Post-Common-Envelope Binaries from the SDSS
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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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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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 VIII, Evidence for disrupted magnetic braking
... differ from single main se- quence stars and white ...WDMS binaries appear as objects with non-stellar colours within SDSS as long as they are not spa- tially resolved by the typical seeing of 1 ...an ...
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Post common envelope binaries from SDSS XVI, Long orbital period systems and the energy budget of common envelope evolution
... Figure 6. Maximum orbital period versus WD mass assuming a secondary star mass of M sec = 0 . 4 (black lines) ± 0 . 1 M (grey lines). The dashed lines correspond to the maximum orbital period if all recombination energy ...
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Post common envelope binaries from SDSS IV, SDSS J121258 25–012310 1, a new eclipsing system
... The SDSS Web Site is http://www.sdss.org/. The SDSS is managed by the Astrophysical Research Consortium for the Participating ...products from the Two Micron All Sky Survey, which is a joint project ...
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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
... 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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Eclipsing post-common envelope binaries from the Catalina surveys
... hours. SDSS J122339.61-005631.1 SDSS J1223-0056 was observed with ULTRACAM mounted on the NTT as part of a project to detect pulsating white dwarfs in white dwarf plus main-sequence ...system. SDSS ...
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Post common envelope binaries from the Sloan Digital Sky Survey
... −1 from the true signal in the power ...peak from the possible ...combined from different nights will eventually provide a clear signal in the power spectrum and provide an accurate measurement of ...
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Orbital period variations in eclipsing post-common-envelope binaries
... eclipsing post common enve- lope binaries DE CVn, GK Vir, NN Ser, QS Vir, RR Cae, RX ...4710, SDSS 0110 + 1326 and SDSS 0303 + 0054 and use these data to measure precise mid-eclipse ...
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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 pre-cataclysmic and cataclysmic variable binaries
... accretion from the secondary star onto the magnetic poles of the WD, where emission is suppressed to do the absorp- tion opacity of heavy ...departures from the normal orbital solution which can be upwards ...
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Multiple emission line components in detached post common envelope binaries
... 4. Discussion In a snapshot survey of 11 short-period PCEBs we have found strong evidence of multiple Hα emission sources in six systems. Due to the limited phase coverage of our spectroscopy it is not possible to ...
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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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A large, long-lived structure near the trojan L5 point in the post common-envelope binary SDSS J1021+1744
... on SDSS J1021+1744 obtained in June 2012 was unusual in showing a dip in flux of uncertain origin shortly after the white dwarf’s ...Since SDSS J1021+1744 is a detached binary, it follows that the dips are ...
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The Planets around the Post-Common Envelope Binary NN Serpentis
... the common-envelope phase would have placed them in unstable configurations, suggesting that they may have suffered significant orbital drag effects and were originally in much larger ...years from ...
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Accretion in the detached post common envelope binary LTT 560
... detached post-common-envelope binary LTT 560 displays an Hα emission line consisting of two anti-phased ...activity from the secondary late-type main-sequence star, our analysis indicated that ...
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The crowded magnetosphere of the post common envelope binary QS Virginis
... features common to all trails and maps (marked A, B and C in Figs 12 and ...fits from the 2013 data, however, the same level of detail is not as readily reconstructed using other data sets, most likely due ...
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The population of white dwarf-main sequence binaries in the SDSS DR 12
... calculated from the initial- to-final mass relation of Hurley et ...the common envelope phase we use the α-formalism as described in Tout et ...the envelope (assumed to be ...the ...
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14 new eclipsing white dwarf plus main-sequence binaries from the SDSS and Catalina surveys
... main-sequence binaries from the Sloan Digital Sky Sur- vey with the long-term photometric data of the Catalina Sky Sur- veys in order to identify new close post common-envelope bina- ...
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