activity
20082026
most citedUbiquitous equatorial accretion disc winds in black hole soft states

426 citations · 3.7k across the 64 of their papers we have counts for

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Showing 2021Show all

8 papers · 1 filter

astro-ph.HE2021

Flaremodel: An open-source Python package for one-zone numerical modelling of synchrotron sources

Y. Dallilar, S. von Fellenberg, M. Bauböck +13

Synchrotron processes, the radiative processes associated with the interaction of energetic charged particles with magnetic field, are of interest in many areas in astronomy, from…

astro-ph.HE2021★ 10 cited

A Swift study of long-term changes in the X-ray flaring properties of Sagittarius A*

A. Andrés, J. van den Eijnden, N. Degenaar +12

The radiative counterpart of the supermassive black hole at the Galactic Centre, Sagittarius A*, displays flaring emission in the X-ray band atop a steady, quiescent level. Flares…

astro-ph.GA2021★ 24 cited

Transient obscuration event captured in NGC~3227 II. Warm absorbers and obscuration events in archival XMM-Newton and NuSTAR observations

Yijun Wang, Jelle Kaastra, Missagh Mehdipour +18

The relation between warm absorber (WA) outflows of AGN and nuclear obscuration activities caused by optically-thick clouds (obscurers) crossing the line of sight is unclear. NGC 3…

astro-ph.HE2021★ 26 cited

A timing-based estimate of the spin of the black hole in MAXI J1820+070

Yash Bhargava, Tomaso Belloni, Dipankar Bhattacharya +2

MAXI J1820+070 (ASSASN-18ey) is a Black hole X-ray binary discovered in 2018. The brightness of the source triggered multi-wavelength campaigns of this source from different observ…

astro-ph.HE2021★ 31 cited

The X-ray binary population in the Galactic Center revealed through multi-decade observations

Kaya Mori, Charles J. Hailey, Theo Y. E. Schutt +6

We present an investigation of the quiescent and transient X-ray binaries (XRBs) of the Galactic Center (GC). We extended our Chandra analysis of the non-thermal X-ray sources, loc…

astro-ph.HE2021★ 64 cited

Constraining particle acceleration in Sgr A* with simultaneous GRAVITY, Spitzer, NuSTAR and Chandra observations

R. Abuter, A. Amorim, M. Bauböck +81

We report the time-resolved spectral analysis of a bright near-infrared and moderate X-ray flare of Sgr A*. We obtained light curves in the -, -, and -bands in the mid- an…

astro-ph.HE2021★ 220 cited

X-ray Quasi-Periodic Eruptions from two previously quiescent galaxies

R. Arcodia, A. Merloni, K. Nandra +21

Quasi-Periodic Eruptions (QPEs) are extreme high-amplitude bursts of X-ray radiation recurring every few hours and originating near the central supermassive black holes in galactic…

astro-ph.GA2021★ 50 cited

The Galactic center chimneys: The base of the multiphase outflow of the Milky Way

G. Ponti, M. R. Morris, E. Churazov +2

Outflows and feedback are key ingredients of galaxy evolution. Evidence for an outflow arising from the Galactic center (GC) has recently been discovered at different wavelength. W…