424 citations · 3.4k across the 66 of their papers we have counts for
9 papers · 1 filter
FBOTs and AT2018cow following electron-capture collapse of merged white dwarfs
Maxim Lyutikov, Silvia Toonen
We suggest that fast-rising blue optical transients (FBOTs) and the brightest event of the class AT2018cow result from an electron-capture collapse to a \NS\ following a merger of…
Discovery of the first resolved triple white dwarf
M. Perpinyà-Vallès, A. Rebassa-Mansergas, B. T. Gänsicke +4
We report the discovery of J1953-1019, the first resolved triple white dwarf system. The triplet consists of an inner white dwarf binary and a wider companion. Using Gaia DR2 photo…
Where are the double-degenerate progenitors of type Ia supernovae?
A. Rebassa-Mansergas, S. Toonen, V. Korol +1
Double white dwarf binaries with merger timescales smaller than the Hubble time and with a total mass near the Chandrasekhar limit (i.e. classical Chandrasekhar population) or with…
Neutron star - white dwarf mergers: Early evolution, physical properties, and outcomes
Yossef Zenati, Hagai B. Perets, Silvia Toonen
Neutron-star (NS) - white-dwarf (WD) mergers may give rise to observable explosive transients, but have been little explored. We use 2D coupled hydrodynamical-thermonuclear FLASH-c…
A Data Release 2 catalogue of white dwarfs and a comparison with SDSS
Nicola Pietro Gentile Fusillo, Pier-Emmanuel Tremblay, Boris T. Gänsicke +11
We present a catalogue of white dwarf candidates selected from the second data release of (DR2). We used a sample of spectroscopically confirmed white dwarfs from the Sloan…
The Gaia 20 pc white dwarf sample
M. A. Hollands, P. E. Tremblay, B. T. Gaensicke +2
Using Gaia DR2 data, we present an up-to-date sample of white dwarfs within 20 pc of the Sun. In total we identified 139 systems in Gaia DR2, nine of which are new detections, with…
Three Hypervelocity White Dwarfs in Gaia DR2: Evidence for Dynamically Driven Double-Degenerate Double-Detonation Type Ia Supernovae
Ken J. Shen, Douglas Boubert, Boris T. Gänsicke +23
Double detonations in double white dwarf (WD) binaries undergoing unstable mass transfer have emerged in recent years as one of the most promising Type Ia supernova (SN Ia) progeni…
The demographics of neutron star - white dwarf mergers: rates, delay-time distributions and progenitors
S. Toonen, H. B. Perets, A. P. Igoshev +2
The mergers of neutron stars (NSs) and white dwarfs (WDs) could give rise to explosive transients, potentially observable with current and future transient surveys. However, the ex…
Formation and evolution of hybrid He-CO white dwarfs and their properties
Yossef Zenati, Silvia Toonen, Hagai B. Perets
White dwarfs (WDs) are the stellar core remnants of low mass stars. They are typically divided into three main composition groups: Oxygen Neon (ONe), Carbon Oxygen (CO) and Helium…