activity
20092026
most citedThe Chandra COSMOS Legacy survey: overview and point source catalog

511 citations · 6.8k across the 146 of their papers we have counts for

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46 papers · 1 filter

astro-ph.HE2026

Supermassive Black Hole Winds in X-rays -- SUBWAYS. VI. Interplay between the soft X-ray excess and ultra-fast outflows

V. E. Gianolli, P-O. Petrucci, S. Bianchi +42

We present a broadband, multiwavelength study of the interplay between the soft X-ray excess (SE), ultra-fast outflows (UFOs), and warm absorbers (WAs) in 21 active galactic nuclei…

astro-ph.HE2026

A relativistic inflow candidate in a quasar at cosmic noon

Yerong Xu, Xiurui Zhao, Elena Bertola +14

Cosmic noon () marks the peak epoch of cosmic star formation and black hole accretion activity, where strong accretion and outflows are expected. We report two candidate ab…

astro-ph.HE2026

Detection of episodic Ultra-fast Outflows in the Low-luminosity quasar Mrk 205 using XMM-Newton data

César Ivan Victoria-Ceballos, Anna Lia Longinotti, Yair Krongold +3

Ultra-fast outflows (UFOs) from Active Galactic Nuclei (AGN) are winds which reach velocities up to 0.3c, and show mass outflow rates of 0.01-1 and kinetic ener…

astro-ph.HE2026

AGN X-ray coronae at high luminosity: A broadband study of RBS 229 and PG 1407+265

Alessandro Leonardo Lai, Stefano Bianchi, Andrea Marinucci +8

Context. The X-ray emission of active galactic nuclei (AGNs) is commonly interpreted as arising from Comptonisation in a hot corona above the accretion disc. A prominent soft X-ray…

astro-ph.HE2026

The WISSHFUL program: the highest redshift UFO discovered in a non-lensed QSO

G. Lanzuisi, L. Borrelli, E. Piconcelli +28

We present the first results from the WISSHFUL program, an XMM-Newton heritage program targeting luminous QSOs at Cosmic Noon. We report on recent simultaneous XMM-Newton and NuSTA…

astro-ph.HE2026

Is XRISM/Resolve probing a "raining" absorber in Mrk 509?

M. Dadina, V. Missaglia, V. Braito +19

X-ray spectroscopy of AGN offers unique insights into the reprocessing of radiationand gas dynamics near SMBH. The Sey 1 galaxy Mrk 509 is an ideal laboratory for these studies sin…

astro-ph.HE2026

Unveiling the dynamics of the ultra-fast outflow in IRAS 13224-3809 with X-ray spectroscopy

Pierpaolo Condò, Francesco Tombesi, Marco Laurenti +9

IRAS 13224-3809 is one of the most intensively studied narrow-line Seyfert 1 galaxies, with a rich literature reporting diverse and sometimes contrasting interpretations of its com…

astro-ph.HE2026

Discovery of ultra-fast outflows with v in local bright active galactic nuclei

Laura Borrelli, Matteo Guainazzi, Giorgio Lanzuisi +5

Ultra-fast outflows (UFOs) are mildly relativistic (outflow velocity ) nuclear winds detected as blueshifted absorption lines from highly ionized, dense gas in the X-…

astro-ph.HE2026

Supermassive Black Hole Winds in X-rays: SUBWAYS V. Properties of hot coronae in quasars at intermediate redshift

S. Peluso, G. Lanzuisi, A. Comastri +25

We present the X-ray analysis of coronal properties in a statistically representative sample of 23 mostly radio-quiet AGN from the SUBWAYS campaign (SUpermassive Black holes Winds…

astro-ph.HE2026

PACHA: Probing AGN Coronae with High-redshift AGN

Xiurui Zhao, Elias Kammoun, Marco Ajello +18

The X-ray emission of active galactic nuclei (AGN) is generally attributed to inverse Compton scattering of accretion-disk photons by hot electrons in a compact corona. In local AG…

astro-ph.HE2025★ 5 cited

A Song of Lines and Winds: Tracing the Signatures of AGN Outflows in X-rays

M. Laurenti, F. Tombesi, P. Condò +14

Ultra-fast outflows (UFOs) are highly ionized, mildly relativistic winds seen in the X-ray spectra of active galactic nuclei (AGN) and are thought to contribute to AGN feedback and…

astro-ph.HE2025★ 3 cited

The Advanced X-ray Imaging Satellite (AXIS) Community Science Book

Michael Koss, Nafisa Aftab, Steven W. Allen +395

The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…

astro-ph.HE2025

XRISM/Resolve reveals the complex iron structure of NGC 7213: Evidence for radial stratification between inner disk and broad-line region

