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Emission from the accretion disc

Accretion disc–corona and jet emission from the radio-loud narrow-line Seyfert 1 galaxy RX J1633.3+4719

Accretion disc–corona and jet emission from the radio-loud narrow-line Seyfert 1 galaxy RX J1633.3+4719

... The disc temperature inferred from the soft excess is at least a factor of two lower than that found for the canonical soft excess emission from radio-quiet ...UV emission is too strong ...

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Modelling accretion disc emission with generalized temperature profile and its effect on AGN spectral energy distribution

Modelling accretion disc emission with generalized temperature profile and its effect on AGN spectral energy distribution

... with emission from an accretion disc with a generalized radial temperature profile, in order to account for the intrinsic spectra which are found to be generally redder than the model ...

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Studying Accretion Disc Winds with X-ray Spectroscopy

Studying Accretion Disc Winds with X-ray Spectroscopy

... ranging from 200 to 1000 ...launched from the accretion disc, and could be the progenitor of the UV absorption features observed at comparable velocities, but the latter likely originate at ...

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The eccentric accretion disc of the black hole A0620 00

The eccentric accretion disc of the black hole A0620 00

... eccentric disc to be a viable explanation for the observed phenomena, and the regions responsible for the crescent emission are not constant by any ...clear from the constant image that the inner ...

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Investigating the structure of the accretion disc in WZ Sge from multiwaveband time-resolved spectroscopic observations - II

Investigating the structure of the accretion disc in WZ Sge from multiwaveband time-resolved spectroscopic observations - II

... symmetric accretion disc, and a phase offset larger than zero in systems having asymmetries in their ...the accretion disc and a considerable fraction of the total emission-line ...show ...

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T Tauri stars : mass accretion and X ray emission

T Tauri stars : mass accretion and X ray emission

... mass accretion rates and accretion filling ...wedge-shaped accretion disc, with an opening angle of approximately 10 ◦ ...isothermal accretion flows where material leaves the ...

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CiteSeerX — Changes in the structure of the accretion disc of EX Draconis through the outburst cycle

CiteSeerX — Changes in the structure of the accretion disc of EX Draconis through the outburst cycle

... of disc flar- ing in EX Dra during outburst, it seems the flaring is not enough to account for the amplitude of the variation in the uneclipsed ...both disc flaring and variable uneclipsed wind ...

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Accretion disc time lag distributions : applying CREAM to simulated AGN light curves

Accretion disc time lag distributions : applying CREAM to simulated AGN light curves

... variability from the ...continuum emission from the BLR. The diffuse-cloud-continuum emission is a combination of reflected accretion disc continuum and thermal- non-line ...

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High Density Reflection Spectroscopy – II. The density of the inner black hole accretion disc in AGN

High Density Reflection Spectroscopy – II. The density of the inner black hole accretion disc in AGN

... We consider all the available archival XMM-Newton observations for each AGN. A complete list of the XMM- Newton observations considered in this work is in Table A1. We extract EPIC-pn products using SAS 16.1.0, after ...

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A new way to measure supermassive black hole spin in accretion disc-dominated active galaxies.

A new way to measure supermassive black hole spin in accretion disc-dominated active galaxies.

... the disc emission is relatively well understood, it is accom- panied in both BHB and AGN by coronal emission to much higher energies whose origin is much less ...coronal emission below 1 ...

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X-ray and UV correlation in the quiescent emission of Cen X-4, evidence of accretion and reprocessing

X-ray and UV correlation in the quiescent emission of Cen X-4, evidence of accretion and reprocessing

... timescales from days to months, with the strongest quiescent variability a factor of 22 drop in the X-ray count rate in only 4 ...band) emission are correlated on timescales down to less than 110 ...UV ...

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Accretion by the Galaxy

Accretion by the Galaxy

... lines from species such as Fexvii that should form as gas cools through ∼ 10 6 ...accompany accretion onto compact objects, in this case the black holes that reside at the centres of ...of disc ...

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Blinded by the light: on the relationship between CO first overtone emission and mass accretion rate in massive young stellar objects

Blinded by the light: on the relationship between CO first overtone emission and mass accretion rate in massive young stellar objects

... why disc-tracing CO first overtone (or ‘bandhead’) emission is not a ubiquitous feature in low- to medium-resolution spectra of massive young stellar objects (MYSOs), but instead is only detected towards ...

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Accretion into and emission from black holes

Accretion into and emission from black holes

... of stellar mass or greater which are in binary systems or galactic nuclei. The remaining three papers deal with the quantum mechanical emission of particles by b[r] ...

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Accretion disc dynamics: magnetoseismology

Accretion disc dynamics: magnetoseismology

... • inhomogeneity: continuous ranges for slow/Alfvén, clustering possibilities of discrete modes due to gravity (g−modes) and p−modes clustering to infinity (fast), instabilities possible.[r] ...

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Early disc accretion as the origin of abundance anomalies in globular clusters

Early disc accretion as the origin of abundance anomalies in globular clusters

... Globular clusters (GCs), once thought to be well approximated as simple stellar populations (i.e. all stars having the same age and chemical abundance), are now known to host a vari- ety of anomalies, such as multiple ...

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Early disc accretion as the origin of abundance anomalies in globular clusters

Early disc accretion as the origin of abundance anomalies in globular clusters

... the disc sweep up model, where the disc accretion is proportional to the stellar velocity and time spent in the ...follows from the orbits presented in ...inferred from multiple ...

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Variable emission from a gaseous disc around a metal-polluted white dwarf

Variable emission from a gaseous disc around a metal-polluted white dwarf

... II emission lines is illustrated in ...gaseous disc, we measure the equivalent widths of the emission ...II emission lines in 2008, which subsequently faded by a factor ...II emission ...

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Long-term Nonlinear Behaviour of the Magnetorotational Instability in a Localised Model of an Accretion Disc

Long-term Nonlinear Behaviour of the Magnetorotational Instability in a Localised Model of an Accretion Disc

... of accretion. In an accretion disc the dissipative length-scale is much less than we considered here and so we conclude that in a disc there will be a significant enhancement to the rate of ...

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Role of local absorption on the X-ray emission from MHD accretion shocks in classical T Tauri stars

Role of local absorption on the X-ray emission from MHD accretion shocks in classical T Tauri stars

... X-ray emission from MHD accre- tion shocks in classical T Tauri stars Bonito 1 , 2 , a , Orlando 2 , Argiroffi 1 , 2 , Miceli 2 , Reale 1 , 2 , Peres 1 , 2 , Matsakos 3 , 4 , 5 , Stehle 5 , and Ibgui 5 1 ...

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