Results 131 to 140 of about 14,588 (266)

Asteroseismology of pulsating DA white dwarfs with fully evolutionary models

EPJ Web of Conferences, 2013
We present a new approach for asteroseismology of DA white dwarfs that consists in the employment of a large set of non-static, physically sound, fully evolutionary models representative of these stars.
Althaus L.G., Córsico A.H., Romero A.D., Bertolami M.M. Miller   +3 more
doaj   +1 more source

White-Dwarf Asteroseismology With the Kepler Space Telescope

Frontiers in Astronomy and Space Sciences, 2020
In the course of their evolution, white-dwarf stars go through at least one phase of variability in which the global pulsations they undergo allow astronomers to peer into their interiors, making it possible to shed light on their deep inner structure ...
Alejandro H. Córsico, Alejandro H. Córsico   +1 more
doaj   +1 more source

Precise Estimates of the Physical Parameters for the Exoplanet System HD-17156 Enabled by HST FGS Transit and Asteroseismic Observations

, 2010
We present observations of three distinct transits of HD 17156b obtained with the Fine Guidance Sensors (FGS) on board the Hubble Space Telescope} (HST).
Borucki, Carter, Charbonneau, Charbonneau, Chatterjee, Cochran, David Charbonneau, Demarque, Edmund P. Nelan, Fabrycky, Fischer, Ford, Ford, Fortney, Gilliland, Gilliland, Grillmair, Hans Kjeldsen, Holman, Irwin, Jørgen Christensen-Dalsgaard, Mandel, Mandel, Matthew J. Holman, Narita, Nelan, Peter R. McCullough, Philip Nutzman, Ronald L. Gilliland, Schultz, Seager, Sozzetti, Takeda, Timothy M. Brown, Torres, Winn, Winn, Wu, Yi   +38 more
core   +1 more source

Asteroseismology of red giants & galactic archaeology

, 2017
Red-giant stars are low- to intermediate-mass ($M \lesssim 10$~M$_{\odot}$) stars that have exhausted hydrogen in the core. These extended, cool and hence red stars are key targets for stellar evolution studies as well as galactic studies for several ...
A. Baglin, A. Datta, A. Helmi, A. Miglio, B. Mosser, B. Mosser, B. Mosser, B. Mosser, B. Paxton, C. Aerts, C. Allende Prieto, C. Chiappini, D. Kawata, D. Stello, D. Yong, D.R. Soderblom, E. Böhm-Vitense, E. Guggenberger, E.P. Bellinger, G.C. Angelou, G.R. Ricker, H. Kjeldsen, H. Lamb, H. Rauer, H.-W. Rix, I. Minchev, I. Minchev, J. Bland-Hawthorn, J. Bovy, J. Christensen-Dalsgaard, J. Christensen-Dalsgaard, J. Kumamoto, J. Lattanzio, K. Belkacem, K. Freeman, K. Schwarzschild, L. Girardi, L. Lindegren, M. Bergemann, M. Gabriel, M. Martig, M. Martig, M. Ness, M. Ness, M. Ness, M. Tassoul, M.A.C. Perryman, M.R. Merrifield, N. Gai, N. Langer, O. Creevey, P. Gaulme, P. Goldreich, P. Goldreich, P. Jofré, P. Ledoux, R. Kippenhahn, R. Trampedach, R.K. Ulrich, S. Hekker, S. Hekker, S. Refsdal, S. Sharma, S.B. Howell, S.R. Loebman, T. Constantino, T. Kallinger, T.M. Brown, T.R. Bedding, T.R. White, V.M. Canuto, W.J. Borucki, W.J. Chaplin   +72 more
core   +1 more source

Fast and Automated Oscillation Frequency Extraction Using Bayesian Multi-Modality

Frontiers in Astronomy and Space Sciences, 2019
Since the advent of CoRoT, and NASA Kepler and K2, the number of low- and intermediate-mass stars classified as pulsators has increased very rapidly with time, now accounting for several 104 targets.
Enrico Corsaro
doaj   +1 more source

Progress in Global Helioseismology: A New Light on the Solar Modeling Problem and Its Implications for Solar-Like Stars

Frontiers in Astronomy and Space Sciences, 2019
Since the first observations of solar oscillations in 1960, helioseismology has probably been one of the most successful fields of astrophysics.
Gaël Buldgen, Gaël Buldgen, Gaël Buldgen, Sébastien Salmon, Arlette Noels   +4 more
doaj   +1 more source

Fundamental Properties of Kepler Planet-Candidate Host Stars using Asteroseismology [PDF]

, 2013
We have used asteroseismology to determine fundamental properties for 66 Kepler planet-candidate host stars, with typical uncertainties of 3% and 7% in radius and mass, respectively.
Aguirre, Victor Silva, Arentoft, Torben, Barclay, Thomas, Basu, Sarbani, Bedding, Timothy R., Buchhave, Lars A., Burke, Christopher J., Chaplin, William J., Christensen-Dalsgaard, Jørgen, Christiansen, Jessie L., Elsworth, Yvonne P., Fischer, Debra A., Gilliland, Ronald L., Haas, Michael R., Handberg, Rasmus, Hekker, Saskia, Howard, Andrew W., Huber, Daniel, Isaacson, Howard, Karoff, Christoffer, Kawaler, Steven D., Kjeldsen, Hans, Latham, David W., Lissauer, Jack J., Lund, Mikkel N., Lundkvist, Mia, Marcy, Geoffrey W., Metcalfe, Travis S., Miglio, Andrea, Mullally, Fergal, Rowe, Jason F., Sanchis-Ojeda, Roberto, Stello, Dennis, Thompson, Susan E.   +33 more
core   +2 more sources

Asteroseismic Signature of a Large Active Region

Frontiers in Astronomy and Space Sciences, 2019
Axisymmetric magnetic activity on the Sun and sun-like stars increases the frequencies of the modes of acoustic oscillation. However, it is unclear how a corotating patch of activity affects the oscillations, since such a perturbation is unsteady in the ...
Emanuele Papini, Laurent Gizon, Laurent Gizon   +2 more
doaj   +1 more source

PBjam: Asteroseismology for everyone

, 2021
Asteroseismology is an exceptional tool for measuring fundamental stellar properties. The CoRoT, Kepler and TESS missions have observed thousands of stars that oscillate in a similar way as our Sun. This allows us to place tight constraints on their mass, radius and even age, which are important for understanding stellar structure and evolution ...
Nielsen, M.B, Guy Davies, Alex Lyttle, Lindsey Carboneau   +3 more
openaire   +2 more sources

LS IV — 14°116 : A Time-Resolved Spectroscopic Study

Open Astronomy, 2017
LSIV-14 116 is a very unusual subdwarf B star. It pulsates non-radially with high-order g-modes, these pulsations are unexpected and unexplained, as the effective temperature is 6 000K hotter than the blue edge of the hot subdwarf g-mode instability ...
Martin Pamela, Jeffery C. Simon
doaj   +1 more source