activity
20192026
most citedX-ray Quasi-Periodic Eruptions from two previously quiescent galaxies

220 citations · 256 across the 11 of their papers we have counts for

collaborators

12 papers

astro-ph.HE2026

XRISM Discovery of Multiple Ionized Fe-K Emission and Absorption Components in Centaurus A

Taishu Kayanoki, Yasushi Fukazawa, Junjie Mao +13

We present the first clear detection of ionized Fe-K emission and absorption components in the nearby radio galaxy Centaurus A, revealed by the high-resolution XRISM/Resolve detect…

astro-ph.HE2026★ 1 cited

A comprehensive catalogue of high-mass X-ray binaries in the Large Magellanic Cloud detected during the first eROSITA all-sky survey

D. Kaltenbrunner, C. Maitra, F. Haberl +9

The Magellanic Clouds, the closest star-forming galaxies to the Milky Way, offer an excellent environment to study high-mass X-ray binaries. While the Small Magellanic Cloud has be…

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 analysis of the complex Fe K line in Centaurus A

David Bogensberger, Yuya Nakatani, Tahir Yaqoob +14

We analyze the high-resolution XRISM/Resolve spectrum of the Fe K emission line of the nearest active galactic nucleus, in Centaurus A. The line features two narrow and resolved…

astro-ph.HE2024

Superluminal proper motion in the X-ray jet of Centaurus A

David Bogensberger, Jon M. Miller, Richard Mushotzky +4

The structure of the jet in Cen A is likely better revealed in X-rays than in the radio band, which is usually used to investigate jet proper motions. In this paper, we analyze Cha…

astro-ph.HE2024

Investigating the Mass of the Black Hole and Possible Wind Outflow of the Accretion Disk in the Tidal Disruption Event AT2021ehb

Xin Xiang, Jon M. Miller, Abderahmen Zoghbi +11

Tidal disruption events (TDEs) can potentially probe low-mass black holes in host galaxies that might not adhere to bulge or stellar-dispersion relationships. At least initially, T…

astro-ph.HE2024★ 4 cited

Characterisation of the X-ray point source variability in the eROSITA south ecliptic pole field

David Bogensberger, Kirpal Nandra, Mara Salvato +11

Aims: During the Spectrum Roentgen Gamma (SRG)/ eROSITA all-sky surveys, X-ray sources close to the South Ecliptic Pole (SEP) are observed almost every 4 hours. We aim to identify…

astro-ph.IM2024★ 6 cited

Characterising X-ray variability in light curves with complex sampling patterns: application to the eROSITA south ecliptic pole survey

David Bogensberger, Kirpal Nandra, Johannes Buchner

Aims: During its all-sky survey phase, the eROSITA X-ray telescope onboard SRG scans through the ecliptic poles every 4 hours. This extensive data set of long-duration, frequent, a…

astro-ph.HE2023

Redshifted iron emission and absorption lines in the Chandra X-ray spectrum of Centaurus A

David Bogensberger, Jon Miller, Elias Kammoun +9

Cen A hosts the closest active galactic nucleus to the Milky Way, which makes it an ideal target for investigating the dynamical processes in the vicinity of accreting supermassive…

astro-ph.HE2021★ 14 cited

Systematic evaluation of variability detection methods for eROSITA

Johannes Buchner, Thomas Boller, David Bogensberger +5

The reliability of detecting source variability in sparsely and irregularly sampled X-ray light curves is investigated. This is motivated by the unprecedented survey capabilities o…

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.HE2019★ 8 cited

Exploring the Interstellar Medium Using an Asymmetric X-ray Dust Scattering Halo

Chichuan Jin, Gabriele Ponti, Guangxing Li +1

SWIFT J1658.2-4242 is an X-ray transient discovered recently in the Galactic plane, with severe X-ray absorption corresponding to an equivalent hydrogen column density of $N_{\rm H…