Results 1 to 10 of about 4,382 (198)

The intermediate neutron capture process

Astronomy & Astrophysics
Context. The intermediate neutron-capture process (i-process) can occur during proton ingestion events (PIEs), which may take place in the early evolutionary phases of asymptotic giant branch (AGB) stars. Aims. We investigate the impact of rotational and
Choplin A., Siess L., Goriely S., Eggenberger P., Moyano F. D.   +4 more
doaj   +1 more source

Dynamical mass of a solar-like oscillator at the main sequence turnoff from Gaia astrometry and ground-based spectroscopy

Astronomy & Astrophysics
Asteroseismology is widely used for the precise mass determination of solar-like oscillating stars, based on individual frequency modeling or homological scaling relations.
Beck P. G., Masseron T., Pavlovski K., Godoy-Rivera D., Mathur S., Grossmann D. H., Hamy A., Palakkatharappil D. B., Panetier E., García R. A., Merc J., Lu Y., Amestoy I., Deeg H. J.   +13 more
doaj   +1 more source

Surface brightness–color relations for red giant branch stars: Observational constraints on metallicity effects using the ARD method

Astronomy & Astrophysics
Context. The surface brightness–color relation (SBCR) links stellar color to angular diameter and is a key ingredient of geometric distance measurements on the first rung of the cosmic distance ladder.
Xiong Jianping, Chen Xiaodian, Li Jiao, Cheng Qiyuan, Zhang Xiaobin, Liu Chao, Han Zhanwen, Chen Xuefei   +7 more
doaj   +1 more source

Rapidly oscillating Ap stars observed with TESS

Astronomy & Astrophysics
Context. The rapidly oscillating chemically peculiar A-type (roAp) stars offer valuable insights into the internal physical processes of all stars, but their study is challenged by their rarity. The large-scale Transiting Exoplanet Survey Satellite (TESS)
Rolo Inês, Holdsworth Daniel L., Cunha Margarida S., Antoci Victoria, Kurtz Donald W., Jayaraman Rahul, Santos Ângela R. G.   +6 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

The relationship between photometric and spectroscopic oscillation amplitudes from 3D stellar atmosphere simulations. [PDF]

Mon Not R Astron Soc, 2021
Zhou Y, Nordlander T, Casagrande L, Joyce M, Li Y, Amarsi AM, Reggiani H, Asplund M.   +7 more
europepmc   +1 more source

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

Variability in the Massive Open Cluster NGC 1817 from K2: A Rich Population of Asteroseismic Red Clump, Eclipsing Binary, and Main-sequence Pulsating Stars. [PDF]

Astron J, 2020
Sandquist EL, Stello D, Arentoft T, Brogaard K, Grundahl F, Vanderburg A, Hedlund A, DeWitt R, Ackerman TR, Aguilar M, Buckner AJ, Juarez C, Ortiz AJ, Richarte D, Rivera DI, Schlapfer L.   +15 more
europepmc   +1 more source

Editorial: The Future of Asteroseismology

Frontiers in Astronomy and Space Sciences, 2021
Joyce Ann Guzik, Markus Roth
doaj   +1 more source

Gravitational waves from neutron stars and asteroseismology. [PDF]

Philos Trans A Math Phys Eng Sci, 2018
Ho WCG.
europepmc   +1 more source