66 citations · 548 across the 22 of their papers we have counts for
22 papers
Evolution of binaries containing a hot subdwarf and a white dwarf to double white dwarfs, and double detonation supernovae with hypervelocity runaway stars
Abinaya Swaruba Rajamuthukumar, Evan B. Bauer, Stephen Justham +3
Compact binaries containing hot subdwarfs and white dwarfs have the potential to evolve into a variety of explosive transients. These systems could also explain hypervelocity runaw…
A spectroscopic and kinematic survey of fast hot subdwarfs
S. Geier, U. Heber, A. Irrgang +19
Hot subdwarfs (sdO/B) are the stripped helium cores of red giants formed by binary interactions. Close hot subdwarf binaries with massive white dwarf companions have been proposed…
SCATTER: A New Common Envelope Formalism
Rosanne Di Stefano, Matthias U. Kruckow, Yan Gao +2
One of the most mysterious astrophysical states is the common envelope (CE) phase of binary evolution, in which two stars are enshrouded by the envelope shed by one of them. Intera…
Triple evolution: an important channel in the formation of type Ia supernovae
Abinaya Swaruba Rajamuthukumar, Adrian Hamers, Patrick Neunteufel +2
Type Ia supernovae (SNe Ia) are thought to be the result of thermonuclear explosions in white dwarfs (WDs). Commonly considered formation pathways include two merging WDs (the doub…
The Equilibrium Tide: An Updated Prescription for Population Synthesis Codes
Holly P. Preece, Adrian S. Hamers, Patrick G. Neunteufel +2
We present an updated prescription for the equilibrium tides suitable for population synthesis codes. A grid of 1D evolutionary models was created and the viscous time-scale was ca…
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…
A statistical view on stable and unstable Roche lobe overflow of a tertiary star onto the inner binary in triple systems
Adrian S. Hamers, Hila Glanz, Patrick Neunteufel
In compact stellar triple systems, an evolved tertiary star can overflow its Roche lobe around the inner binary. Subsequently, the tertiary star can transfer mass to the inner bina…
A hot subdwarf-white dwarf super-Chandrasekhar candidate supernova Ia progenitor
Ingrid Pelisoli, P. Neunteufel, S. Geier +8
Supernova Ia are bright explosive events that can be used to estimate cosmological distances, allowing us to study the expansion of the Universe. They are understood to result from…
A Catalogue of Potential Post Common Envelope Binaries
Matthias U. Kruckow, Patrick G. Neunteufel, Rosanne Di Stefano +2
We present a catalogue containing 839 candidate post common envelope systems. Common envelope evolution is very important in stellar astrophysics, particularly in the context of ve…
Return of the TEDI: revisiting the Triple Evolution Dynamical Instability channel in triple stars
Adrian S. Hamers, Hagai B. Perets, Todd A. Thompson +1
Triple-star systems exhibit a phenomenon known as the Triple Evolution Dynamical Instability (TEDI), in which mass loss in evolving triples triggers short-term dynamical instabilit…
First and second-generation black hole and neutron star mergers in 2+2 quadruples: population statistics
Adrian S. Hamers, Giacomo Fragione, Patrick Neunteufel +1
Recent detections of gravitational waves from mergers of neutron stars (NSs) and black holes (BHs) in the low and high-end mass gap regimes pose a puzzle to standard stellar and bi…
Predicted spatial and velocity distributions of ejected companion stars of helium accretion-induced thermonuclear supernovae
P. Neunteufel, M. Kruckow, S. Geier +1
Thermonuclear supernovae (SNe), a subset of which are the highly important SNe Type\,Ia, remain one of the more poorly understood phenomena known to modern astrophysics. In recent…
Multiple Stellar Evolution: a population synthesis algorithm to model the stellar, binary, and dynamical evolution of multiple-star systems
Adrian S. Hamers, Antti Rantala, Patrick Neunteufel +2
In recent years, observations have shown that multiple-star systems such as hierarchical triple and quadruple-star systems are common, especially among massive stars. They are pote…
Velocity limits in the thermonuclear supernova ejection scenario for hypervelocity stars and the origin of US 708
Patrick Neunteufel
Hypervelocity stars (HVS) are a class of stars moving at high enough velocities to be gravitationally unbound from the Galaxy. Ejection from a close binary system in which one of t…
TW Hya: an old protoplanetary disc revived by its planet
Sergei Nayakshin, Takashi Tsukagoshi, Cassandra Hall +6
Dark rings with bright rims are the indirect signposts of planets embedded in protoplanetary discs. In a recent first, an azimuthally elongated AU-scale blob, possibly a planet, wa…
The Evolution of Helium Star Plus Carbon-Oxygen White Dwarf Binary Systems and Implications for Diverse Stellar Transients and Hypervelocity Stars
P. Neunteufel, S. -C. Yoon, N. Langer
Helium accretion induced explosions in CO white dwarfs (WDs) are considered promising candidates for a number of observed types of stellar transients, including supernovae (SNe) of…
Models for the evolution of close binaries with He-Star and WD components towards Type Ia supernova explosions
P. Neunteufel, S. -C. Yoon, N. Langer
Type Ia supernovae (SNe Ia) have been an important tool for astronomy for quite some time; however, the nature of their progenitors remains somewhat mysterious. Recent theoretical…
Feasibility of radar detection of extensive air showers
J. Stasielak, R. Engel, S. Baur +4
Reflection of radio waves off the short-lived plasma produced by the high-energy shower particles in the air is simulated, considering various radar setups and shower geometries. W…
First Experimental Characterization of Microwave Emission from Cosmic Ray Air Showers
R. Smida, F. Werner, R. Engel +55
We report the first direct measurement of the overall characteristics of microwave radio emission from extensive air showers. Using a trigger provided by the KASCADE-Grande air sho…
Enhancement of the radar signal of air showers due to time compression
J. Stasielak, S. Baur, R. Engel +5
We investigate the feasibility of detecting extensive air showers by the radar technique at viewing angles smaller than to the shower axis. Considering a bistatic r…
Observation of Polarised Microwave Emission from Cosmic Ray Air Showers
R. Smida, F. Werner, R. Engel +55
We report on the first direct measurement of the basic features of microwave radio emission from extensive air showers. Using a trigger provided by the KASCADE-Grande air shower ar…
Radar reflection off extensive air showers
J. Stasielak, S. Baur, M. Bertaina +24
We investigate the possibility of detecting extensive air showers by the radar technique. Considering a bistatic radar system and different shower geometries, we simulate reflectio…