activity
20082026
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations · 8k across the 194 of their papers we have counts for

collaborators

196 papers

astro-ph.HE2026

Do Accretion Disks Get Bent Out of Shape? Investigating the Origin of Rapid Fluctuations in the Tails of Long Thermonuclear X-ray Bursts

D. R. Ballantyne, N. Degenaar

Thermonuclear X-ray bursts from the surfaces of neutron stars affect the surrounding accretion flow, revealing details of the underlying physical processes influencing accretion ph…

astro-ph.HE2026

4U 1556-60 as a very faint neutron star X-ray binary at 700 pc with an undetected radio jet

Eliot C. Pattie, Thomas J. Maccarone, Thomas Russell +3

4U 1556-60 is a low-mass X-ray binary that was discovered more than 50 years ago as a persistent X-ray source; however, very little was known about it. Recently, Gaia obtained a pa…

astro-ph.HE2026★ 1 cited

Decoding Cygnus X-2: The Critical Role of Reflection in IXPE Data

Honghui Liu, Jiachen Jiang, Adam Ingram +10

We present a spectro-polarimetric re-analysis of the first IXPE observation of Cygnus X-2 which we determine to be mainly in the normal branch, from quasi-simultaneous observations…

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

An XMM long look at the accretion disk plasma in the dipping neutron star LMXB 4U1624-490

Eleonora Caruso, Elisa Costantini, Nathalie Degenaar +1

Dipping neutron star low-mass X-ray binaries (NS LMXBs) are systems that exhibit periodic drops in their X-ray light curves. These are believed to be caused by material at the impa…

astro-ph.HE2025★ 2 cited

The very faint X-ray transient Swift J174610-290018 at the Galactic center

Giovanni Stel, Gabriele Ponti, Nathalie Degenaar +17

Very Faint X-ray Transients (VFXTs) are a class of X-ray binary systems that exhibit occasional outbursts with peak X-ray luminosities (L_X< 1e36 erg s^-1) much lower than typical…