Results 41 to 50 of about 6,468 (258)

On the Detectability of Large-Scale Flows by Asteroseismology

Frontiers in Astronomy and Space Sciences, 2020
Large-scale convective motions are an integral part of stellar interior dynamics and might play a relevant role in stellar dynamo processes. However, they are difficult to detect or characterize.
Markus Roth, Wiebke Herzberg
doaj   +1 more source

Stellar Stalling: the view from asteroseismology [PDF]

, 2023
Asteroseismology, the study of intrinsic oscillations in stars, can reveal fundamental properties of cool stars critical in our understanding of stellar rotational evolution.
Davies, Guy R., Hall, Oliver, Garcia, Rafael A., Chaplin, Bill, Chaplin, William J., Tayar, Jamie, Amard, Louis, Lund, Mikkel, Davies, Guy R, Nielsen, Martin, Nielsen, Martin B., Khan, Saniya, Van Saders, Jennifer L., Garcia, Rafael, Lund, Mikkel N., van Saders, Jennifer, Breimann, Angela A., Hall, Oliver J., See, Victor   +18 more
core   +1 more source

TESS asteroseismology of the Kepler red giants [PDF]

, 2021
Red giant asteroseismology can provide valuable information for studying the Galaxy as demonstrated by space missions like CoRoT and Kepler. However, previous observations have been limited to small data sets and fields-of-view. The TESS mission provides
D. Stello, Nicholas Saunders, S. Grunblatt, M. Hon, C. Reyes, D. Huber, T. Bedding, Y. Elsworth, R. A. Garc'ia, S. Hekker, T. Kallinger, S. Mathur, B. Mosser, M. Pinsonneault   +13 more
semanticscholar   +1 more source

Neutron stars in f(R,T) gravity with conserved energy-momentum tensor: Hydrostatic equilibrium and asteroseismology [PDF]

, 2021
We investigate the equilibrium and radial stability of spherically symmetric relativistic stars, considering a polytropic equation of state (EoS), within the framework of f(R,T) gravity with a conservative energy-momentum tensor.
J. M. Pretel, S. E. Jor'as, R. Reis, J. Arbañil   +3 more
semanticscholar   +1 more source

Kepler Asteroseismology Program: Introduction and First Results [PDF]

, 2010
Asteroseismology involves probing the interiors of stars and quantifying their global properties, such as radius and age, through observations of normal modes of oscillation.
Appourchaux, Thierry, Chaplin, William, Borucki, William J., Gilliland, Ronald L., Basu, Sarbani, Handler, Gerald, Jenkins, Jon M., Chaplin, William J., Elsworth, Yvonne P., Kjeldsen, Hans, Guzik, Joyce A., Balona, Luis, Latham, David W., De Cat, Peter, Kiss, László, Kawaler, Steven, Steffen, J.H., Brown, Timothy M., Bedding, Timothy R., Kondo, Yoji, Rowe, Jason F., Steffen, Jason H., Quirion, Pierre-Olivier, Stello, Dennis, Elsworth, Yvonne, Christensen-Dalsgaard, Jørgen, Metcalfe, Travis S., Suárez, Juan Carlos, Kurtz, Donald Wayne, Aerts, Conny, Kolenberg, Katrien, Szabó, Robert, Cunha, Margarida S., Koch, David, Arentoft, Torben, Debosscher, Jonas, Basu, S., De Ridder, Joris, Monteiro, Mario J. P. F. G.   +38 more
core   +2 more sources

TESS Data for Asteroseismology (T’DA) Stellar Variability Classification Pipeline: Setup and Application to the Kepler Q9 Data [PDF]

Astronomical Journal, 2021
The NASA Transiting Exoplanet Survey Satellite (TESS) is observing tens of millions of stars with time spans ranging from ∼27 days to about 1 yr of continuous observations.
J. Audenaert, J. Kuszlewicz, R. Handberg, A. Tkachenko, David J Armstrong, M. Hon, R. Kgoadi, M. Lund, K. Bell, L. Bugnet, D. Bowman, C. Johnston, R. A. Garc'ia, D. Stello, L. Moln'ar, E. Plachy, D. Buzasi, C. Aerts, the T'DA collaboration   +18 more
semanticscholar   +1 more source

Asteroseismology [PDF]

Physics Today, 2015
Pulsations known as starquakes can provide precious glimpses into a star’s interior—and clues to how the star will live and die.
openaire   +2 more sources

Saturn's Rings as a Seismograph to Probe Saturn's Internal Structure

AGU Advances, Volume 1, Issue 2, June 2020., 2020
As it has already done for Earth, the Sun, and the stars, seismology has the potential to radically change the way the interiors of giant planets are studied. In a sequence of events foreseen by only a few, observations of Saturn's rings by the Cassini spacecraft have rapidly broken ground on giant planet seismology. Gravity directly couples the planet'
Christopher R. Mankovich
wiley   +1 more source

Asteroseismology of the Nearby K Dwarf σ Draconis Using the Keck Planet Finder and TESS [PDF]

Astrophysical Journal
Asteroseismology of dwarf stars cooler than the Sun is very challenging owing to the low amplitudes and rapid timescales of oscillations. Here we present the asteroseismic detection of solar-like oscillations at 4-minute timescales ( νmax∼4300 μHz) in ...
M. Hon, Dan Huber, Yaguang Li, T. Metcalfe, T. Bedding, J. Ong, A. Chontos, R. Rubenzahl, S. Halverson, R. A. Garc'ia, H. Kjeldsen, D. Stello, D. Hey, T. Campante, A. Howard, Steve R. Gibson, K. Rider, Arpita Roy, A. Baker, Jerry Edelstein, Christopher L. Smith, B. Fulton, Josh Walawender, Max Brodheim, Matthew Brown, Dwight Chan, F. Dai, W. Deich, Colby Gottschalk, Jason L. Grillo, David Hale, Grant M. Hill, Bradford Holden, Aaron Householder, H. Isaacson, Y. Ishikawa, S. Jelinsky, Marc Kassis, Stephen Kaye, Russ R. Laher, Kyle Lanclos, Chien-Hsiu Lee, S. Lilley, Ben McCarney, Tim Miller, Joel N. Payne, E. Petigura, C. Poppett, Michael Raffanti, C. Rockosi, D. Sanford, C. Schwab, Abby P. Shaum, M. Sirk, Roger Smith, Jim Thorne, John Valliant, Adam Vandenberg, S. Wang, E. Wishnow, Truman Wold, Sherry Yeh, A. Baker, S. Basu, M. Bedell, Jennifer A. Burt, H. Cegla, I. Crossfield, C. Dressing, X. Dumusque, Eric Ford, H. Knutson, D. Mawet, John M. O'Meara, G. Stef'ansson, J. Teske, G. Vasisht, S. X. Wang, L. Weiss, J. Winn, Jason T. Wright   +80 more
semanticscholar   +1 more source

TESS Data for Asteroseismology: Photometry [PDF]

Astronomical Journal, 2021
Over the last two decades, asteroseismology has increasingly proven to be the observational tool of choice for the study of stellar physics, aided by the high quality of data available from space-based missions such as CoRoT, Kepler, K2, and the ...
R. Handberg, M. Lund, T. White, O. Hall, D. Buzasi, B. Pope, J. Hansen, C. von Essen, L. Carboneau, D. Huber, R. Vanderspek, M. Fausnaugh, P. Tenenbaum, J. Jenkins   +13 more
semanticscholar   +1 more source