activity
20232026
most citedDiscovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry

129 citations · 159 across the 8 of their papers we have counts for

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Showing astro-ph.GAShow all

6 papers · 1 filter

astro-ph.GA2026

From Gaia to GaiaNIR: II. A new view of the Milky Way bar

Ó. Jiménez-Arranz, M. Schölch, S. Khanna +9

The Milky Way (MW) hosts a central bar whose pattern speed, orientation, and length remain uncertain, largely due to observational biases and selection effects, despite the transfo…

astro-ph.GA2025★ 2 cited

Tidally-induced radial migration waves in LMC-like galaxies

Dylan Hebrail, Óscar Jiménez-Arranz, Santi Roca-Fàbrega

Stellar radial migration has predominantly been examined in isolated disc galaxies where non-axisymmetric structures drive the process. By contrast, while tidal interactions are kn…

astro-ph.GA2025

Beyond the Clouds: S3 as the most distant extended Milky Way stream, not of LMC origin

Ó. Jiménez-Arranz, S. Lilleengen, M. S. Petersen

Context: While the LMC's influence on MW stellar streams has been extensively studied, streams associated with the Clouds have received far less attention. Beyond the Magellanic St…

astro-ph.GA2025★ 12 cited

Tidal interaction can stop galactic bars: on the LMC non-rotating bar

Óscar Jiménez-Arranz, Santi Roca-Fàbrega

Context: Using Gaia DR3 data, Jiménez-Arranz et al. (2024a) computed the LMC bar pattern speed using three different methods. One of them suggested that the LMC might be hosting a…

astro-ph.GA2024★ 129 cited

Discovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry

Gaia Collaboration, P. Panuzzo, T. Mazeh +412

Gravitational waves from black-hole merging events have revealed a population of extra-galactic BHs residing in short-period binaries with masses that are higher than expected base…

astro-ph.GA2024

KRATOS: A large suite of N-body simulations to interpret the stellar kinematics of LMC-like discs

Ó. Jiménez-Arranz, S. Roca-Fàbrega, M. Romero-Gómez +4

We present KRATOS, a comprehensive suite of 28 open access pure N-body simulations of isolated and interacting LMC-like galaxies, to study the formation of substructures in their d…