Results 131 to 140 of about 4,400 (313)

Evolved Massive Stars at Low Metallicity. VII. The Lower Mass Limit of the Red Supergiant Population in the Large Magellanic Cloud

The Astrophysical Journal
The precise definition of the lower mass limit of red supergiant stars (RSGs) is an open question in astrophysics and does not attract much attention.
Ming Yang, Bo Zhang, Biwei Jiang, Jian Gao, Yi Ren, Shu Wang, Man I Lam, Hao Tian, Changqing Luo, Bingqiu Chen, Jing Wen   +10 more
doaj   +1 more source

Lithium evolution in the low-mass evolved stars with asteroseismology and LAMOST spectroscopy

Fundamental Research
Lithium is an ancient element that was first produced by the Big Bang Nucleosynthesis (BBN) a few minutes after the birth of the Universe. Lithium is a sensitive tracer for a number of processes in a variety of astrophysical environments due to its multi-
Hong-Liang Yan, Jing-Hua Zhang, Yu-Tao Zhou, Qi Gao, Jian-Rong Shi, Yerra Bharat Kumar, Wako Aoki, Haining Li, Chunqian Li, Gang Zhao   +9 more
doaj   +1 more source

An investigation of non-canonical mixing in red giant stars using APOGEE 12C/13C ratios observed in open cluster stars [PDF]

, 2023
Caroline McCormick, Steven R. Majewski, Verne V. Smith, Christian R. Hayes, Kátia Cunha, T. Masseron, Achim Weiß, Matthew Shetrone, Andrés Almeida, Peter M. Frinchaboy, D. A. García–Hernández, Christian Nıtschelm   +11 more
openalex   +1 more source

Field‐Free, Deterministic Giant Spin‐Orbit Torque Switching of 1.3 T Perpendicular Magnetization With Symmetry‐Lifted Topological Surface States

Advanced Materials, EarlyView.
We show a giant, bias‐field free, deterministic, spin‐orbit‐torque switching of perpendicular hard magnets with HC over 1.3 T. By combining the three‐fold 3m symmetry from topological insulator surface states with the rectangular mm2 symmetry from the 2 x 1 intercalation in Cr3Te4, the interface symmetry is significantly reduced into a unidirectional m
He Ren, Yawen Peng, Meixin Cheng, Yu Shi, Reza Asadi, Adam W. Tsen, Guo‐Xing Miao   +6 more
wiley   +1 more source

Limits on new Lorentz-violating bosons

Journal of High Energy Physics
We obtain novel constraints on new scalar fields interacting with Standard Model fermions through Lorentz-violating couplings, bridging searches for scalar particles and Lorentz-symmetry tests.
P. Carenza, J. Jaeckel, G. Lucente, T. K. Poddar, N. Sherrill, M. Spannowsky   +5 more
doaj   +1 more source

Detection of the Red Giant Branch Stars in M82 Using theHubble Space Telescope [PDF]

, 1999
Shoko Sakai, Barry F. Madore
openalex   +1 more source

Models for Red Giant Stars. I.

The Astrophysical Journal, 1963
Demarque, P., Geisler, J. E.
openaire   +2 more sources

Materials and System Design for Self‐Decision Bioelectronic Systems

Advanced Materials, EarlyView.
This review highlights how self‐decision bioelectronic systems integrate sensing, computation, and therapy into autonomous, closed‐loop platforms that continuously monitor and treat diseases, marking a major step toward intelligent, self‐regulating healthcare technologies.
Qiankun Zeng, Hong Liu, Yongheng Zhang, Youbin Zheng, Xuyin Ding, Mengni Zhu, Guoyue Shi, Yan Wang, Hossam Haick, Min Zhang   +9 more
wiley   +1 more source

Hα Emission among Evolved FGKM Stars: A Compendium from the Literature

The Astronomical Journal
Emission in the wings of the H α line among late-type giant stars occurs as a consequence of conditions in their chromospheres. Data from the literature have been used to document the incidence of H α emission among Population I giant stars as a function
Graeme H. Smith
doaj   +1 more source

Three-dimensional hydrodynamical simulations of red giant stars: semi-global models for interpreting interferometric observations [PDF]

, 2010
A. Chiavassa, R. Collet, L. Casagrande, M. Asplund   +3 more
openalex   +1 more source