activity
20242026
most citedUltrasoft state of microquasar Cygnus X-3: X-ray polarimetry reveals the geometry of astronomical puzzle

24 citations · 40 across the 9 of their papers we have counts for

collaborators

13 papers

astro-ph.HE2026

The compact jets of the black hole X-ray binary Swift J1753.5-0127 during its 2023-2024 outburst

Noa Grollimund, Stéphane Corbel, Lauren Rhodes +14

X-ray binaries are excellent laboratories to study the coupling between accretion and ejection phenomena around compact objects through multiwavelength observations. Swift J1753.5-…

astro-ph.HE2026

A Multi-Wavelength Picture of the Surprisingly Short 2024/25 Outburst from EXO 0748-676

Amy H. Knight, Lauren Rhodes, Noel Castro Segura +11

After sixteen years in quiescence, EXO 0748-676 unexpectedly returned to outburst in March 2024. However, in stark contrast to its previous outburst (1985 - 2008), EXO 0748-676 ret…

astro-ph.HE2026

The Homogeneous MeerKAT and Swift/XRT X-ray Binary Radio:X-ray Plane

Justine Crook-Mansour, Rob Fender, Andrew Hughes +22

During the hard and quiescent spectral states in X-ray binaries, a non-linear correlation is observed between radio and X-ray luminosities, providing a valuable tool to probe the c…

astro-ph.HE2025

Unprecedentedly bright X-ray flaring in Cygnus X-1 observed by INTEGRAL

P. Thalhammer, T. Bouchet, J. Rodriguez +15

We study three extraordinarily bright X-ray flares originating from Cyg X-1 seen on 2023 July 10 detected with INTEGRAL. The flares had a duration on the order of only ten minutes…

astro-ph.HE2025

The Double Tidal Disruption Event AT 2022dbl Implies That at Least Some "Standard" Optical TDEs are Partial Disruptions

Lydia Makrygianni, Iair Arcavi, Megan Newsome +37

Flares produced following the tidal disruption of stars by supermassive black holes can reveal the properties of the otherwise dormant majority of black holes and the physics of ac…

astro-ph.HE2025★ 9 cited

Variability of X-ray polarization of Cyg X-1

Vadim Kravtsov, Anastasiia Bocharova, Alexandra Veledina +31

We present the results of a three-year X-ray, optical, and radio polarimetric monitoring campaign of the prototypical black hole X-ray binary Cyg X-1, conducted from 2022 to 2024.…

astro-ph.HE2025

Arcminute Microkelvin Imager observations at 15.5 GHz of multiple outbursts of Cygnus X-3 in 2024

D. A. Green, L. Rhodes, J. Bright

We report radio monitoring of Cygnus X-3 at 15.5 GHz during 2024 with the Arcminute Microkelvin Imager. Observations were made on 296 days throughout the year, and reveal five radi…

astro-ph.HE2025

The observed phase space of mass-loss history from massive stars based on radio observations of a large supernova sample

Itai Sfaradi, Assaf Horesh, Rob Fender +4

In this work we study the circumstellar material (CSM) around massive stars, and the mass-loss rates depositing this CSM, using a large sample of radio observations of 325 core-col…

astro-ph.HE2025

Multi-Wavelength Analysis of AT 2023sva: a Luminous Orphan Afterglow With Evidence for a Structured Jet

Gokul P. Srinivasaragavan, Daniel A. Perley, Anna Y. Q. Ho +50

We present multi-wavelength analysis of ZTF23abelseb (AT 2023sva), an optically discovered fast-fading ( mag in days), luminous ( mag) and…

astro-ph.HE2024★ 5 cited

Simultaneous Optical and X-ray Detection of a Thermonuclear Burst in the 2024 Outburst of EXO 0748-676

Amy H. Knight, Lauren Rhodes, Douglas J. K. Buisson +5

The neutron star low-mass X-ray binary, EXO 0748--676, recently returned to outburst after a 16 year-long quiescence. Since its return, there has been a global effort to cap…

astro-ph.HE2024★ 24 cited

Ultrasoft state of microquasar Cygnus X-3: X-ray polarimetry reveals the geometry of astronomical puzzle

Alexandra Veledina, Juri Poutanen, Anastasiia Bocharova +17

Cygnus X-3 is an enigmatic X-ray binary, that is both an exceptional accreting system and a cornerstone for the population synthesis studies. Prominent X-ray and radio properties f…

astro-ph.HE2024

An IXPE-Led X-ray Spectro-Polarimetric Campaign on the Soft State of Cygnus X-1: X-ray Polarimetric Evidence for Strong Gravitational Lensing

James F. Steiner, Edward Nathan, Kun Hu +134

We present the first X-ray spectropolarimetric results for Cygnus X-1 in its soft state from a campaign of five IXPE observations conducted during 2023 May-June. Companion multiwav…

astro-ph.HE2024★ 2 cited

Late-time radio brightening and emergence of a radio jet in the changing-look AGN 1ES 1927+654

Eileen T. Meyer, Sibasish Laha, Onic I. Shuvo +32

We present multi-frequency (5-345 GHz) and multi-resolution radio observations of 1ES 1927+654, widely considered one of the most unusual and extreme changing-look active galactic…