Publications (36)
Eclipsing binaries in extrasolar planet transit surveys: the case of SuperWASP
B. Willems, U. Kolb, S. Justham
Using a comprehensive binary population synthesis scheme, we investigate the statistical properties of a sample of eclipsing binaries that is detectable by an idealised extrasolar…
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…
Detection of circumstellar material in a normal Type Ia Supernova
F. Patat, P. Chandra, R. Chevalier +19
Type Ia supernovae are thought to be thermonuclear explosions of accreting white dwarfs that reach a critical mass limit. Despite their importance as cosmological distance indicato…
Magnetic Braking of Ap/Bp Stars: Application to Compact Black-Hole X-Ray Binaries
S. Justham, S. Rappaport, Ph. Podsiadlowski
We examine the proposal that the subset of neutron-star and black-hole X-ray binaries that form with Ap or Bp star companions will experience systemic angular-momentum losses due t…
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…
Common Envelope Evolution: Where we stand and how we can move forward
N. Ivanova, S. Justham, X. Chen +16
This work aims to present our current best physical understanding of common-envelope evolution (CEE). We highlight areas of consensus and disagreement, and stress ideas which shoul…
A self-synthesized origin of heavy metals in hot subdwarf stars?
T. Battich, M. M. Miller Bertolami, A. M. Serenelli +2
Some He-rich hot subdwarf stars (He-sdOBs) present high abundances of trans-iron elements, such as Sr, Y, Zr and Pb. Diffusion processes are important in hot subdwarf stars, and it…
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…
No peaks without valleys: The stable mass transfer channel for gravitational-wave sources in light of the neutron star-black hole mass gap
L. A. C. van Son, S. E. de Mink, M. Renzo +6
Gravitational-wave (GW) detections are starting to reveal features in the mass distribution of double compact objects. The lower end of the black hole (BH) mass distribution is esp…
The -processes nucleosynthesis during the formation of He-rich hot-subdwarf stars
T. Battich, M. M. Miller Bertolami, A. Weiss +3
It has been shown that proton ingestion episodes can happen in the formation of hot-subdwarf stars, and that neutron-capture processes are possible in those cases. Moreover, some h…
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 evolutiona…
A 500 pc volume-limited sample of hot subluminous stars II. Atmospheric parameters, mass distribution, and kinematics
H. Dawson, M. Dorsch, S. Geier +30
We present a quantitative spectroscopic and kinematic analysis of a volume-complete sample of hot subluminous stars within 500 pc of the Sun, assembled using accurate parallax meas…
On the role of recombination in common-envelope ejections
N. Ivanova, S. Justham, Ph. Podsiadlowski
The energy budget in common-envelope events (CEEs) is not well understood, with substantial uncertainty even over to what extent the recombination energy stored in ionised hydrogen…
One's loss is (not) another's gain: Isotropic re-emission destabilizes mass transfer from radiative donor stars
K. D. Temmink, S. Justham, O. R. Pols
Non-conservative mass transfer plays a central role in close-binary evolution, yet its effects on mass-transfer stability are uncertain. One widely adopted prescription, isotropic…
A 500 pc volume-limited sample of hot subluminous stars I. Space density, scale height, and population properties
H. Dawson, S. Geier, U. Heber +25
We present the first volume-limited sample of spectroscopically confirmed hot subluminous stars out to 500 pc, defined using the accurate parallax measurements from the {\em Gaia}…
The Formation of a 70 Msun Black Hole at High Metallicity
K. Belczynski, R. Hirschi, E. A. Kaiser +7
A 70Msun BH was discovered in Milky Way disk in a long period and almost circular detached binary system (LB-1) with a high metallicity 8Msun B star companion. Current consensus on…
Shell helium-burning hot subdwarf B stars as candidates for blue large-amplitude pulsators
H. Xiong, L. Casagrande, X. Chen +7
Blue large-amplitude pulsators (BLAPs) are a newly discovered type of variable star. Their typical pulsation periods are on the order of a few tens of minutes, with relatively larg…
Discovery of a highly magnetic He-sdO star from a double-degenerate binary merger
M. Dorsch, N. Reindl, I. Pelisoli +4
Helium-rich hot subdwarf stars of spectral type O (He-sdO) are considered prime candidates for stellar merger remnants. Such events should lead to the generation of strong magnetic…
