Results 61 to 70 of about 6,468 (258)

The BAyesian STellar Algorithm (BASTA): a fitting tool for stellar studies, asteroseismology, exoplanets, and Galactic archaeology [PDF]

, 2021
We introduce the public version of the BAyesian STellar Algorithm (BASTA), an open-source code written in Python to determine stellar properties based on a set of astrophysical observables.
V. Borsen-Koch, J. L. Rørsted, A. B. Justesen, A. Stokholm, K. Verma, M. Winther, E. Knudstrup, K. Nielsen, C. Sahlholdt, J. R. Larsen, S. Cassisi, A. Serenelli, L. Casagrande, J. Christensen-Dalsgaard, G. Davies, J. Ferguson, M. Lund, A. Weiss, T. White   +18 more
semanticscholar   +1 more source

A Need to Revise Stellar Opacities from Asteroseismology of δ Scuti Stars [PDF]

Astrophysical Journal Letters, 2022
We construct seismic models of the four double-mode radial δ Scuti stars adopting opacities from three databases: OPAL, OP, and OPLIB. The aim is to find the models that fit the observed frequencies of the two radial modes and have the effective ...
J. Daszyńska-Daszkiewicz, P. Walczak, A. Pamyatnykh, W. Szewczuk, W. Niewiadomski   +4 more
semanticscholar   +1 more source

Pulsating stars and the Virtual Observatory

EPJ Web of Conferences, 2017
Virtual Observatory is one of the most used internet-based protocols in astronomy. It has become somewhat natural to find, manage, compare, visualize and download observations from very different archives of astronomical observations with no effort.
Suárez Juan Carlos
doaj   +1 more source

Tracing early stellar evolution with asteroseismology: pre-main sequence stars in NGC 2264

EPJ Web of Conferences, 2015
Asteroseismology has been proven to be a successful tool to unravel details of the internal structure for different types of stars in various stages of their main sequence and post-main sequence evolution.
Zwintz Konstanze, Fossati Luca, Ryabchikova Tatiana, Guenther David, Aerts Conny   +4 more
doaj   +1 more source

Nonanalytic Relativistic r-Modes of Slowly Rotating Nonbarotropic Neutron Stars

Universe, 2022
We show that the r-modes of slowly rotating nonbarotropic neutron stars are described by nonanalytic functions of stellar angular velocity, which makes the perturbation techniques, used so far in the r-mode theoretical studies, inapplicable.
Kirill Y. Kraav, Mikhail E. Gusakov, Elena M. Kantor   +2 more
doaj   +1 more source

Synergies between Exoplanet Characterization and Asteroseismology

, 2022
This lecture explores the synergies between exoplanet and ...
Artie P. Hatzes
core   +1 more source

Solar-Like Oscillators in the Kepler Era: A Review

Frontiers in Astronomy and Space Sciences, 2021
Many late-type stars across the Milky Way exhibit observable pulsations similar to our Sun that open up a window into stellar interiors. The NASA Kepler mission, a space-based photometric telescope, measured the micro-magnitude luminosity fluctuations ...
Jason Jackiewicz
doaj   +1 more source

Revisiting the δ Scuti star FG Virginis using Kepler K2 and TESS data

Frontiers in Astronomy and Space Sciences, 2022
FG Virginis is a δ Scuti variable star that was the target of several ground-based multisite photometric campaigns from 1992 to 2004. Over 75 pulsation frequencies were detected (Breger et al., Astron.
Joyce A. Guzik, Jason Jackiewicz, Anne M. Hedlund, Anne M. Hedlund   +3 more
doaj   +1 more source

PLATO as it is: A legacy mission for Galactic archaeology

Astronomische Nachrichten, Volume 338, Issue 6, Page 644-661, July 2017., 2017
Deciphering the assembly history of the Milky Way is a formidable task, which becomes possible only if one can produce high‐resolution chrono‐chemo‐kinematical maps of the Galaxy. Data from large‐scale astrometric and spectroscopic surveys will soon provide us with a well‐defined view of the current chemo‐kinematical structure of the Milky Way, but it ...
A. Miglio, C. Chiappini, B. Mosser, G. R. Davies, K. Freeman, L. Girardi, P. Jofré, D. Kawata, B. M. Rendle, M. Valentini, L. Casagrande, W. J. Chaplin, G. Gilmore, K. Hawkins, B. Holl, T. Appourchaux, K. Belkacem, D. Bossini, K. Brogaard, M.‐J. Goupil, J. Montalbán, A. Noels, F. Anders, T. Rodrigues, G. Piotto, D. Pollacco, H. Rauer, C. Allende Prieto, P. P. Avelino, C. Babusiaux, C. Barban, B. Barbuy, S. Basu, F. Baudin, O. Benomar, O. Bienaymé, J. Binney, J. Bland‐Hawthorn, A. Bressan, C. Cacciari, T. L. Campante, S. Cassisi, J. Christensen‐Dalsgaard, F. Combes, O. Creevey, M. S. Cunha, R. S. Jong, P. Laverny, S. Degl'Innocenti, S. Deheuvels, É. Depagne, J. Ridder, P. Di Matteo, M. P. Di Mauro, M.‐A. Dupret, P. Eggenberger, Y. Elsworth, B. Famaey, S. Feltzing, R. A. García, O. Gerhard, B. K. Gibson, L. Gizon, M. Haywood, R. Handberg, U. Heiter, S. Hekker, D. Huber, R. Ibata, D. Katz, S. D. Kawaler, H. Kjeldsen, D. W. Kurtz, N. Lagarde, Y. Lebreton, M. N. Lund, S. R. Majewski, P. Marigo, M. Martig, S. Mathur, I. Minchev, T. Morel, S. Ortolani, M. H. Pinsonneault, B. Plez, P. G. Prada Moroni, D. Pricopi, A. Recio‐Blanco, C. Reylé, A. Robin, I. W. Roxburgh, M. Salaris, B. X. Santiago, R. Schiavon, A. Serenelli, S. Sharma, V. Silva Aguirre, C. Soubiran, M. Steinmetz, D. Stello, K. G. Strassmeier, P. Ventura, R. Ventura, N. A. Walton, C. C. Worley   +104 more
wiley   +1 more source

The Dark Side of Neutron Stars

Advances in High Energy Physics, Volume 2013, Issue 1, 2013., 2013
We review severe constraints on asymmetric bosonic dark matter based on observations of old neutron stars. Under certain conditions, dark matter particles in the form of asymmetric bosonic WIMPs can be effectively trapped onto nearby neutron stars, where they can rapidly thermalize and concentrate in the core of the star.
Chris Kouvaris, Konstantin Belotsky
wiley   +1 more source