Results 71 to 80 of about 539 (174)

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

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

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

Magnetic signatures in merger products

Astronomy & Astrophysics
Asteroseismic estimates of the magnetic field strength in the radiative interior of red giant stars depend strongly on the internal stellar structure derived from models.
Muntean N., Bugnet L., Buchele L., Dutta D., Einramhof L., Beck P. G., Barrault L., Liagre B.   +7 more
doaj   +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

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

Stellar Ages of TESS Stars, Adopting Spectroscopic Data from Gaia GSP-Spec

Galaxies
The Gaia DR3 GSP-spec/TESS (GST) catalog combines asteroseismic data from NASA’s TESS mission with spectroscopic data from ESA’s Gaia mission, and contains about 116,000 Red Clump and Red Giant Branch stars, surpassing previous datasets in size and ...
Elisa Denis, Patrick de Laverny, Andrea Miglio, Alejandra Recio-Blanco, Pedro Alonso Palicio, Josefina Montalban, Carlos Abia   +6 more
doaj   +1 more source

The imprint of star formation on stellar pulsations. [PDF]

Nat Commun, 2022
Steindl T, Zwintz K, Vorobyov E.
europepmc   +1 more source

Precise Parameter Determination of the Open Cluster NGC 1647 via Asteroseismology of p-mode Pulsators

The Astrophysical Journal
Asteroseismology of member pulsators provides a robust physical constraint on cluster parameters by linking internal stellar structures to the global properties of the host cluster.
Mingfeng Qin, Jian-Ning Fu, Weikai Zong, Tianqi Cang, Antonio Frasca, Gang Meng, Xiran Xie   +6 more
doaj   +1 more source

The ET mission to search for earth 2.0s. [PDF]

Innovation (Camb), 2022
Ge J, Zhang H, Deng H, Howell SB, ET team.   +4 more
europepmc   +1 more source