Results 131 to 140 of about 3,760 (219)

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

Evidence of structural discontinuities in the inner core of red-giant stars. [PDF]

Nat Commun, 2022
Vrard M, Cunha MS, Bossini D, Avelino PP, Corsaro E, Mosser B.   +5 more
europepmc   +1 more source

A Catalog of 486 Barium Stars Identified in GALAH DR4

The Astrophysical Journal Supplement Series
We present a catalog of 486 Ba stars identified in the GALAH DR4 survey using high-resolution spectra and precise abundance measurements. The sample was selected based on s- process enrichment criteria involving the abundances of Ba and La relative to Eu,
Guochao Yang, Jingkun Zhao, Nian Liu, Xiaokun Hou, Zhenxin Lei, Xianhao Ye, Gang Zhao   +6 more
doaj   +1 more source

Asymptotic giant branch variables in NGC 6822

, 2010
Includes bibliographical references (p. 71-75).NGC 6822, a Local Group dwarf irregular galaxy, was observed in the nearinfrared JHKS bands using the Japanese-SAAO Infrared Survey Facility (IRSF) telescope over a period of about four years.
Nsengiyumva, Francois
core  

Asymptotic Giant Branch Mass-loss Rates and Metal Yields from Scaled Mixing-length and Mass-loss Parameters

The Astrophysical Journal
Stars on the asymptotic giant branch (AGB) enrich the interstellar medium with carbon, nitrogen, and dust, which in turn boost cooling and promote future generations of planet and star formation.
Ezra Huscher, Kristian Finlator, Jason Jackiewicz   +2 more
doaj   +1 more source

TIC 295741342: A Triply Eclipsing Triple Star System with a Giant Tertiary

The Astrophysical Journal
We present the discovery and characterization of TIC 295741342, a triply eclipsing triple star system with a giant tertiary. The eclipsing binary consists of two similar main-sequence stars in a 4.75 day orbit. The binary is in a 412.8 day orbit with the
Brian P. Powell, Guillermo Torres, Veselin B. Kostov, Saul A. Rappaport, Tamás Borkovits, Robert Gagliano, David W. Latham   +6 more
doaj   +1 more source

History of two mass loss processes in VY CMa. [PDF]

Proc Int Astron Union, 2023
Quintana-Lacaci G, Velilla L, Fonfría JP, Cernicharo J, Castro-Carrizo A, Agúndez M, Decin L.   +6 more
europepmc   +1 more source

Production of 13C in asymptotic giant branch stars - by Ghina Fawzi Mahmoud

, 2009
Thesis (M.S.)--American University of Beirut, Dept. of Physics, 2009.;"Advisor : Dr. Mounib El Eid, Professor , Physics--Member of Committee : Dr. Malek Tabbal, Professor , Physics--Member of Committee : Dr.
Mahmoud, Ghina Fawzi
core  

Winds of Cool Giant Stars: Models and Observations

, 2005
This review describes recent advances in models and observations of cool winds of asymptotic giant branch stars, focusing on infrared spectroscopy and interferometric methods, in combination with self-consistent time-dependent models of atmospheres and ...
Höfner, Susanne,
core  

Simulations of Solar and Stellar Dynamos and Their Theoretical Interpretation. [PDF]

Space Sci Rev, 2023
Käpylä PJ, Browning MK, Brun AS, Guerrero G, Warnecke J.   +4 more
europepmc   +1 more source