activity
20182025
most citedThe 'hidden' companion in LB-1 unveiled by spectral disentangling

132 citations · 414 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.SR2025

Characterisation of B-type stars in four young Galactic open clusters. I. Stellar content and binary properties

Federica Nardini, Julia Bodensteiner, Hugues Sana +3

Multiplicity among massive stars represents a major uncertainty in stellar evolution theory, because the extra physical processes that it introduces significantly impacts each star…

astro-ph.IM2024★ 12 cited

The Wide-field Spectroscopic Telescope (WST) Science White Paper

Vincenzo Mainieri, Richard I. Anderson, Jarle Brinchmann +214

The Wide-field Spectroscopic Telescope (WST) is proposed as a new facility dedicated to the efficient delivery of spectroscopic surveys. This white paper summarises the initial con…

astro-ph.SR2023

Observational mapping of the mass discrepancy in eclipsing binaries: Selection of the sample and its photometric and spectroscopic properties

A. Tkachenko, K. Pavlovski, N. Serebriakova +4

Abridged. Eclipsing spectroscopic double-lined binaries are the prime source of precise and accurate measurements of masses and radii of stars. These measurements provide a stringe…

astro-ph.SR2023★ 46 cited

A massive helium star with a sufficiently strong magnetic field to form a magnetar

T. Shenar, G. A. Wade, P. Marchant +13

Magnetars are highly magnetized neutron stars; their formation mechanism is unknown. Hot helium-rich stars with spectra dominated by emission lines are known as Wolf-Rayet stars. W…

astro-ph.SR2023★ 11 cited

The ESO UVES/FEROS Large Programs of TESS OB pulsators. I. Global stellar parameters from high-resolution spectroscopy

Nadya Serebriakova, Andrew Tkachenko, Sarah Gebruers +7

Modern stellar structure and evolution theory experiences a lack of observational calibrations for the interior physics of intermediate- and high-mass stars. This leads to discrepa…

astro-ph.SR2022★ 12 cited

Tidal perturbations and eclipse mapping in the pulsations in the hierarchical triple system U~Gru

Cole Johnston, Andrew Tkachenko, Timothy Van Reeth +4

Context. Unambiguous examples of the influence of tides on self-excited, free stellar pulsations have recently been observationally detected in space-based photometric data. Aims.…

astro-ph.SR2022

The Nature of Unseen Companions in Massive Single-Line Spectroscopic Binaries

Hugues Sana, Michael Abdul-Masih, Gareth Banyard +14

Massive stars are predominantly found in binaries and higher order multiples. While the period and eccentricity distributions of OB stars are now well established across different…

astro-ph.SR2022★ 4 cited

Detecting Stripped Stars While Searching for Quiescent Black Holes

J. Bodensteiner, M. Heida, M. Abdul-Masih +13

While the number of stellar-mass black holes detected in X-rays or as gravitational wave sources is steadily increasing, the known population remains orders of magnitude smaller th…

astro-ph.SR2020★ 26 cited

Tango of celestial dancers: A sample of detached eclipsing binary systems containing g-mode pulsating components. A case study of KIC9850387

S. Sekaran, A. Tkachenko, M. Abdul-Masih +9

Eclipsing binary systems with components that pulsate in gravity modes ( modes) allow for simultaneous and independent constraints of the chemical mixing profiles of stars. We a…

astro-ph.SR2020★ 108 cited

Is HR 6819 a triple system containing a black hole? -- An alternative explanation

J. Bodensteiner, T. Shenar, L. Mahy +10

HR 6819 was recently proposed to be a triple system consisting of an inner B-type giant + black hole binary with an orbital period of 40d and an outer Be tertiary. This interpretat…

astro-ph.SR2020★ 132 cited

The 'hidden' companion in LB-1 unveiled by spectral disentangling

T. Shenar, J. Bodensteiner, M. Abdul-Masih +9

The intriguing binary LS V +22 25 (LB-1) has drawn much attention following claims of it being a single-lined spectroscopic binary with a 79-day orbit comprising a B-type star and…

astro-ph.SR2018★ 63 cited

Binary Asteroseismic Modelling: isochrone-cloud methodology and application to Kepler gravity-mode pulsators

C. Johnston, A. Tkachenko, C. Aerts +5

The simultaneous presence of variability due to both pulsations and binarity is no rare phenomenon. Unfortunately, the complexities of dealing with even one of these sources of var…