231 citations · 1k across the 16 of their papers we have counts for
17 papers
disnht: modeling X-ray absorption from distributed column densities
Nicola Locatelli, Gabriele Ponti, Stefano Bianchi
Collecting and analysing X-ray photons over either spatial or temporal scales encompassing varying optical depth values requires knowledge about the optical depth distribution. In…
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…
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…
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…
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…
Detection of large-scale X-ray bubbles in the Milky Way halo
P. Predehl, R. A. Sunyaev, W. Becker +25
The halo of the Milky Way provides a laboratory to study the properties of the shocked hot gas that is predicted by models of galaxy formation. There is observational evidence of e…