activity
20142026
most citedA fast and long-lived outflow from the supermassive black hole in NGC 5548

247 citations · 1.8k across the 57 of their papers we have counts for

collaborators
Showing 2023Show all

7 papers · 1 filter

astro-ph.HE2023★ 39 cited

Highly Significant Detection of X-Ray Polarization from the Brightest Accreting Neutron Star Sco X-1

Fabio La Monaca, Alessandro Di Marco, Juri Poutanen +116

The Imaging X-ray Polarimetry Explorer (IXPE) measured with high significance the X-ray polarization of the brightest Z-source Scorpius X-1, resulting in the nominal 2-8 keV energy…

astro-ph.HE2023★ 4 cited

Tracking the X-ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition

Adam Ingram, Niek Bollemeijer, Alexandra Veledina +120

We report on an observational campaign on the bright black hole X-ray binary Swift J1727.81613 centered around five observations by the Imaging X-ray Polarimetry Explorer (IXPE)…

astro-ph.HE2023★ 1 cited

IXPE observation confirms a high spin in the accreting black hole 4U 1957+115

L. Marra, M. Brigitte, N. Rodriguez Cavero +113

We present the results of the first X-ray polarimetric observation of the low-mass X-ray binary 4U 1957+115, performed with the Imaging X-ray Polarimetry Explorer in May 2023. The…

astro-ph.HE2023

Discovery of a variable energy-dependent X-ray polarization in the accreting neutron star GX 5-1

Sergio Fabiani, Fiamma Capitanio, Rosario Iaria +116

We report on the coordinated observations of the neutron star low-mass X-ray binary (NS-LMXB) \gx in X-rays (IXPE, NICER, Nustar and INTEGRAL), optical (REM and LCO), near-infrared…

astro-ph.HE2023★ 2 cited

Discovery of X-ray Polarization from the Black Hole Transient Swift J1727.8-1613

Alexandra Veledina, Fabio Muleri, Michal Dovciak +113

We report the first detection of the X-ray polarization of the bright transient Swift J1727.8-1613 with the Imaging X-ray Polarimetry Explorer. The observation was performed at the…

astro-ph.HE2023★ 26 cited

First X-ray polarization measurement confirms the low black-hole spin in LMC X-3

Jiří Svoboda, Michal Dovčiak, James F. Steiner +109

X-ray polarization is a powerful tool to investigate the geometry of accreting material around black holes, allowing independent measurements of the black hole spin and orientation…

astro-ph.HE2023

A remarkably stable accretion disc in the Seyfert galaxy MCG-5-23-16

Roberto Serafinelli, Andrea Marinucci, Alessandra De Rosa +12

MCG-5-23-16 is a Seyfert 1.9 galaxy at redshift z=0.00849. We analyse here the X-ray spectra obtained with XMM-Newton and NuSTAR data, which are the first contemporaneous observati…