• Publications
  • Influence
The mass of the white dwarf in the recurrent nova U Scorpii
ABSTRA C T We present spectroscopy of the eclipsing recurrent nova U Sco. The radial velocity semi- amplitude of the primary star was found to be KWa 93 ^ 10 km s 21 from the motion of the wings ofExpand
Pre-main-sequence isochrones - II. Revising star and planet formation time-scales
CPMB is funded by a UK Science and Technology Facilities Council (STFC) studentship. SPL is supported by an RCUK fellowship. The authors would like to thank Charles D. H. Williams for maintainingExpand
A radio-pulsing white dwarf binary star
TLDR
The discovery is reported of a white dwarf/cool star binary that emits from X-ray to radio wavelengths and the spin-down power is an order of magnitude larger than that seen in electromagnetic radiation, which suggests that AR Sco is primarily spin-powered. Expand
The Astropy Project: Building an Open-science Project and Status of the v2.0 Core Package
The Astropy Project supports and fosters the development of open-source and openly developed Python packages that provide commonly needed functionality to the astronomical community. A key element ofExpand
SDSS unveils a population of intrinsically faint cataclysmic variables at the minimum orbital period
We discuss the properties of 137 cataclysmic variables (CVs) which are included in the Sloan Digital Sky Survey (SDSS) spectroscopic data base, and for which accurate orbital periods have beenExpand
Orbital period variations in eclipsing post-common-envelope binaries
We present high-speed ULTRACAM photometry of the eclipsing post-common-envelope binaries DE CVn, GK Vir, NN Ser, QS Vir, RR Cae, RX J2130.6+4710, SDSS 0110+1326 and SDSS 0303+0054 and use these dataExpand
Precise mass and radius values for the white dwarf and low mass M dwarf in the pre‐cataclysmic binary NN Serpentis
Using the high resolution Ultraviolet and Visual Echelle Spectrograph (UVES) mounted on the Very Large Telescope in combination with photometry from the high-speed CCD camera ULTRACAM, we deriveExpand
THE ASTROPY PROJECT : BUILDING AN INCLUSIVE , OPEN-SCIENCE PROJECT AND STATUS OF THE V 2 . 0 CORE PACKAGE
The Astropy project supports and fosters the development of open-source and openly-developed Python packages that provide commonly-needed functionality to the astronomical community. A key element ofExpand
Empirical isochrones and relative ages for young stars, and the radiative–convective gap
We have selected pre-main-sequence (PMS) stars in 12 groups of notional ages ranging from 1 to 35 Myr, using heterogeneous membership criteria. Using these members we have constructed empiricalExpand
Multi-periodic pulsations of a stripped red-giant star in an eclipsing binary system
TLDR
The observed pulsation frequencies are sensitive to internal processes that determine whether this star will undergo shell flashes, and only models in which this disrupted red-giant star has a thick hydrogen envelope can match the strong constraints provided by the data. Expand
...
1
2
3
4
5
...