Results 11 to 20 of about 5,637 (264)
Post common envelope binaries from SDSS. II : identification of 9 close binaries with VLT/FORS2 [PDF]
, 2008 Context. Post common envelope binaries (PCEBs) consisting of a white dwarf and a main sequence star are ideal systems to use to calibrate current theories of angular momentum loss in close compact binary stars.
Schwope, A. D. +9 more
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The formation of EL CVn-type binaries [PDF]
, 2017 EL CVn-type binaries are eclipsing binaries that contain an A- or F-type dwarf star and a very low mass (~0.2?M?) helium white dwarf precursor (proto-He WD).
Maxted
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Towards a volumetric census of close white dwarf binaries - I. Reference samples [PDF]
, 2021 Close white dwarf binaries play an important role across a range of astrophysics, including thermonuclear supernovae, the Galactic low-frequency gravitational wave signal, and the chemical evolution of the Galaxy.
Pala, A. F. +5 more
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The evolutionary state of short-period magnetic white dwarf binaries [PDF]
, 2012 We present phase-resolved spectroscopy of two new short-period low accretion rate magnetic binaries, SDSS J125044.42+154957.3 (Porb= 86 min) and SDSS J151415.65+074446.5 (Porb= 89 min).
Marsh, Tom +15 more
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TIC 278956474: Two close binaries in one young quadruple system, identified by TESS [PDF]
, 2020 We have identified a quadruple system with two close eclipsing binaries in TESS data. The object is unresolved in Gaia and appears as a single source at parallax 1.08~$\pm$0.01 mas.
Hellier
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Twin Binaries: Studies of Stability, Mass Transfer, and Coalescence
, 2011 Motivated by suggestions that binaries with almost equal-mass components (“twins”) play an important role in the formation of double neutron stars and may be rather abundant among binaries, we study the stability of synchronized close and contact ...
Lombardi, James C., Jr. (Jamie) +5 more
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The Formation of Close Binaries [PDF]
Symposium - International Astronomical Union, 1980 Although the formation of close binaries has been the subject of numerous investigations in the last 100 years (for a recent review, see Tassoul 1978), we cannot yet claim decisive observational support for any theory, a state of affairs probably reflecting insufficient development of the various theories, rather than a failure to propose the correct ...
openaire +1 more source
Stability and Coalescence of Massive Twin Binaries
, 2015 Massive stars are usually found in binaries, and binaries with periods less than 10 days may have a preference for near equal component masses ("twins").
Lombardi, James C., Jr. (Jamie) +3 more
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Binaries discovered by the SPY project. IV, Five single-lined DA double white dwarfs [PDF]
, 2005 We present results from our ongoing follow-up observations of double white dwarf binaries detected in the ESO SN Ia Progenitor SurveY (SPY). We discuss our observing strategy and data analysis and present the orbital solutions of five close double white ...
Roelofs, Gijs H. A. +27 more
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Complexity in close binary evolution
Complexity, 2008 AbstractThe complex nature of close binary evolution is briefly reviewed. Population synthesis calculations of zero‐age cataclysmic variable stars (ZACVs) are presented using a common envelope (CE) efficiency parameter, αCE, that is a function of the core mass of the primary.
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