Results 31 to 40 of about 5,806,348 (275)

Wide binary stars in the Galactic field : a statistical approach [PDF]

, 2010
This thesis focuses on the statistical properties of wide binary (WB) star systems in the Galactic field. With projected separations larger than 200 AU and, consequently, having very low binding energies, WB are sensitive probes of the Galactic ...
Longhitano, Marco
core   +1 more source

Are extreme AGB stars post-common envelope binaries?

, 2020
Accepted for publication in MNRAS ...
Dell'Agli, F., Marini, E., D'Antona, F., Ventura, P., Groenewegen, M. A. T., Mattsson, L., Kamath, D., García-Hernández, D. A., Tailo, M.   +8 more
openaire   +2 more sources

The post-common-envelope binary central star of the planetary nebula PN G283.7-05.1 [PDF]

Astronomy & Astrophysics, 2020
We present the discovery and characterisation of the post-common-envelope central star system in the planetary nebula PN G283.7−05.1. Deep images taken as part of the POPIPlaN survey indicate that the nebula may possess a bipolar morphology similar to other post-common-envelope planetary nebulae.
Jones, D, Boffin, HMJ, Hibbert, J, Steinmetz, T, Wesson, R, Hillwig, TC, Sowicka, P, Corradi, RLM, Garciá-Rojas, J, Rodríguez-Gil, P, Munday, J   +10 more
openaire   +4 more sources

The quest for companions to post-common envelope binaries [PDF]

Astronomy & Astrophysics, 2012
accepted by A& ...
Backhaus, Udo, Bauer, S., Beuermann, Klaus, Diese, J., Dreizler, Stefan, Hessman, Frederic V., Husser, Tim Oliver, Klapdohr, K.-H., Möllmanns, J., Schünecke, R., Dette, J., Dubbert, J., Miosga, T., Rochus Vogel, A.L., Simons, S., Biriuk, S., Debrah, M., Griemens, M., Hahn, A., Möller, T., Pawlowski, M., Schweizer, M., Speck, A.-L., Zapros, C., Bollmann, T., Habermann, F.N., Haustovich, N., Lauser, M., Liebing, F., Niederstadt, F., Hoppen, K., Kindermann, D., Küppers, F., Rauch, B., Althoff, F., Horstmann, M., Kellerman, J.N., Kietz, R., Nienaber, T., Sauer, M., Secci, A., Wüllner, L.   +41 more
openaire   +3 more sources

Evolution of Accreting Neutron Star Common Envelopes and Their Nucleosynthesis Possible P-nuclide Production [PDF]

EPJ Web of Conferences, 2023
In a binary system, a short lived phase called a common envelope can occur in which both stars share the envelope of the primary. During this phase, there is the opportunity for nucleosynthesis to occur at high temperatures and densities in the accretion
Abrahams Sophie E. D., Fryer Chris, Hall-Smith Alexander, Laird Alison, Diget Christian   +4 more
doaj   +1 more source

Common envelope binary interaction simulations between a thermally pulsating AGB star and a low mass companion

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT At least one in five of all planetary nebulae are the product of a common envelope (CE) interaction, where the companion in-spirals into the envelope of an asymptotic giant branch (AGB) star ejecting the nebula and leaving behind a compact binary. In this work we carry out 3D smoothed particle hydrodynamics simulations of the CE
Miguel González-Bolívar, Orsola De Marco, Mike Y M Lau, Ryosuke Hirai, Daniel J Price   +4 more
openaire   +3 more sources

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

Gravitoastronomy with neutron stars [PDF]

, 2004
Recent advances in gravitational wave detectors mean that we can start to make astrophysically important statements about the physics of neutron stars based on observed upper limits to their gravitational luminosity.
Woan, G., Graham Woan
core   +1 more source

Evolutionary Origins of Binary Neutron Star Mergers: Effects of Common Envelope Efficiency and Metallicity

The Astrophysical Journal, 2023
Abstract The formation histories of compact binary mergers, especially stellar-mass binary black hole mergers, have recently come under increased scrutiny and revision. We revisit the question of the dominant formation channel and efficiency of forming binary neutron star (BNS) mergers.
Monica Gallegos-Garcia, Christopher P. L. Berry, Vicky Kalogera   +2 more
openaire   +3 more sources

Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars

The Astrophysical Journal, 2023
The stability criteria of rapid mass transfer and common-envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio, and orbital distribution of many important systems, such as X-ray binaries, type Ia supernovae, and
Hongwei Ge, Christopher A Tout, Xuefei Chen, Arnab Sarkar, Dominic J Walton, Zhanwen Han   +5 more
doaj   +1 more source