activity
20202026
most citedAstrometric excess noise in Gaia DR2 and the search for X-ray emitting binaries

30 citations · 32 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.HE2026

Accreting stellar-mass black holes

Greg Marcel, Bailey Tetarenko, Adam Ingram +3

Accreting stellar-mass black holes exhibit dramatic variability across the electromagnetic spectrum, including spectral state transitions, outbursts, and jet production, making the…

astro-ph.HE2026★ 1 cited

Accretion geometry and spectral evolution in 1A 1118-61: a comparison of the 2009 and 2026 outbursts

Kinjal Roy, Aru Beri, Rahul Sharma +1

We present a detailed spectro-temporal study of the Be X-ray binary pulsar during its brightest recorded outburst in 2026, using \textit{Swift} and \textit{NuSTAR} o…

astro-ph.HE2026★ 1 cited

A comprehensive search for high-velocity X-ray sources: New compact object binary candidates in the Gaia era

Yue Zhao, Poshak Gandhi, Christian Knigge +6

We perform a comprehensive search for high-velocity X-ray sources with large X-ray/optical flux ratios (), identifying candidates for interacting black h…

astro-ph.SR2025

Characterisation of H spectra from EXO 051910+3737.7 X-rays binaries

Pornisara Nuchvanichakul, Puji Irawati, Pakakaew Rittipruk +4

We investigate the spectral characteristics of the Be/X-ray binary system, EXO 051910+3737.7, in which Be/X-ray systems are the largest sub-class of high-mass X-ray binaries. Spect…

astro-ph.HE2020★ 30 cited

Astrometric excess noise in Gaia DR2 and the search for X-ray emitting binaries

Poshak Gandhi, David A. H. Buckley, Phil Charles +4

Astrometric noise in excess of parallax and proper motion could be a signature of orbital wobble of individual components in binary star systems. The combination of X-ray selection…