Results 111 to 120 of about 5,073 (240)
Testing asteroseismology with Gaia DR2: hierarchical models of the Red Clump [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Asteroseismology provides fundamental stellar parameters independent of distance, but subject to systematics under calibration. Gaia DR2 has provided parallaxes for a billion stars, which are offset by a parallax zero-point.
O. Hall +10 more
semanticscholar +1 more source
The SAGA so far: reading the history of the Galaxy with asteroseismology
EPJ 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
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
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 +4 more
doaj +1 more source
21 pages; This is a pre-print of an invited chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N.
Bowman, Dominic M., Bugnet, Lisa
openaire +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 +2 more
doaj +1 more source
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
Asteroseismology and Gaia: Testing Scaling Relations Using 2200 Kepler Stars with TGAS Parallaxes [PDF]
, 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
Toward a New Paradigm in the Analysis of Asteroseismic Lightcurves
Frontiers in Astronomy and Space Sciences, 2020 This paper aims at being a provocative guide to the future of asteroseismology from the perspective of the analysis of time series, where the fundamentals of harmonic analysis are subjected to stress tests.
Juan Carlos Suárez +8 more
doaj +1 more source
Editorial: White Dwarfs in the Age of the Great Collaborations
Frontiers in Astronomy and Space Sciences, 2022 Alejandro Hugo Córsico +6 more
doaj +1 more source