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19992026
most citedPlanck 2015 results. XIII. Cosmological parameters

10.6k citations · 39.4k across the 206 of their papers we have counts for

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astro-ph.HE2022★ 36 cited

Polarization properties of the weakly magnetized neutron star X-ray binary GS 1826-238 in the high soft state

Fiamma Capitanio, Sergio Fabiani, Andrea Gnarini +94

The launch of the Imaging X-ray Polarimetry Explorer (IXPE) on 2021 December 9 has opened a new window in X-ray astronomy. We report here the results of the first IXPE observation…

astro-ph.GA2022★ 24 cited

The X-ray view of optically selected dual AGN

Alessandra De Rosa, Cristian Vignali, Paola Severgnini +12

We present a study of optically selected dual AGN with projected separations of 3--97~kpc. Using multi-wavelength (MWL) information (optical, X-rays, mid-IR), we characterized the…

astro-ph.HE2022★ 12 cited

Supermassive Black Hole Winds in X-rays: SUBWAYS. II. HST UV spectroscopy of winds at intermediate redshifts

M. Mehdipour, G. A. Kriss, M. Brusa +35

We present a UV spectroscopic study of ionized outflows in 21 active galactic nuclei (AGN), observed with the HST. The targets of the SUBWAYS sample were selected with the aim to p…

astro-ph.HE2022★ 44 cited

X-ray Polarization Observations of BL Lacertae

Riccardo Middei, Ioannis Liodakis, Matteo Perri +143

Blazars are a class of jet-dominated active galactic nuclei with a typical double-humped spectral energy distribution. It is of common consensus the Synchrotron emission to be resp…

astro-ph.HE2022★ 22 cited

Observations of 4U 1626-67 with the Imaging X-ray Polarimetry Explorer

Herman L. Marshall, Mason Ng, Daniele Rogantini +91

We present measurements of the polarization of X-rays in the 2-8 keV band from the pulsar in the ultracompact low mass X-ray binary 4U1626-67 using data from the Imaging X-ray Pola…

astro-ph.HE2022★ 89 cited

The X-ray Polarization View of Mrk~421 in an Average Flux State as Observed by the Imaging X-ray Polarimetry Explorer

Laura Di Gesu, Immacolata Donnarumma, Fabrizio Tavecchio +100

Particle acceleration mechanisms in supermassive black hole jets, such as shock acceleration, magnetic reconnection, and turbulence, are expected to have observable signatures in t…