberofauthors | 5 | en_US |
dc.relation.ispartofbook | The Extremes of Black Hole Accretion | en_US |
dc.relation.conferencename | XMM-Newton 2015 Science Workshop | en_US |
dc.relation.conferenceplace | Madrid, Spain | en_US |
dc.relation.conferencedate | 8-10 June, 2015 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 298 Altro | - |
dc.identifier.adsbibcode | 2015ebha.confE..39K | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Multimedia | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0002-0752-3301 | - |
Appears in Collections: | 4.09 Prodotti multimediali |
Files in This Item:
File | Description | Size | Format | |
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MKalamkar_t.pdf | Talk | 325.58 kB | Adobe PDF | View/Open |
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