Results 151 to 160 of about 1,424,303 (245)

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

Magnetic Flares on Asymptotic Giant Branch Stars [PDF]

, 2003
We investigate the consequences of magnetic flares on the surface of asymptotic giant branch (AGB) and similar stars. In contrast to the solar wind, in the winds of AGB stars the gas cooling time is much shorter than the outflow time.
Kastner, Joel H., Soker, Noam
core  

Observations of Molecular CN toward S-type Asymptotic Giant Branch Stars

The Astronomical Journal
S-type asymptotic giant branch (AGB) stars are defined by their carbon-to-oxygen (C/O) ratio approaching unity. However, observations of circumstellar molecules in these stars are limited and challenging.
Yanan Feng, Xiaohu Li, Xiaofeng Yang, Tom J. Millar, Ryszard Szczerba, Sheng-Li Qin, Xuejian Jiang, Donghui Quan, Juan Tuo, Zhenzhen Miao, Sheng-Yuan Liu, Xiang Liu   +11 more
doaj   +1 more source

Nucleosynthesis in asymptotic giant branch stars: Relevance for galactic enrichment and solar system formation

, 1999
M. Busso, R. Gallino, G. Wasserburg
semanticscholar   +1 more source

Extra–Mixing Processes in Asymptotic Giant Branch Stars [PDF]

, 2011
Extra mixing is the mixing of material in regions that are stable against convection. We identify two situations in asymptotic giant branch stars where extra mixing is thought to be required.
Stancliffe, Richard James, Lattanzio, John Charles   +1 more
core  

Evolution and Nucleosynthesis in Low-Mass Asymptotic Giant Branch Stars. II. Neutron Capture and the s-Process

, 1998
R. Gallino, C. Arlandini, M. Busso, M. Lugaro, C. Travaglio, O. Straniero, A. Chieffi, M. Limongi   +7 more
semanticscholar   +1 more source

Sodium production in asymptotic giant branch stars

, 1999
[condensed] A new scenario is presented for the production of Na23 in asymptotic giant branch (AGB) stars. The scenario takes advantage of the periodic third dredge-up episodes characterizing those stars, which mix primary C12 from their intershell layers to their surface. Two successive interpulse/pulse/dredge-up sequences are then required to produce
openaire   +2 more sources

Carbon stars in populations of different metallicity

, 1998
Our current knowledge of carbon stars in the local group and beyond, is discussed. Although many carbon stars and late M-stars have been identified in external galaxies a coherent understanding in terms of the chemical evolution-and star formation rate ...
Groenewegen, M.A.T., Max-Planck-Institut fuer Astrophysik, Garching (Germany)   +1 more
core  

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

B-type host stars revealed by exoplanets around massive secondary-clump giant stars. [PDF]

Nat Commun
Lin WX, Qian SB, Sun QB, Zhu LY, Liao WP, Li T, Li FX, Liu L, Shi XD, Li L, Zhao E, Zhang H, Li P, Li J, Lian M.   +14 more
europepmc   +1 more source