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Post-Common-Envelope Binaries

Eclipsing post-common envelope binaries from the Catalina surveys

Eclipsing post-common envelope binaries from the Catalina surveys

... 8 CONCLUSIONS We have analysed the Catalina Sky Survey light curves of all white dwarf plus main-sequence binaries in the catalogue of Rebassa-Mansergas et al. (2012a) with g < 19, in a search for new eclipsing ...

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Post common envelope binaries from the Sloan Digital Sky Survey

Post common envelope binaries from the Sloan Digital Sky Survey

... Close binaries containing a compact object make up a wide variety of ...close binaries depends crucially on the rate at which angular momentum is extracted from the binary ...the common ...

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Period and amplitude variations in post common envelope eclipsing binaries observed with SuperWASP

Period and amplitude variations in post common envelope eclipsing binaries observed with SuperWASP

... eclipsing binaries may reveal the presence of additional massive bodies in the system, such as circumbinary ...eclipsing post-common-envelope binaries for evidence of such light curve ...

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Post common envelope binaries from SDSS  XVI, Long orbital period systems and the energy budget of common envelope evolution

Post common envelope binaries from SDSS XVI, Long orbital period systems and the energy budget of common envelope evolution

... and post-AGB – binaries: close – binaries: spectroscopic – stars: evolution – stars: low-mass – white ...X-ray binaries or double degenerate white dwarf (WD) ...compact binaries form ...

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Post common envelope binaries from SDSS  VIII, Evidence for disrupted magnetic braking

Post common envelope binaries from SDSS VIII, Evidence for disrupted magnetic braking

... compact binaries assumes magnetic braking to be very e ffi cient as long as the secondary star has a radiative core, but to be negligible if the secondary star is fully ...of post common ...

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Post common envelope binaries from SDSS  IV, SDSS J121258 25–012310 1, a new eclipsing system

Post common envelope binaries from SDSS IV, SDSS J121258 25–012310 1, a new eclipsing system

... tact binaries and eventualy ...gaseous envelope may surround the binary, entering thus a common en- velope (CE) ...the envelope is expelled, the remain- ing system consists of a main sequence ...

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Post common envelope binaries from the SDSS VI  SDSS J120615 73+510047 0 : a new low accretion rate magnetic binary

Post common envelope binaries from the SDSS VI SDSS J120615 73+510047 0 : a new low accretion rate magnetic binary

... their post com- mon envelope lifetimes of the order of several hundred ...detailed post-CE evolution and, hence, cannot answer the question of whether they already could have been wind-accreting ...

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Planetary Systems of post-common envelope binaries

Planetary Systems of post-common envelope binaries

... • The eclipse time variations in NN Ser A/B are most simply explained as the timing effect due to two massive, circumbinary planets. • The planets could either be 1st or 2nd generation [r] ...

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Post common envelope binaries from SDSS : IX, constraining the common envelope efficiency

Post common envelope binaries from SDSS : IX, constraining the common envelope efficiency

... 10. Discussion The results obtained in the previous sections can be summarized as follows: For all systems in our sample, which is the largest sample of one specific type of PCEBs that is currently avail- able, we find ...

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Orbital period variations in eclipsing post-common-envelope binaries

Orbital period variations in eclipsing post-common-envelope binaries

... a common envelope is formed containing the core of the giant and the compan- ion ...this envelope cause the two stars to spiral ...the common envelope revealing the tightly bound core ...

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Multiple emission line components in detached post common envelope binaries

Multiple emission line components in detached post common envelope binaries

... the post-common- envelope binary (PCEB) LTT 560, we have undertaken a spectroscopic snapshot survey on 11 short-period (P orb < 6 h) PCEBs using ...rather common in short-period ...

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Post common envelope binaries from SDSS  II : identification of 9 close binaries with VLT/FORS2

Post common envelope binaries from SDSS II : identification of 9 close binaries with VLT/FORS2

... However, in the case that more than 2 spectra are available there also exists a certain probability sampling similar orbital phases, and the observations presented here also have a finite spectral resolution. In the ...

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Post-common envelope binaries from SDSS - XV. Accurate stellar parameters for a cool 0.4 M⊙ white dwarf and a 0.16 M⊙ M dwarf in a 3 h eclipsing binary

Post-common envelope binaries from SDSS - XV. Accurate stellar parameters for a cool 0.4 M⊙ white dwarf and a 0.16 M⊙ M dwarf in a 3 h eclipsing binary

... 5 Departamento de F´ısica y Astronom´ıa, Facultad de Ciencias, Universidad de Valpara´ıso, Avenida Gran Bretana 1111, Valpara´ıso, Chile Accepted 2011 August 31. Received 2011 August 26; in original form 2011 July 27 A B ...

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Post-common envelope pre-cataclysmic and cataclysmic variable binaries

Post-common envelope pre-cataclysmic and cataclysmic variable binaries

... 2.1.3 HS1136+6646 FUSE data reduction Data from the 2001 and 2002 observations were reduced using the most recent available version of the FUSE data reduction software (CalFUSE v2.4). In short, the CalFUSE data reduction ...

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Two planets orbiting the recently formed post-common envelope binary NN Serpentis

Two planets orbiting the recently formed post-common envelope binary NN Serpentis

... orbiting post-common envelope binaries provide fundamental information on planet formation and ...the common- envelope phase that created the present white dwarf requires fine ...

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Insights into internal effects of common envelope evolution using the extended Kepler mission

Insights into internal effects of common envelope evolution using the extended Kepler mission

... 2011). The others evolved through a common envelope with a close companion and are post-common-envelope binaries (PCEBs). Most PCEBs are the detached precursors to cataclysmic ...

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Eclipsing white dwarf binaries

Eclipsing white dwarf binaries

... In this thesis I present high-precision studies of several eclipsing post common envelope binaries. I use a combination of high-speed photometry and high-resolution spectroscopy to measure the ...

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The Planets around the Post-Common Envelope Binary NN Serpentis

The Planets around the Post-Common Envelope Binary NN Serpentis

... close binaries are formed when the separation of the original main sequence stars are smaller than the extent of a red giant: when the envelope of the evolved primary expands past the orbit of the ...

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The crowded magnetosphere of the post common envelope binary QS Virginis

The crowded magnetosphere of the post common envelope binary QS Virginis

... these binaries, since the magnetic field is able to remove angular momentum from the system, driving the two stars closer together (Rappaport, Verbunt & Joss ...

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On the post-common-envelope central star of the planetary nebula NGC 2346

On the post-common-envelope central star of the planetary nebula NGC 2346

... period post-CE binaries known as well as try to reconcile the apparent discrepancy between parallax distance and the distance implied by previous modelling ...

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