• Publications
  • Influence
DISCOVERY OF THE ECLIPSING DETACHED DOUBLE WHITE DWARF BINARY NLTT 11748
We report the discovery of the first eclipsing detached double white dwarf (WD) binary. In a pulsation search, the low-mass helium core WD NLTT 11748 was targeted for fast (1 minute) differentialExpand
  • 65
  • 10
  • PDF
A GROUND-BASED MEASUREMENT OF THE RELATIVISTIC BEAMING EFFECT IN A DETACHED DOUBLE WHITE DWARF BINARY
We report on the first ground-based measurement of the relativistic beaming effect (aka Doppler boosting). We observed the beaming effect in the detached, non-interacting eclipsing double white dwarfExpand
  • 49
  • 10
  • PDF
Pulsations in Hydrogen Burning Low Mass Helium White Dwarfs
Helium core white dwarfs (WDs) with mass M {approx}< 0.20 M {sub sun} undergo several Gyr of stable hydrogen burning as they evolve. We show that in a certain range of WD and hydrogen envelopeExpand
  • 34
  • 8
  • PDF
PROPERTIES OF AN ECLIPSING DOUBLE WHITE DWARF BINARY NLTT 11748
We present high-quality ULTRACAM photometry of the eclipsing detached double white dwarf binary NLTT 11748. This system consists of a carbon/oxygen white dwarf and an extremely low mass ( 1.5 yr, weExpand
  • 23
  • 3
  • PDF
A SEARCH FOR PULSATIONS IN HELIUM WHITE DWARFS
The recent plethora of sky surveys, especially the Sloan Digital Sky Survey, have discovered many low-mass (M < 0.45 M_⊙) white dwarfs that should have cores made of nearly pure helium. These WDsExpand
  • 16
  • 3
  • PDF
Discovery of the Partially Eclipsing White Dwarf Binary SDSS J143547.87+373338.5*
We have discovered a partially eclipsing white dwarf, low-mass M dwarf binary (3.015114 hr orbital period), SDSS J143547.87+373338.5, from 2007 May observations at the WIYN telescope. Here we presentExpand
  • 15
  • 2
  • PDF
Companions of Post-Common Envelope sdB Binaries
Preliminary results are presented from two ongoing complementary surveys intended to investigate the nature and characteristics of the optically invisible secondaries in post-common envelope subdwarfExpand
  • 11
  • 1
Orbital Evolution of Compact White Dwarf Binaries
The newfound prevalence of extremely low mass (ELM, M{sub He} < 0.2 M{sub Sun }) helium white dwarfs (WDs) in tight binaries with more massive WDs has raised our interest in understanding the natureExpand
  • 27
  • PDF
A Unique Dust Formation Episode in the SC‐Type Star UY Centauri
We report the first detection of new dust formation in an SC star. The prototype of the SC stars, UY Cen, underwent a decline of 2 mag in the V band. The SC stars show pulsational variations and haveExpand
  • 1
  • PDF