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WOCS 5379: Detailed Analysis of the Evolution of a Post-Mass-Transfer Blue Straggler
Meng Sun, Robert D. Mathieu, Emily M. Leiner +1
The blue-straggler binary WOCS 5379 is a member of the old (6-7 Gyr) open cluster NGC 188. WOCS 5379 comprises a blue straggler star with a white dwarf companion in a 120-day eccen…
TESS Asteroseismology of Mensae: Benchmark Ages for a G7 Dwarf and its M-dwarf Companion
Ashley Chontos, Daniel Huber, Travis A. Berger +27
Asteroseismology of bright stars has become increasingly important as a method to determine fundamental properties (in particular ages) of stars. The Kepler Space Telescope initiat…
Stability and pulsation of the first dark stars
Tanja Rindler-Daller, Katherine Freese, Richard H. D. Townsend +1
The first bright objects to form in the Universe might not have been "ordinary" fusion-powered stars, but "Dark Stars" (DSs) powered by the annihilation of dark matter (DM) in the…
How the breakout-limited mass in B-star centrifugal magnetospheres controls their circumstellar H-alpha emission
Stanley P. Owocki, Matt E. Shultz, Asif ud-Doula +3
Strongly magnetic B-type stars with moderately rapid rotation form `centrifugal magnetospheres' (CMs), from the magnetic trapping of stellar wind material in a region above the Kep…
Improved Asymptotic Expressions for the Eigenvalues of Laplace's Tidal Equations
R. H. D. Townsend
Laplace's tidal equations govern the angular dependence of oscillations in stars when uniform rotation is treated within the so-called traditional approximation. Using a perturbati…
The Aarhus red giants challenge II. Stellar oscillations in the red giant branch phase
J. Christensen-Dalsgaard, V. Silva Aguirre, S. Cassisi +23
Context. The large quantity of high-quality asteroseismic data that obtained from space-based photometric missions and the accuracy of the resulting frequencies motivate a careful…