Results 31 to 40 of about 2,742,038 (335)

The Evolution of the Supersoft X-Ray Source WX Cen Dominated by Magnetic Wind

The Astrophysical Journal, 2023
WX Cen is most likely one of the Galactic counterparts of compact binary supersoft X-ray sources as a member of the V Sagittae class, in which mass is transferred from a donor secondary to a massive white dwarf primary via an accretion disk. Based on the
Lei Zang, Shengbang Qian, Eduardo Fernández-Lajús   +2 more
doaj   +1 more source

Tidally trapped pulsations in a close binary star system discovered by TESS [PDF]

Nature Astronomy, 2020
It has long been suspected that tidal forces in close binary stars could modify the orientation of the pulsation axis of the constituent stars. Such stars have been searched for, but until now never detected.
G. Handler, D. Kurtz, S. Rappaport, H. Saio, J. Fuller, D. Jones, Z. Guo, S. Chowdhury, P. Sowicka, F. Aliçavuş, M. Streamer, S. Murphy, R. Gagliano, T. Jacobs, A. Vanderburg   +14 more
semanticscholar   +1 more source

The magnetosphere of the close accreting PMS binary V4046 Sgr [PDF]

, 2014
SGG acknowledges support from the Science & Technology Facilities Council (STFC) via an Ernest Rutherford Fellowship [ST/J003255/1]. GAW is supported by a Discovery Grant from the Natural Science & Engineering Research Council of Canada (NSERC).V4046 ...
Damiani, F., V. R. Holzwarth, Audard, M., Audard, M, Güdel, M, J.-F. Donati, Gregory, S. G.; id_orcid, S. H. P. Alencar, D. P. Huenemoerder, Wade, G. A., Huenemoerder, D. P, Sacco, G. G, Holzwarth, V.R., Wade, G.A., Argiroffi C., Maggio, A, Kastner, J.H., C. Argiroffi, Kastner J. H., Hussain, G. A. J, Bouvier, J, M. Audard, Alencar, S. H. P, Sacco, G. G., Huenemoerder, D.P., Holzwarth V. R., Huenemoerder D. P., Gregory, S.G., Hussain, G. A. J., Maggio, A., Damiani F., A. Maggio, ARGIROFFI, Costanza, Donati, J.-F., Damiani, F, Audard, Marc, F. Damiani, Sacco G. G., Hussain, G.A.J., Alecian, E., Sacco, G.G., Montmerle, T, Donati J.-F., Alencar S. H. P., Güdel, M., Argiroffi, C., Kastner, J. H., Alecian, E, Alencar, S.H.P., Gregory, S. G, Gregory, S. G., Montmerle T., G. A. J. Hussain, Donati, J. -F., Alencar, S. H. P., Audard M., E. Alecian, Kastner, J. H, T. Montmerle, Montmerle T, J. Bouvier, Wade G. A., Donati, J. F, J. H. Kastner, G. G. Sacco, Holzwarth, V. R., Bouvier, J., Alecian E., M. Güdel, Bouvier J., Gregory S. G., G. A. Wade, Güdel M., Montmerle, T., Huenemoerder, D. P., Maggio A., Holzwarth, V. R, S. G. Gregory, Hussain G. A. J.   +78 more
core   +1 more source

Multifilter Time-series Observations of Eleven Blue Short-period ATLAS Variable Stars

The Astronomical Journal, 2023
Eleven periodic variable stars were observed photometrically through two to four filters from the set UBVR _C I _C . Phase-folded data for each star cover full cycles of variation.
C. Koen, V. Schaffenroth, A. Kniazev
doaj   +1 more source

From a Dinuclear System to Close Binary Cosmic Objects

Astronomy, 2023
Applying the ideas from microscopic objects to macroscopic stellar and galactic systems, the evolution of compact di-stars and di-galaxies is studied in the mass asymmetry coordinate. The formation of stable binary systems is analyzed.
G. G. Adamian, N. V. Antonenko, H. Lenske, V. V. Sargsyan   +3 more
doaj   +1 more source

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

ELM of ELM-WD: An Extremely-low-mass Hot Star Discovered in LAMOST Survey

The Astronomical Journal, 2023
The extremely-low-mass white dwarfs (ELM WDs) and pre-ELM WDs are helium-core white dwarfs with mass
Hailong Yuan (袁海龙), Zhenwei Li (李振威), Zhongrui Bai (白仲瑞), Yiqiao Dong (董义乔), Mengxin Wang (汪梦欣), Sicheng Yu (余思成), Xuefei Chen (陈雪飞), Yongheng Zhao (赵永恒), Yaoquan Chu (褚耀泉), Haotong Zhang (张昊彤)   +9 more
doaj   +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

THE CLOSE BINARY FREQUENCY OF WOLF–RAYET STARS AS A FUNCTION OF METALLICITY IN M31 AND M33 [PDF]

Proceedings of the International Astronomical Union, 2014
Massive star evolutionary models generally predict the correct ratio of WC-type and WN-type Wolf–Rayet stars at low metallicities, but underestimate the ratio at higher (solar and above) metallicities. One possible explanation for this failure is perhaps
K. Neugent, P. Massey
semanticscholar   +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, Xue-Fei Chen, Zhan-Wen Han   +3 more
semanticscholar   +1 more source