Upper limit for circumstellar gas around the Type Ia SN 2000cx
F. Patat, S. Benetti, S. Justham +8
The nature of the companion stars in Type Ia Supernova (SNe) progenitor systems remains unclear. One possible way to discriminate between different scenarios is the presence (or ab…
Properties and applications of a predicted population of runaway He-sdO/B stars ejected from single degenerate He-donor SNe
P. Neunteufel, H. Preece, M. Kruckow +4
This study builds on previous works, producing the most extensive prediction of the properties of such a hypothetical population to date, taking into account both Chandrasekhar and…
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…
The expansion of stripped-envelope stars: consequences for supernovae and gravitational-wave progenitors
E. Laplace, Y. Götberg, S. E. de Mink +2
Massive binaries that merge as compact objects are the progenitors of gravitational-wave sources. Most of these binaries experience one or more phases of mass transfer, during whic…
The redshift evolution of the binary black hole merger rate: a weighty matter
L. A. C. van Son, S. E. de Mink, T. Callister +7
Gravitational wave detectors are starting to reveal the redshift evolution of the binary black hole (BBH) merger rate, . We make predictions for $R_{\mathrm{BB…
Nucleosynthesis of binary-stripped stars
R. Farmer, E. Laplace, Jing-ze Ma +2
The cosmic origin of the elements, the fundamental chemical building blocks of the Universe, is still uncertain. Binary interactions play a key role in the evolution of many massiv…
Polluting the pair-instability mass gap for binary black holes through super-Eddington accretion in isolated binaries
L. A. C. van Son, S. E. de Mink, F. S. Broekgaarden +6
The theory for single stellar evolution predicts a gap in the mass distribution of black holes (BHs) between approximately 45-130M, the so-called "pair-instability mass g…
Identification of the Long-Sought Common-Envelope Events
N. Ivanova, S. Justham, J. L. Avendano Nandez +1
Common-envelope events (CEEs), during which two stars temporarily orbit within a shared envelope, are believed to be vital for the formation of a wide range of close binaries. For…
Models of Ultraluminous X-Ray Sources with Intermediate-Mass Black Holes
N. Madhusudhan, S. Justham, L. Nelson +4
We have computed models for ultraluminous X-ray sources ("ULXs") consisting of a black-hole accretor of intermediate mass ("IMBH"; e.g., ~1000 Msun) and a captured donor star. For…
The cosmic carbon footprint of massive stars stripped in binary systems
R. Farmer, E. Laplace, S. E. de Mink +1
The cosmic origin of carbon, a fundamental building block of life, is still uncertain. Yield predictions for massive stars are almost exclusively based on single star models, even…
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…
Mind the gap: The location of the lower edge of the pair instability supernovae black hole mass gap
R. Farmer, M. Renzo, S. E de Mink +2
Gravitational-wave detections are now starting to probe the mass distribution of stellar-mass black holes (BHs). Robust predictions from stellar models are needed to interpret thes…
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…
Binary mass transfer in 3D: Mass Transfer Rate and Morphology
T. Ryu, R. Sari, S. E. de Mink +6
Mass transfer is crucial in binary evolution, yet its theoretical treatment has long relied on analytic models whose key assumptions remain debated. We present a direct and systema…
SDSSJ001153.08-064739.2, a cataclysmic variable with an evolved donor in the period gap
A. Rebassa-Mansergas, S. G. Parsons, C. M. Copperwheat +5
Secondary stars in cataclysmic variables (CVs) follow a well defined period-density relation. Thus, canonical donor stars in CVs are generally low-mass stars of spectral type M. Ho…
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…
A high fraction of close massive binary stars at low metallicity
H. Sana, T. Shenar, J. Bodensteiner +74
At high metallicity, a majority of massive stars have at least one close stellar companion. The evolution of such binaries is subject to strong interaction processes, heavily impac…
Coping with loss: Stability of mass transfer from post-main sequence donor stars
K. D. Temmink, O. R. Pols, S. Justham +2
The stability of mass transfer is critical in determining pathways towards various kinds of compact binaries, such as compact main-sequence white-dwarf binaries, and transients, su…