282 citations · 5.3k across the 129 of their papers we have counts for
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Discovery of pulsations, including possible pressure modes, in two new extremely low mass, He-core white dwarfs
J. J. Hermes, M. H. Montgomery, D. E. Winget +6
We report the discovery of the second and third pulsating extremely low mass white dwarfs (WDs), SDSS J111215.82+111745.0 (hereafter J1112) and SDSS J151826.68+065813.2 (hereafter…
The seismic properties of low-mass He-core white dwarf stars
A. H. Córsico, A. D. Romero, L. G. Althaus +1
We present here a detailed pulsational study applied to low-mass He-core white dwarfs, based on full evolutionary models representative of these objects. The background stellar mod…
Rapid Orbital Decay in the 12.75-minute WD+WD Binary J0651+2844
J. J. Hermes, Mukremin Kilic, Warren R. Brown +6
We report the detection of orbital decay in the 12.75-min, detached binary white dwarf (WD) SDSS J065133.338+284423.37 (hereafter J0651). Our photometric observations over a 13-mon…
HST and Optical Data Reveal White Dwarf Cooling, Spin and Periodicities in GW Librae 3-4 Years after Outburst
Paula Szkody, Anjum S. Mukadam, Boris T. Gaensicke +9
Since the large amplitude 2007 outburst which heated its accreting, pulsating white dwarf, the dwarf nova system GW Librae has been cooling to its quiescent temperature. Our Hubble…
Orbital properties of an unusually low-mass sdB star in a close binary system with a white dwarf
R. Silvotti, R. H. Østensen, S. Bloemen +17
We have used 605 days of photometric data from the Kepler spacecraft to study KIC 6614501, a close binary system with an orbital period of 0.15749747(25) days (3.779939 hours), tha…
SDSS J184037.78+642312.3: The First Pulsating Extremely Low Mass White Dwarf
J. J. Hermes, M. H. Montgomery, D. E. Winget +3
We report the discovery of the first pulsating extremely low mass (ELM) white dwarf (WD), SDSS J184037.78+642312.3 (hereafter J1840). This DA (hydrogen-atmosphere) WD is by far the…