Results 41 to 50 of about 2,742,038 (335)

Search for Close Binary Evolved Stars

, 1988
We report on a search for short -period binary systems composed of pairs of evolved stars. The search is being carried out concurrently with a program to characterize the kinematical properties of two different samples of stars.
Liebert, J., Saffer, R. A.
core   +5 more sources

POSYDON: A General-purpose Population Synthesis Code with Detailed Binary-evolution Simulations

The Astrophysical Journal Supplement Series, 2023
Most massive stars are members of a binary or a higher-order stellar system, where the presence of a binary companion can decisively alter their evolution via binary interactions. Interacting binaries are also important astrophysical laboratories for the
Tassos Fragos, Jeff J. Andrews, Simone S. Bavera, Christopher P. L. Berry, Scott Coughlin, Aaron Dotter, Prabin Giri, Vicky Kalogera, Aggelos Katsaggelos, Konstantinos Kovlakas, Shamal Lalvani, Devina Misra, Philipp M. Srivastava, Ying Qin, Kyle A. Rocha, Jaime Román-Garza, Juan Gabriel Serra, Petter Stahle, Meng Sun, Xu Teng, Goce Trajcevski, Nam Hai Tran, Zepei Xing, Emmanouil Zapartas, Michael Zevin   +24 more
doaj   +1 more source

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.
Christine N 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

New spectroscopic binary companions of giant stars and updated metallicity distribution for binary systems [PDF]

, 2016
We report the discovery of 24 spectroscopic binary companions to giant stars. We fully constrain the orbital solution for 6 of these systems. We cannot unambiguously derive the orbital elements for the remaining stars because the phase coverage is ...
Vanzi, L., Wittenmyer, R., Drass, H, L. Vanzi, Jenkins, J., Wittenmyer, R. A., Bluhm, P., Rojo, P, Bluhm, P, Voss, J., Vuckovic, M, Wittenmyer, RA, Soto, M., Vuckovic, M., H. Drass, Vanzi, Leonardo, Jenkins, James Stewart, Jones, M. I., C. H. F. Melo, Rojo, P., Olivares, F., Drass, H., Jones, MI, P. Rojo, Soto, M. G, Melo, CHF, R. A. Wittenmyer, F. Olivares, M. Vučković, Mennickent, R. E., Jenkins, J. S., Jones Fernández, Matías Ignacio, Melo, C. H. F., Vanzi, L, Soto, M. G., Olivares, F, M. G. Soto, J. Vos, P. Bluhm, Drass, Holger, J. S. Jenkins, R. E. Mennickent, Mennickent, RE, Melo, C., Jenkins, JS, Mennickent, R., Voss, J, Vos, J., M. I. Jones, Soto, MG   +49 more
core   +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

Close encounters of star–black hole binaries with single stars

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT Multibody dynamical interactions of binaries with other objects are one of the main driving mechanisms for the evolution of star clusters. It is thus important to bring our understanding of three-body interactions beyond the commonly employed point-particle approximation.
Taeho Ryu, Selma E de Mink, Rob Farmer, Rüdiger Pakmor, Rosalba Perna, Volker Springel   +5 more
openaire   +4 more sources

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. De Marco, J. Long, G. Jacoby, T. Hillwig, M. Kronberger, S. Howell, N. Reindl, S. Margheim   +7 more
semanticscholar   +1 more source

Tidal effects in close binary stars [PDF]

Symposium - International Astronomical Union, 1984
This review addresses the question of what can be learned about the stellar interiors from the study of the tidal effects in close binary stars.
openaire   +1 more source

42. Close Binary Stars [PDF]

Transactions of the International Astronomical Union, 1985
Research on close binary systems has continued at a high level during the past triennium, although the rate of growth is noticeably slower – probably reflecting the cutbacks in funds to which many of us are subject. There have also been changes of emphasis within the field, which are commented on in the pages that follow.
A. H. Batten, J. Smak, K. D. Abhyankar, J. Andersen, A. M. Cherepashchuk, M. Kitamura, R. H. Koch, Y. Kondo, K-C. Leung, M. Rodono, G. Shavlv, E. P. J. van den Heuvel, B. Warner   +12 more
openaire   +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