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SDSS J163030.58+423305.8: A 40 minute Orbital Period Detached White Dwarf Binary
Mukremin Kilic, Warren R. Brown, J. J. Hermes +4
We report the discovery of a new detached, double white dwarf system with an orbital period of 39.8 min. We targeted SDSS J163030.58+423305.8 (hereafter J1630) as part of our radia…
A 12 minute Orbital Period Detached White Dwarf Eclipsing Binary
Warren R. Brown, Mukremin Kilic, J. J. Hermes +3
We have discovered a detached pair of white dwarfs (WDs) with a 12.75 min orbital period and a 1,315 km/s radial velocity amplitude. We measure the full orbital parameters of the s…
The Shortest Period Detached Binary White Dwarf System
Mukremin Kilic, Warren R. Brown, S. J. Kenyon +6
We identify SDSS J010657.39-100003.3 (hereafter J0106-1000) as the shortest period detached binary white dwarf (WD) system currently known. We targeted J0106-1000 as part of our ra…
The Planets around the Post-Common Envelope Binary NN Serpentis
F. V. Hessman, K. Beuermann, S. Dreizler +10
We have detected 2 circumbinary planets around the close binary system NN Serpentis using the orbital time delay effect measured via the sharp eclipses of the white dwarf primary.…