Results 81 to 90 of about 4,382 (198)

Asteroseismology with COROT [PDF]

International Astronomical Union Colloquium, 2004
AbstractThe COROT project has been developed in the framework of the CNES small satellite programme, with European and Brazilian cooperation. It will be launched in 2006. It is dedicated to seismology and detection of telluric planets. It will perform relative broad-band photometry in visible light during very long (150 d) observing runs in the same ...
Gérard Vauclair, Claude Catala, Annie Baglin, Michel Auvergne, Eric Michel   +4 more
openaire   +1 more source

Influence of Magnetic Activity on the Determination of Stellar Parameters Through Asteroseismology

Frontiers in Astronomy and Space Sciences, 2019
Magnetic activity changes the gravito-acoustic modes of solar-like stars and in particular their frequencies. There is an angular-degree dependence that is believed to be caused by the non-spherical nature of the magnetic activity in the stellar ...
Fernando Pérez Hernández, Fernando Pérez Hernández, Rafael A. García, Rafael A. García, Savita Mathur, Savita Mathur, Angela R. G. Santos, Clara Régulo, Clara Régulo   +8 more
doaj   +1 more source

Synergy between asteroseismology and exoplanetary science

, 2021
Over the past decade, space-based asteroseismology has played an important role in the characterization of host stars and their planetary systems. The future looks even brighter, with space missions such as TESS and PLATO ready to take on this legacy. In
Campante, Tiago
core   +1 more source

Isochrone-cloud fitting and asteroseismology of the Kepler open cluster NGC 6866

Astronomy & Astrophysics
Context. Isochrone fitting is a classical method used to determine the ages of open clusters. However, the derived ages depend strongly on the chosen input physics of the stellar models used to deduce the isochrones.
Wang Haotian, Li Gang, Fritzewski Dario J., Van Reeth Timothy, Aerts Conny   +4 more
doaj   +1 more source

A small survey of UV-bright stars around the northern ecliptic pole: seeking new p-mode sdB variables for the TESS mission

Open Astronomy, 2019
Starting in 2019, the TESS mission will monitor the northern ecliptic pole for 1 year. Data will be collected at 30-minute and 2-minute cadences, and only a limited amount of slots will be reserved for targets requiring a 20- second cadence.
Prins Saskia, Telting John, Østensen Roy   +2 more
doaj   +1 more source

Determining the incidence rate of magnetic δ Scuti candidates with CoRoT

Astronomy & Astrophysics
Context.δ Scuti stars are pulsating stars constituting the δ Scuti instability strip in the Hertzsprung-Russell (HR) diagram, which consists of A and F stars of various evolutionary stages.
Paul G., Neiner C., Catala C., Labadie-Bartz J.   +3 more
doaj   +1 more source

Granulation signatures as seen by Kepler short-cadence data

Astronomy & Astrophysics
Context. Stellar granulation arises from near-surface convection and is imprinted in stellar photometric time series. Yet the links between granulation observables and fundamental stellar properties remain underexploited. Aims.
Larsen J. R., Lundkvist M. S., Davies G. R., Nielsen M. B.   +3 more
doaj   +1 more source

Revisiting the Impact of Stellar Magnetic Activity on the Detectability of Solar-Like Oscillations by Kepler

Frontiers in Astronomy and Space Sciences, 2019
Over 2,000 stars were observed for 1 month with a high enough cadence in order to look for acoustic modes during the survey phase of the Kepler mission. Solar-like oscillations have been detected in about 540 stars.
Savita Mathur, Savita Mathur, Rafael A. García, Rafael A. García, Lisa Bugnet, Lisa Bugnet, Ângela R.G. Santos, Netsha Santiago, Paul G. Beck, Paul G. Beck, Paul G. Beck   +10 more
doaj   +1 more source

Asteroseismology Applied to Constrain Structure Parameters of δ Scuti Stars [PDF]

Asteroseismology is a powerful tool to probe stellar structure. Spaceborne instruments like CoRoT, Kepler, and TESS have observed the oscillations of numerous stars, among which δ Scutis are particularly interesting, owing to their fast rotation and ...
Panda, Subrata Kumar, Hanasoge, Shravan, Murphy, Simon J., Bedding, Timothy R., Dhanpal, Siddharth   +4 more
core   +1 more source

Inverse Problems in Asteroseismology

CoRR, 2018
256 pages, 68 figures, Ph.D. dissertation in Computer Science at the Georg-August-University School of Science (GAUSS) G\"ottingen undertaken in the context of the International Max Planck Research School for Solar System Science under the supervision of Dr. ir. Saskia Hekker (Group Leader, SAGE Group) and Prof. Dr.
openaire   +3 more sources