activity
20082026
most citedPreparation of Kepler lightcurves for asteroseismic analyses

286 citations · 1.4k across the 29 of their papers we have counts for

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21 papers · 1 filter

astro-ph.SR2026

Sub-surface structural changes associated with successive 11-yr solar activity cycles have been progressively more confined near the surface: new helioseismic results on Cycles 22 -- 25 from BiSON

William J. Chaplin, Sarbani Basu, Rachel Howe +3

We use Sun-as-a-star helioseismology data, collected by the Birmingham Solar-Oscillations Network (BiSON), to examine the relationship between the solar-cycle-induced frequency shi…

astro-ph.SR2026

The seismic diversity of four successive solar cycle minima as observed by the Birmingham Solar-Oscillations Network (BiSON)

Sarbani Basu, William J. Chaplin, Rachel Howe +3

We have used data collected by the Birmingham Solar-Oscillations Network (BiSON) to perform a helioseismic diagnosis of changes to the Sun's internal structure between four success…

astro-ph.SR2026

Constraints on sunspot group lifetimes from far-side Sun-as-a-star helioseismology with BiSON

William J. Chaplin, Rachel Howe, Sarbani Basu +5

Frequencies of low-degree solar p modes are sensitive to activity over the entire Sun, including the unobservable far-side hemisphere. When frequency shifts extracted from week-lon…

astro-ph.SR2024★ 70 cited

APOKASC-3: The Third Joint Spectroscopic and Asteroseismic catalog for Evolved Stars in the Kepler Fields

Marc H. Pinsonneault, Joel C. Zinn, Jamie Tayar +38

In the third APOKASC catalog, we present data for the complete sample of 15,808 evolved stars with APOGEE spectroscopic parameters and Kepler asteroseismology. We used ten independ…

astro-ph.SR2024★ 23 cited

Nature vs. Nurture: Distinguishing Effects from Stellar Processing and Chemical Evolution on Carbon and Nitrogen in Red Giant Stars

John D. Roberts, Marc H. Pinsonneault, Jennifer A. Johnson +16

The surface [C/N] ratios of evolved giants are strongly affected by the first dredge-up (FDU) of nuclear-processed material from stellar cores. C and N also have distinct nucleosyn…

astro-ph.SR2023★ 15 cited

Investigating Gaia EDR3 parallax systematics using asteroseismology of Cool Giant Stars observed by Kepler, K2, and TESS II. Deciphering Gaia parallax systematics using red clump stars

Saniya Khan, Richard I. Anderson, Andrea Miglio +2

We analyse Gaia EDR3 parallax systematics as a function of magnitude and sky location using a recently published catalogue of 12,500 asteroseismic red-giant star distances. We sele…