Results 41 to 50 of about 237,410 (372)

The close binary fraction as a function of stellar parameters in APOGEE: a strong anticorrelation with α abundances [PDF]

Monthly notices of the Royal Astronomical Society, 2020
We use observations from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey to explore the relationship between stellar parameters and multiplicity.
C. Mazzola, C. Badenes, M. Moe, Sergey E. Koposov, M. Kounkel, K. Kratter, K. Covey, M. Walker, T. Thompson, B. Andrews, P. Freeman, B. Anguiano, J. Carlberg, Nathan M De Lee, P. Frinchaboy, H. Lewis, S. Majewski, D. Nidever, C. Nitschelm, A. Price-Whelan, A. Roman-Lopes, K. Stassun, N. Troup   +22 more
semanticscholar   +1 more source

COMMISSION 42: CLOSE BINARY STARS [PDF]

Proceedings of the International Astronomical Union, 2011
The present report covers the main developments in the field of close binaries during the triennium 2009-2012. In addition to scientific publications, there have been several opportunities for direct interaction of researchers working on close binaries. A number of meetings focused on more or less specific topics have taken place during this past years
Ignasi Ribas, Mercedes T. Richards, Slavek Rucinski, David H. Bradstreet, Petr Harmanec, Janusz Kaluzny, Joanna Mikolajewska, Ulisse Munari, Panagiotis Niarchos, Katalin Olah, Theodor Pribulla, Colin D. Scarfe, Guillermo Torres   +12 more
openaire   +1 more source

Adiabatic Mass Loss in Binary Stars. III. From the Base of the Red Giant Branch to the Tip of the Asymptotic Giant Branch [PDF]

Astrophysical Journal, 2020
The distinguishing feature of the evolution of close binary stars is the role played by the mass exchange between the component stars. Whether or not the mass transfer is dynamically stable is one of the essential questions in binary evolution.
H. Ge, R. Webbink, Xuefei Chen, Zhanwen Han   +3 more
semanticscholar   +1 more source

A radial velocity survey for post-common-envelope Wolf–Rayet central stars of planetary nebulae: first results and discovery of the close binary nucleus of NGC 5189 [PDF]

, 2015
The formation of Wolf-Rayet central stars of planetary nebulae ([WR] CSPNe) whose spectroscopic appearance mimics massive WR stars remains poorly understood. Least understood is the nature and frequency of binary companions to [WR] CSPNe that may explain
R. Manick, B. Miszalski, V. McBride
semanticscholar   +1 more source

Identifying close binary central stars of PN with Kepler [PDF]

, 2015
Six planetary nebulae (PN) are known in the Kepler space telescope field of view, three newly identified. Of the 5 central stars of PN with useful Kepler data, one, J193110888+4324577, is a short-period, post common envelope binary exhibiting ...
O. Marco, J. Long, G. Jacoby, T. Hillwig, Matthias Kronberger, S. Howell, N. Reindl, S. Margheim   +7 more
semanticscholar   +1 more source

Computation of gravitational waves from inspiraling binary neutron stars in quasiequilibrium circular orbits : Formulation and calibration [PDF]

, 2001
Gravitational waves from binary neutron stars in quasiequilibrium circular orbits are computed using an approximate method which we propose in this paper. In the first step of this method, we prepare general relativistic irrotational binary neutron stars
A. G. Wiseman, A. G. Wiseman, C. M. Will, C. S. Kochanek, C. W. Misner, D. Kennefick, D. Lai, D. Lai, E. Gourgoulhon, E. Poisson, H. Asada, H. Asada, H. Tagoshi, H. Tagoshi, J. R. Wilson, J. W. York, Jr., K. S. Thorne, K. S. Thorne, K. S. Thorne, K. Uryū, K. Uryū, K. Uryū, Kōji Uryū, L. Bildsten, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Smarr, M. D. Duez, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M. Shibata, M. Shibata, Masaru Shibata, P. Laguna, P. Marronetti, P. R. Brady, R. Arnowitt, S. A. Teukolsky, S. Bonazzola, S. Bonazzola, S. Chandrasekhar, S. L. Shapiro, T. Damour, T. W. Baumgarte, W. H. Press, W. Kley, Y. Itoh, Y. Mino   +53 more
core   +2 more sources

Surveying Planetary Nebulae Central Stars for Close Binaries: Constraining Evolution of Central Stars Based on Binary Parameters

Galaxies, 2018
The increase in discovered close binary central stars of planetary nebulae is leading to a sufficiently large sample to begin to make broader conclusions about the effect of close binary stars on common envelope evolution and planetary nebula formation ...
Todd Hillwig
doaj   +1 more source

Tidally trapped pulsations in binary stars [PDF]

Monthly notices of the Royal Astronomical Society, 2020
A new class of pulsating binary stars was recently discovered, whose pulsation amplitudes are strongly modulated with orbital phase. Stars in close binaries are tidally distorted, so we examine how a star’s tidally induced asphericity affects its ...
J. Fuller, D. Kurtz, D. Kurtz, G. Handler, S. Rappaport   +4 more
semanticscholar   +1 more source

From Dinuclear Systems to Close Binary Stars: Application to Mass Transfer

Acta Physica Polonica B, 2018
Applying the microscopic nuclear physics ideas to macroscopic stellar systems, we study the evolution of the compact di-stars in mass asymmetry (transfer) coordinate.
V. Sargsyan, H. Lenske, G. Adamian, N. Antonenko   +3 more
semanticscholar   +1 more source

CLOSE BINARY SYSTEMS ON LATE EVOLUTIONARY STAGES

Odessa Astronomical Publications, 2017
Observational and theoretical progress in investigations of close binary stars allow to understand the nature and evolution of many types of close binary systems containing peculiar components: Wolf-Rayet stars, white dwarfs neutron stars and black holes.
A. M. Cherepashchuk
doaj   +1 more source