336 citations
- Uniwersytet Komisji Edukacji Narodowej w KrakowiePL14 papers
- Nordic Optical TelescopeES13 papers
- KU LeuvenBE9 papers
- University of ValparaísoCL9 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Nicolaus Copernicus Astronomical CenterPL8 papers
- Embry–Riddle Aeronautical UniversityUS7 papers
- Osservatorio Astrofisico di TorinoIT7 papers
- California Institute of TechnologyUS6 papers
- Institute of PhysicsPL6 papers
- Aarhus UniversityDK5 papers
- Center for Astrophysics Harvard & SmithsonianUS5 papers
10 papers · 1 filter
Evolutionary modelling of subdwarf B stars using MESA with the predictive mixing and convective premixing schemes
J. Ostrowski, A. Baran, S. Sanjayan +1
Results of evolutionary modelling of subdwarf B stars are presented. For the first time, we explore the core and near-core mixing in the subdwarf B stars using new algorithms avail…
Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS: I. Asteroseismology of the GW Vir stars RX J2117+3412, HS 2324+3944, NGC 6905, NGC 1501, NGC 2371, and K 1-16
Alejandro H. Córsico, Murat Uzundag, S. O. Kepler +7
In this paper, we present a detailed asteroseismological analysis of six GW Vir stars including the observations collected by the TESS mission. We processed and analyzed TESS obser…
A search for variable subdwarf B stars in TESS Full Frame Images -- I. Variable objects in the southern ecliptic hemisphere
S. K. Sahoo, A. S. Baran, S. Sanjayan +1
We report the results of our search for pulsating subdwarf B stars in Full Frame Images, sampled at 30 min cadence and collected during Year 1 of the TESS mission. Year 1 covers mo…
Chains of Planets in Mean Motion Resonances Arising from Oligarchic Growth
Sarah J. Morrison, Rebekah I. Dawson, Mariah G. MacDonald
Exoplanet systems with multiple planets in mean motion resonances have often been hailed as a signpost of disk driven migration. Resonant chains like Kepler-223 and Kepler-80 consi…
EPIC 216747137: a new HW Vir eclipsing binary with a massive sdOB primary and a low-mass M-dwarf companion
R. Silvotti, V. Schaffenroth, U. Heber +8
EPIC 216747137 is a new HW~Virginis system discovered by the Kepler spacecraft during its K2 "second life". Like the other HW Vir systems, EPIC 216747137 is a post-common-envelope…
An Improved Spin-Down Rate for the Proposed White-Dwarf Pulsar AR Scorpii
Yadira Gaibor, Peter Garnavich, Colin Littlefield +2
We analyze rapid-cadence, multiwavelength photometry of AR Scorpii from three observatories, covering five observing seasons. We measure the arrival times of the system's beat puls…