Results 71 to 80 of about 55,703 (289)

The first symbiotic stars from the LAMOST survey

, 2015
Symbiotic stars are interacting binary systems with the longest orbital periods. They are typically formed by a white dwarf, a red giant and a nebula. These objects are natural astrophysical laboratories for studying the evolution of binaries.
Chen, Xue-Fei, Han, Zhan-Wen, Hou, Yonghui, Li, Jiao, Luo, A-Li, Mikołajewska, Joanna, Rebassa-Mansergas, Alberto, Wang, Yuefei, Wu, Yue, Yang, Ming, Zhang, Yong   +10 more
core   +1 more source

Be Stars in Roche-Lobe Interacting Binaries [PDF]

International Astronomical Union Colloquium, 2000
AbstractDifferent types of massive interacting binaries with Be components are discussed. Due to mass exchange, Be stars in these systems have some peculiar characteristics. Often it is even difficult to find traces of the Be star and/or mass-losing star in the optical region of the spectrum. Using the value of the orbital period as a primary parameter,
openaire   +1 more source

Cutaneous Melanoma Drives Metabolic Changes in the Aged Bone Marrow Immune Microenvironment

Aging and Cancer, EarlyView.
Melanoma, the deadliest form of skin cancer, increasingly affects older adults. Our study reveals that melanoma induces changes in iron and lipid levels in the bone marrow, impacting immune cell populations and increasing susceptibility to ferroptosis.
Alexis E. Carey, Murilo Ramos Rocha, Cheyenne Palm, Vania Wang, Denys Balandin, Ethan Black, Kevin Y. Zhang, Fan Huang, Daniel J. Zabransky, Yash Chhabra, Mareike Peters, Gabriel Ghiaur, Ashani Weeraratna   +12 more
wiley   +1 more source

Tracking Motor Progression and Device‐Aided Therapy Eligibility in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterise the progression of motor symptoms and identify eligibility for device‐aided therapies in Parkinson's disease, using both the 5‐2‐1 criteria and a refined clinical definition, while examining differences across genetic subgroups.
David Ledingham, Sahana Sathyanarayana, Charlotte B. Stewart, Robyn Iredale, Victoria Foster, Debra Galley, Mark Baker, Nicola Pavese   +7 more
wiley   +1 more source

Tides in Massive Binaries: Numerical Solutions and Semianalytical Comparisons

The Astrophysical Journal
We present a systematic comparison between the tidal secular evolution timescales predicted by the direct numerical method and those given by the commonly used semianalytic prescriptions implemented in 1D hydrostatic binary evolution codes.
Meng Sun, Hongbo Xia, Seth Gossage, Vicky Kalogera, Jifeng Liu, Kyle Akira Rocha, R. H. D. Townsend, Emmanouil Zapartas   +7 more
doaj   +1 more source

The demographics of core-collapse supernovae

Astronomy & Astrophysics
Context. The observational properties of core-collapse supernovae are shaped by the envelopes of their progenitors. In massive binary systems, mass-transfer drastically alters the pre-supernova structures compared to single stars, which leads to a ...
Ercolino Andrea, Jin Harim, Langer Norbert, Gal-Yam Avishay, Schootemeijer Abel, Mannes Caroline   +5 more
doaj   +1 more source

Extreme isolation of WN3/O3 stars and implications for their evolutionary origin as the elusive stripped binaries

, 2017
Recent surveys of the Magellanic Clouds have revealed a subtype of Wolf-Rayet (WR) star with peculiar properties. WN3/O3 spectra exhibit both WR-like emission and O3 V-like absorption - but at lower luminosity than O3 V or WN stars.
de Mink, Selma E., Gotberg, Ylva, Smith, Nathan   +2 more
core   +2 more sources

Binary--Single Star Interactions in Globular Clusters

The Astrophysical Journal, 1993
An extensive series of three-body interactions involving hard binaries and single stars are calculated by direct integration of ∼10 5 encounters. Unlike previous calculations, the stars have different mass ratios, chosen to be representative of the stellar and remnant population in a globular cluster, and most effort was devoted to the difficult case ...
Steinn Sigurdsson, E. S. Phinney
openaire   +1 more source

Interactions between brown-dwarf binaries and Sun-like stars [PDF]

Astrophysics and Space Science, 2012
Several mechanisms have been proposed for the formation of brown dwarfs, but there is as yet no consensus as to which -- if any -- are operative in nature. Any theory of brown dwarf formation must explain the observed statistics of brown dwarfs. These statistics are limited by selection effects, but they are becoming increasingly discriminating.
Kaplan, M., Stamatellos, D., Whitworth, A. P.   +2 more
openaire   +3 more sources

Predicting Epileptogenic Tubers in Patients With Tuberous Sclerosis Complex Using a Fusion Model Integrating Lesion Network Mapping and Machine Learning

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Accurate localization of epileptogenic tubers (ETs) in patients with tuberous sclerosis complex (TSC) is essential but challenging, as these tubers lack distinct pathological or genetic markers to differentiate them from other cortical tubers.
Tinghong Liu, Qi Wang, Suhui Kuang, Dezhi Cao, Ping Ding, Shaohui Zhang, Haihua Wei, Zhirong Wei, Jinshan Xu, Xinyu Huang, Bing Liu, Shuli Liang   +11 more
wiley   +1 more source