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The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation
Shoko Jin, Scott C. Trager, Gavin B. Dalton +212
WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for the William Herschel Telescope, will see first light in late 2022. WEAVE comprises a new 2-degree…
A dense star in a 51-minute orbital period eclipsing binary
Kevin B. Burdge, Kareem El-Badry, Thomas R. Marsh +24
In over a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes. One way to ach…
The White Dwarf Binary Pathways Survey -- VIII: a post common envelope binary with a massive white dwarf and an active G-type secondary star
M. S. Hernandez, M. R. Schreiber, S. G. Parsons +6
The white dwarf binary pathways survey is dedicated to studying the origin and evolution of binaries containing a white dwarf and an intermediate-mass secondary star of the spectra…
Spectral analysis of ultra-cool white dwarfs polluted by planetary debris
Abbigail K. Elms, Pier-Emmanuel Tremblay, Boris T. Gänsicke +5
We identify two ultra-cool ( K) metal-polluted (DZ) white dwarfs WDJ21474035 and WDJ19220233 as the coolest and second coolest DZ stars known to date w…
Circular Polarimetry of Suspect Wind-accreting Magnetic pre-Polars
Pasi Hakala, Steven G. Parsons, Thomas R. Marsh +4
We present results from a circular polarimetric survey of candidate detached magnetic white dwarf - M dwarf binaries obtained using the Nordic Optical Telescope, La Palma. We obtai…
Discovery and analysis of three magnetic hot subdwarf stars: evidence for merger-induced magnetic fields
Ingrid Pelisoli, M. Dorsch, U. Heber +6
Magnetic fields can play an important role in stellar evolution. Among white dwarfs, the most common stellar remnant, the fraction of magnetic systems is more than 20 per cent. The…