Results 31 to 40 of about 6,468 (258)

Asteroseismology and interferometry [PDF]

The Astronomy and Astrophysics Review, 2007
Asteroseismology provides us with a unique opportunity to improve our understanding of stellar structure and evolution. Recent developments, including the first systematic studies of solar-like pulsators, have boosted the impact of this field of research within Astrophysics and have led to a significant increase in the size of the research community ...
Cunha, M.S., Aerts, C., Christensen-Dalsgaard, J., Baglin, A., Bigot, Lionel, Brown, T.M., Catala, C., Creevey, O.L., Domiciano de Souza, A., Eggenberger, P., Garcia, P.J.V., Grundahl, F., Kervella, P., Kurtz, D.W., Mathias, P., Miglio, A., Monteiro, M.J.P.F.G., Perrin, G., Pijpers, F.P., Pourbaix, D., Quirrenbach, A., Rousselet-Perraut, K., Teixeira, T.C., Thévenin, F., Thompson, M.J.   +24 more
openaire   +7 more sources

Asteroseismology with the Roman Galactic Bulge Time-Domain Survey [PDF]

, 2023
Asteroseismology has transformed stellar astrophysics. Red giant asteroseismology is a prime example, with oscillation periods and amplitudes that are readily detectable with time-domain space-based telescopes.
Piro, Anthony L., Ness, Melissa K., Serenelli, Aldo, Bland-Hawthorn, Joss, Bugnet, Lisa, Chaplin, William J., Guzik, Joyce A., Tayar, Jamie, Sharma, Sanjib, Bedding, Timothy R., Grunblatt, Samuel K., Beck, Paul, Zinn, Joel C., Stassun, Keivan G., Soderblom, David R., Stello, Dennis, Garcia, Rafael A., Breton, Sylvain N., Huber, Daniel, Mathis, Stephane, Kawaler, Steven D., Metcalfe, Travis, Mosser, Benoit, Pinsonneault, Marc, Hekker, Saskia, van Belle, Gerard T., Mathur, Savita   +26 more
core   +2 more sources

Asteroseismology of the multiple stellar populations in the globular cluster M4 [PDF]

Astronomy & Astrophysics, 2022
We present a new asteroseismic analysis of the stars in the globular cluster (GC) M4 based on the data collected by the K2 mission. We report the detection of solar-like oscillation in 37 stars, 32 red giant branch (RGB) and six red horizontal branch ...
M. Tailo, E. Corsaro, A. Miglio, J. Montalbán, K. Brogaard, A. Milone, A. Stokholm, G. Casali, A. Bragaglia   +8 more
semanticscholar   +1 more source

The potential of Shannon entropy to find the large separation of δ Scuti stars: The entropy spectrum

Frontiers in Astronomy and Space Sciences, 2022
This study explores the use of Shannon entropy to find periodic patterns in the oscillation spectra of δ Scuti stars. We have developed a new diagnostic tool for detecting potential patterns that scans for minimal entropic states in the well-known ...
J. C. Suárez
doaj   +1 more source

A Mini-Review of Accreting Pulsating White Dwarfs

Frontiers in Astronomy and Space Sciences, 2021
The discovery in 1998 of a pulsating white dwarf in the cataclysmic variable GW Lib opened up a new avenue of exploration in the asteroseismology of white dwarfs.
Paula Szkody
doaj   +1 more source

White-dwarf asteroseismology: an update [PDF]

, 2020
The vast majority of stars that populate the Universe will end their evolution as white-dwarf stars. Applications of white dwarfs include cosmochronology, evolution of planetary systems, and also as laboratories to study non-standard physics and ...
Córsico, Alejandro Hugo
core   +1 more source

Mixed-mode Asteroseismology of Red Giant Stars Through the Luminosity Bump [PDF]

Astrophysical Journal, 2022
Most current models of low-mass red giant stars do not reproduce the observed position of the red giant branch luminosity bump, a diagnostic of the maximum extent of the convective envelope during the first dredge up. Global asteroseismic parameters, the
C. Lindsay, J. Ong, S. Basu
semanticscholar   +1 more source

Magnetic and Rotational Evolution of ρ CrB from Asteroseismology with TESS [PDF]

Astrophysical Journal, 2021
During the first half of main-sequence lifetimes, the evolution of rotation and magnetic activity in solar-type stars appears to be strongly coupled. Recent observations suggest that rotation rates evolve much more slowly beyond middle age, while stellar
T. Metcalfe, J. V. van Saders, S. Basu, D. Buzasi, J. Drake, R. Egeland, D. Huber, S. Saar, K. Stassun, W. Ball, T. Campante, A. Finley, O. Kochukhov, S. Mathur, T. Reinhold, V. See, S. Baliunas, W. Soon   +17 more
semanticscholar   +1 more source

CubeSpec space mission. I. Asteroseismology of massive stars from time series optical spectroscopy: science requirements and target list prioritisation [PDF]

Astronomy & Astrophysics, 2021
Context. There is currently a niche for providing high-cadence, high resolution, time-series optical spectroscopy from space, which can be filled by using a low-cost cubesat mission.
D. Bowman, B. Vandenbussche, H. Sana, A. Tkachenko, G. Raskin, T. Delabie, B. Vandoren, P. Royer, S. García, T. V. Reeth, CubeSpec Collaboration   +10 more
semanticscholar   +1 more source

Helio- and asteroseismology [PDF]

Proceedings of the International Astronomical Union, 2001
AbstractObservations of solar and stellar oscillations are providing detailed information about stellar interiors. In the case of the Sun the set of observed frequencies is sufficiently detailed and accurate that the properties of the solar interior, such as sound speed, density and internal rotation, can be inferred with substantial precision and ...
openaire   +4 more sources