Asteroseismology of the young open cluster NGC 2516. I. Photometric and spectroscopic observations [PDF]
Astronomy & Astrophysics, 2023 Asteroseismic modelling of isolated stars presents significant challenges due to the difficulty in accurately determining stellar parameters, particularly the stellar age.
Gang Li +10 more
semanticscholar +1 more source
On the Diversity of Mixing and Helium Core Masses of B-type Dwarfs from Gravity-mode Asteroseismology [PDF]
Astrophysical Journal, 2022 The chemical evolution of the galaxy is largely guided by the yields from massive stars. Their evolution is heavily influenced by their internal mixing, allowing the stars to live longer and yield a more massive helium core at the end of their main ...
M. G. Pedersen
semanticscholar +1 more source
Integrated mass loss of evolved stars in M4 using asteroseismology [PDF]
Monthly notices of the Royal Astronomical Society, 2022 Mass loss remains a major uncertainty in stellar modelling. In low-mass stars, mass loss is most significant on the red giant branch (RGB), and will impact the star’s evolutionary path and final stellar remnant.
Madeline Howell +3 more
semanticscholar +1 more source
Asteroseismology of the multiple stellar populations in the globular cluster M4 [PDF]
Astronomy & Astrophysics, 2022 We present a new asteroseismic analysis of the stars in the globular cluster (GC) M4 based on the data collected by the K2 mission. We report the detection of solar-like oscillation in 37 stars, 32 red giant branch (RGB) and six red horizontal branch ...
M. Tailo +8 more
semanticscholar +1 more source
Asteroseismology of 3642 Kepler Red Giants: Correcting the Scaling Relations Based on Detailed Modeling [PDF]
Astrophysical Journal, 2022 This paper presents a correction to the scaling relations for red giant stars using model-based masses and radii. We measure radial-mode frequencies from Kepler observations for 3642 solar-like oscillators on the red giant branch and use them to ...
Tanda 坦达 Li 李 +5 more
semanticscholar +1 more source
Constraining equation of state groups from $g$-mode asteroseismology [PDF]
, 2022 Buoyancy-restored modes inside neutron stars depend sensitively on both the microphysical (e.g., composition and entropy gradients) and macrophysical (e.g., stellar mass and radius) properties of the star.
Hao-Jui Kuan +3 more
semanticscholar +1 more source
Mixed-mode Asteroseismology of Red Giant Stars Through the Luminosity Bump [PDF]
Astrophysical Journal, 2022 Most current models of low-mass red giant stars do not reproduce the observed position of the red giant branch luminosity bump, a diagnostic of the maximum extent of the convective envelope during the first dredge up. Global asteroseismic parameters, the
C. Lindsay, J. Ong, S. Basu
semanticscholar +1 more source
Asteroseismology of the double-radial mode δ Scuti star BP Pegasi [PDF]
Monthly notices of the Royal Astronomical Society, 2022 Using the ASAS data, we determine the pulsational frequencies of the high-amplitude δ Sct star BP Pegasi. The analysis revealed only the two known, independent frequencies that we use to perform the seismic analysis of the star.
J. Daszyńska-Daszkiewicz +3 more
semanticscholar +1 more source
Asteroseismology with SuperWASP [PDF]
Proceedings of the International Astronomical Union, 2013 AbstractThe highly successful SuperWASP planetary transit finding programme has surveyed a large fraction of both the northern and southern skies. There now exists in its archive over 420 billion photometric measurements for more than 31 million stars.
Smalley, Barry, Smalley, Barry
openaire +4 more sources
A 20 Second Cadence View of Solar-type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Recharacterization of π Men c [PDF]
Astronomical Journal, 2021 We present an analysis of the first 20 second cadence light curves obtained by the TESS space telescope during its extended mission. We find improved precision of 20 second data compared to 2 minute data for bright stars when binned to the same cadence (≈
D. Huber +52 more
semanticscholar +1 more source