299 citations · 3.3k across the 45 of their papers we have counts for
24 papers · 1 filter
Revealing Optically Hidden Companions to Intermediate-Mass Stripped Stars with Radial Velocities
Alexander Laroche, Maria R. Drout, Ylva Götberg +7
The recent discovery of a population of intermediate-mass helium stars (2-8 ) in the Magellanic Clouds has opened a new observational window into massive binary evol…
Binarity at LOw Metallicity (BLOeM): a spectroscopic VLT monitoring survey of massive stars in the SMC
T. Shenar, J. Bodensteiner, H. Sana +74
Surveys in the Milky Way and Large Magellanic Cloud revealed that the majority of massive stars will interact with companions during their lives. However, knowledge of the binary p…
Observational predictions for Thorne-Żytkow objects
R. Farmer, M. Renzo, Y. Götberg +3
Thorne-ytkow objects (TO) are potential end products of the merger of a neutron star with a non-degenerate star. In this work, we have computed the first grid of evolutionary…
Strong Variability in AzV 493, an Extreme Oe-Type Star in the SMC
M. S. Oey, N. Castro, M. Renzo +11
We present 18 years of OGLE photometry together with spectra obtained over 12 years, revealing that the early Oe star AzV 493 shows strong photometric (Delta I < 1.2 mag) and spect…
The VLT-FLAMES Tarantula Survey: Observational evidence for two distinct populations of massive runaway stars in 30 Doradus
H. Sana, O. H. Ramírez-Agudelo, V. Hénault-Brunet +17
Two main scenarios have been proposed for origin of massive runaway stars -- dynamical ejection or release from a binary at the first core collapse -- but their relative contributi…
Dissecting the microphysics behind the metallicity-dependence of massive stars radii
Chengcheng Xin, Mathieu Renzo, Brian D. Metzger
Understanding the radii of massive stars throughout their evolution is important to answering numerous questions about stellar physics, from binary interactions on the main sequenc…
Rejuvenated accretors have less bound envelopes: Impact of Roche lobe overflow on subsequent common envelope events
M. Renzo, E. Zapartas, S. Justham +5
Common-envelope (CE) evolution is an outstanding open problem in stellar evolution, critical to the formation of compact binaries including gravitational-wave sources. In the ``cla…
Pair-instability mass loss for top-down compact object mass calculations
M. Renzo, D. D. Hendriks, L. A. C. van Son +1
Population synthesis relies on semi-analytic formulae to determine masses of compact objects from the (helium or carbon-oxygen) cores of collapsing stars. Such formulae are combine…
Searching for Anomalies in the ZTF Catalog of Periodic Variable Stars
H. S. Chan, V. Ashley Villar, S. H. Cheung +4
Periodic variables illuminate the physical processes of stars throughout their lifetime. Wide-field surveys continue to increase our discovery rates of periodic variable stars. Aut…
Evolution of accretor stars in massive binaries: broader implications from modeling ζ Ophiuchi
M. Renzo, Y. Gotberg
Most massive stars are born in binaries close enough for mass transfer episodes. These modify the appearance, structure, and future evolution of both stars. We compute the evolutio…
Binary-Stripped Stars as Core-Collapse Supernovae Progenitors
David Vartanyan, Eva Laplace, Mathieu Renzo +3
Most massive stars experience binary interactions in their lifetimes that can alter both the surface and core structure of the stripped star with significant effects on their ultim…
Different to the core: the pre-supernova structures of massive single and binary-stripped stars
E. Laplace, S. Justham, M. Renzo +4
The majority of massive stars live in binary or multiple systems and will interact during their lifetimes, which helps to explain the observed diversity of core-collapse supernovae…
Prospects of gravitational-waves detections from common-envelope evolution with LISA
M. Renzo, T. Callister, K. Chatziioannou +6
Understanding common envelope (CE) evolution is an outstanding problem in binary evolution. Although the CE phase is not driven by gravitational-wave (GW) emission, the in-spiralin…
The Stellar Merger Scenario for Black Holes in the Pair-instability Gap
M. Renzo, M. Cantiello, B. D. Metzger +1
The recent detection of GW190521 stimulated ideas on how to populate the predicted black hole pair-instability mass gap. One proposed scenario is the dynamical merger of two stars…
Core-Collapse Supernovae in Binaries as the Origin of Galactic Hyper-Runaway Stars
Fraser A. Evans, Mathieu Renzo, Elena Maria Rossi
Several stars detected moving at velocities near to or exceeding the Galactic escape speed likely originated in the Milky Way disc. We quantitatively explore the `binary supernova…
The explosive life of massive binaries
Mathieu Renzo, Emmanouil Zapartas
Massive stars are born predominantly as members of binary (or higher multiplicity) systems, and the presence of a companion can significantly alter their life and final fate. There…
Sensitivity of the lower-edge of the pair instability black hole mass gap to the treatment of time dependent convection
M. Renzo, R. J. Farmer, S. Justham +3
Gravitational-wave detections are now probing the black hole (BH) mass distribution, including the predicted pair-instability mass gap. These data require robust quantitative predi…
Predictions for the hydrogen-free ejecta of pulsational pair-instability supernovae
M. Renzo, R. Farmer, S. Justham +5
Present time-domain astronomy efforts will unveil a variety of rare transients. We focus here on pulsational pair-instability evolution, which can result in signatures observable w…
Properties of OB star-black hole systems derived from detailed binary evolution models
N. Langer, C. Schürmann, K. Stoll +38
The recent gravitational wave measurements have demonstrated the existence of stellar mass black hole binaries. It is essential for our understanding of massive star evolution to i…
Gaia and HST astrometry of the very massive 150 candidate runaway star VFTS682
M. Renzo, S. E. de Mink, D. J. Lennon +12
How very massive stars form is still an open question in astrophysics. VFTS682 is among the most massive stars known, with an inferred initial mass of 150 . It is l…
Gaia DR2 reveals a very massive runaway star ejected from R136
D. J. Lennon, C. J. Evans, R. P. van der Marel +14
A previous spectroscopic study identified the very massive O2 III star VFTS 16 in the Tarantula Nebula as a runaway star based on its peculiar line-of-sight velocity. We use the Ga…
On the formation history of Galactic double neutron stars
Alejandro Vigna-Gómez, Coenraad J. Neijssel, Simon Stevenson +9
Double neutron stars (DNSs) have been observed as Galactic radio pulsars, and the recent discovery of gravitational waves from the DNS merger GW170817 adds to the known DNS populat…
Massive runaways and walkaway stars
M. Renzo, E. Zapartas, S. E. de Mink +6
Anticipating the kinematic constraints from the Gaia mission, we perform an extensive numerical study of the evolution of massive binary systems to predict the peculiar velocities…
Spectral models for binary products: Unifying Subdwarfs and Wolf-Rayet stars as a sequence of stripped-envelope stars
Y. Götberg, S. E. de Mink, J. H. Groh +4
Stars stripped of their envelope through interaction in a binary are generally not considered when accounting for ionizing radiation from stellar populations, despite the expectati…