Results 51 to 60 of about 563,075 (357)

Evolution of Close Neutron Star Binaries [PDF]

Progress of Theoretical Physics, 1996
13 pages, LaTeX, 15 figures, to appear in Prog. Theor. Phys.
Yasufumi Kojima, Wataru Ogawaguchi
openaire   +3 more sources

Close binary central stars and the abundance discrepancy - new extreme objects [PDF]

Proceedings of the International Astronomical Union, 2016
Recent work (Corradi et al. 2015; Jones et al. 2016) has shown that the phenomenon of extreme abundance discrepancies, where recombination line abundances exceed collisionally excited line abundances by factors of 10 or more, seem to be strongly ...
R. Wesson, D. Jones, J. García-Rojas, R. Corradi, H. Boffin   +4 more
semanticscholar   +1 more source

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.
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

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.
J. Andersen, K-C. Leung, G. Shavlv, K. D. Abhyankar, E.P.J. van den Heuvel, M. Kitamura, Brian Warner, Yoji Kondo, A. M. Cherepashchuk, R. H. Koch, A. H. Batten, M. Rodono, J. Smak   +12 more
openaire   +1 more source

The Search for Close Binary Evolved Stars [PDF]

International Astronomical Union Colloquium, 1989
AbstractWe 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. Each sample has produced one close binary candidate for which further spectroscopic observations are planned.
James Liebert, Rex A. Saffer
openaire   +3 more sources

From Large-scale to Protostellar Disk Fragmentation into Close Binary Stars [PDF]

, 2018
Recent observations of young stellar systems with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array are helping to cement the idea that close companion stars form via fragmentation of a gravitationally ...
L. Sigalotti, F. Cruz, R. Gabbasov, J. Klapp, J. Ram'irez-Velasquez   +4 more
semanticscholar   +1 more source

The clinical spectrum of SMA‐PME and in vitro normalization of its cellular ceramide profile

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1941-1952, December 2022., 2022
Abstract Objective The objectives of this study were to define the clinical and biochemical spectrum of spinal muscular atrophy with progressive myoclonic epilepsy (SMA‐PME) and to determine if aberrant cellular ceramide accumulation could be normalized by enzyme replacement.
Michelle M. Lee, Graeme S. V. McDowell, Darryl C. De Vivo, Daniel Friedman, Samuel F. Berkovic, Maria Spanou, Argirios Dinopoulos, Katheryn Grand, Pedro A. Sanchez‐Lara, Michelle Allen‐Sharpley, Jodi Warman‐Chardon, Alexander Solyom, Thierry Levade, Edward H. Schuchman, Steffany A. L. Bennett, David A. Dyment, Toni S. Pearson   +16 more
wiley   +1 more source

Brain magnetic resonance imaging predictors in anti‐N‐methyl‐D‐aspartate receptor encephalitis

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1974-1984, December 2022., 2022
Abstract Objective Brain magnetic resonance imaging (MRI) findings in anti‐N‐methyl‐D‐aspartate receptor (NMDAR) encephalitis are nonspecific and rarely have obvious associations with clinical characteristics and outcomes. This study aimed to comprehensively describe the MRI features of patients with NMDAR encephalitis, examine their associations with ...
Ying‐Ying Zhao, Bing Han, Cui‐Hong Qin, Xue‐Xiu Shi, Wen‐Jing Yun, Meng Wang, Bo Yuan, Tong‐Wen Sun, Hai‐Xu Wang   +8 more
wiley   +1 more source

Orbital Period Variations in HT Cas: Evidence for Additional Angular Momentum Loss and a High-eccentricity Giant Planet

The Astrophysical Journal, 2023
We present a timing study of the short-period eclipsing cataclysmic variable (CV) HT Cas. Based on new eclipse times derived from our photometric monitoring and archival optical data, combined with historical timings, spanning ∼42 yr, we detect a secular
Z.-T Han, S.-B Qian, Q.-W Han, L. Zang, B. Soonthornthum, L.-J Li, L.-Y. Zhu, W. Liu, E. Fernández Lajús, Z.-B Dai, W.-W Na   +10 more
doaj   +1 more source