E. Kammoun, T. Kawamuro, K. Murakami +48

We present the first high-resolution X-ray spectrum of NGC 7213 obtained with XRISM/Resolve, supported by simultaneous XMM-Newton, NuSTAR, and SOAR optical data. The XRISM spectrum…

astro-ph.HE2024★ 15 cited

Investigating the interplay between the coronal properties and the hard X-ray variability of active galactic nuclei with NuSTAR

Roberto Serafinelli, Alessandra De Rosa, Alessia Tortosa +11

Active galactic nuclei (AGN) are extremely variable in the X-ray band down to very short timescales. However, the driver behind the X-ray variability is still poorly understood. Pr…

astro-ph.HE2024★ 6 cited

The XMM-Newton and NuSTAR view of IRASF11119+3257. I Detection of multiple UFO components and a very cold corona

G. Lanzuisi, G. Matzeu, P. Baldini +21

IRASF11119 is an ultra-luminous IR galaxy with post-merger morphology, hosting a type-1 QSO at z=0.189. Its 2013 Suzaku spectrum shows a prominent Ultra Fast Outflow (UFO) absorpti…

astro-ph.HE2024★ 4 cited

Winds of change: the nuclear and galaxy-scale outflows and the X-ray variability of 2MASS 0918+2117

P. Baldini, G. Lanzuisi, M. Brusa +21

Powerful outflows from active galactic nuclei (AGN) can significantly impact the gas reservoirs of their host galaxies. However, it is still unclear how these outflows can propagat…

astro-ph.HE2023★ 3 cited

The High Energy X-ray Probe (HEX-P): Bringing the Cosmic X-ray Background into Focus

Francesca Civano, Xiurui Zhao, Peter Boorman +29

Since the discovery of the cosmic X-ray background (CXB), astronomers have strived to understand the accreting supermassive black holes (SMBHs) contributing to its peak in the 10-4…

astro-ph.HE2023★ 3 cited

The High Energy X-ray Probe (HEX-P): The Circum-nuclear Environment of Growing Supermassive Black Holes

P. G. Boorman, N. Torres-Albà, A. Annuar +32

Ever since the discovery of the first Active Galactic Nuclei (AGN), substantial observational and theoretical effort has been invested into understanding how massive black holes ha…

astro-ph.HE2023★ 1 cited

The High Energy X-ray Probe (HEX-P): Probing the physics of the X-ray corona in active galactic nuclei

E. Kammoun, A. M. Lohfink, M. Masterson +28

The hard X-ray emission in active galactic nuclei (AGN) and black hole X-ray binaries is thought to be produced by a hot cloud of electrons referred to as the corona. This emission…

astro-ph.HE2023★ 20 cited

X-ray properties and obscured fraction of AGN in the J1030 Chandra field

Matilde Signorini, Stefano Marchesi, Roberto Gilli +13

The 500ks Chandra ACIS-I observation of the field around the quasar SDSS J1030+0524 is currently the 5th deepest extragalactic X-ray survey. The rich multi-band coverage o…

astro-ph.HE2023★ 16 cited

The universal shape of the X-ray variability power spectrum of AGN up to

M. Paolillo, I. E. Papadakis, W. N. Brandt +12

We study the ensemble X-ray variability properties of Active Galactic Nuclei (AGN) over a large range of timescales (20 ks 14 yrs), redshift (), lu…

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★ 55 cited

Supermassive Black Hole Winds in X-rays -- SUBWAYS. I. Ultra-fast outflows in QSOs beyond the local Universe

G. A. Matzeu, M. Brusa, G. Lanzuisi +48

We present a new X-ray spectroscopic study of luminous () active galactic nuclei (AGNs) at intermed…

astro-ph.HE2022★ 6 cited

Breaking the rules at 0.45: the rebel case of RBS 1055

A. Marinucci, G. Vietri, E. Piconcelli +5

We report on a long (250 ks) NuSTAR observation of the bright quasar RBS 1055 performed in March 2021, and archival XMM-Newton pointings (185 ks) taken in July 2014. An optical spe…