45 citations · 429 across the 18 of their papers we have counts for
23 papers · 1 filter
Cooling Delays from Iron Sedimentation and Iron Inner Cores in White Dwarfs
M. E. Caplan, I. F. Freeman, C. J. Horowitz +2
Do white dwarfs have inner cores made of iron? Neutron rich nuclei like Fe experience a net gravitational force and sediment toward the core. Using new phase diagrams and mo…
Age-Dating Red Giant Stars Associated with Galactic Disk and Halo Substructures
Samuel K. Grunblatt, Joel C. Zinn, Adrian M. Price-Whelan +12
The vast majority of Milky Way stellar halo stars were likely accreted from a small number (3) of relatively large dwarf galaxy accretion events. However, the timing of t…
Asteroseismic Inference of the Central Structure in a Subgiant Star
Earl P. Bellinger, Sarbani Basu, Saskia Hekker +2
Asteroseismic measurements enable inferences of the underlying stellar structure, such as the density and the speed of sound at various points within the interior of the star. This…
Inverse analysis of asteroseismic data: a review
Earl P. Bellinger, Sarbani Basu, Saskia Hekker
Asteroseismology has emerged as the best way to characterize the global and internal properties of nearby stars. Often, this characterization is achieved by fitting stellar evoluti…
TESS observations of Cepheid stars: first light results
E. Plachy, A. Pál, A. Bódi +33
We present the first analysis of Cepheid stars observed by the TESS space mission in Sectors 1 to 5. Our sample consists of 25 pulsators: ten fundamental mode, three overtone and t…
A study of the stellar photosphere-hydrogen ionisation front interaction in pulsating variables using period-color relations
Susmita Das, Shashi M. Kanbur, Earl P. Bellinger +2
Period-color (PC) relations may be used to study the interaction of the stellar photosphere and the hydrogen ionization front (HIF). RR Lyraes (RRLs) and long period classical Ceph…