Results 121 to 130 of about 14,588 (266)

Asteroseismology and Gaia: Testing Scaling Relations Using 2200 Kepler Stars with TGAS Parallaxes [PDF]

open access: yes, 2017
We present a comparison of parallaxes and radii from asteroseismology and Gaia DR1 (TGAS) for 2200 Kepler stars spanning from the main sequence to the red-giant branch.
D. Huber   +19 more
semanticscholar   +1 more source

Asteroseismology of stars on the upper main sequence

open access: yes, 2012
I review the properties of pulsators located on the upper main sequence in the HR diagram and discuss asteroseismic inferences on the internal structure of stars of spectral type A and B.
Lenz, P.
core   +1 more source

Helioseismology in a bottle: modal acoustic velocimetry

open access: yesNew Journal of Physics, 2014
Measurement of the differential rotation of the Sunʼs interior is one of the great achievements of helioseismology, providing important constraints for stellar physics. The technique relies on observing and analyzing rotationally-induced splittings of p -
Santiago Andrés Triana   +5 more
doaj   +1 more source

Looking into dark matter with asteroseismology

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Dark matter remains as an elusive component of modern Cosmology. According to previous research, stellar physics observables can be affected by the presence of hypothetical dark matter particles, which can be produced or accreted into the stars.
Adrián Ayala
doaj   +1 more source

An asteroseismology explorer [PDF]

open access: yes, 2008
In response to a NASA opportunity, a proposal has been made to study the concept of an Asteroseismology Explorer (ASE). The goal of the ASE would be to measure solar-like oscillations on many (perhaps hundreds) of stars during a 1-year mission, including many members of open clusters.
Brown, T. M., Cox, A. N.
openaire   +2 more sources

Asteroseismology of 16,000 Kepler Red Giants: Global Oscillation Parameters, Masses, and Radii [PDF]

open access: yesAstrophysical Journal Supplement Series, 2018
The Kepler mission has provided exquisite data to perform an ensemble asteroseismic analysis on evolved stars. In this work we systematically characterize solar-like oscillations and granulation for 16,094 oscillating red giants, using end-of-mission ...
Jie Yu   +6 more
semanticscholar   +1 more source

Observations and asteroseismological analysis of the rapid subdwarf B pulsator EC 09582-1137 [PDF]

open access: yes, 2009
We made photometric and spectroscopic observations of the rapidly pulsating subdwarf B star EC 09582-1137 with the aim of determining the target's fundamental structural parameters from asteroseismology.
Brassard   +34 more
core   +1 more source

NONLINEAR ASTEROSEISMOLOGY OF RR LYRAE [PDF]

open access: yesThe Astrophysical Journal, 2012
The observations of the Kepler space telescope revealed that fundamental-mode RR Lyrae stars may show various radial overtones. The presence of multiple radial modes may allow us to conduct nonlinear asteroseismology: comparison of mode amplitudes and frequency shifts between observations and models.
Fergal Mullally   +9 more
openaire   +4 more sources

The SAGA so far: reading the history of the Galaxy with asteroseismology

open access: yesEPJ Web of Conferences, 2015
Asteroseismology has the capability of delivering stellar properties which would otherwise be inaccessible, such as radii, masses and thus ages of stars.
Casagrande Luca   +5 more
doaj   +1 more source

Stellar hydrodynamics caught in the act: Asteroseismology with CoRoT and Kepler

open access: yes, 2011
Asteroseismic investigations, particularly based on data on stellar oscillations from the CoRoT and Kepler space missions, are providing unique possibilities for investigating the properties of stellar interiors.
Auvergne   +58 more
core   +1 more source

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