Highlights of Discoveries for δ Scuti Variable Stars from the Kepler Era

Guzik, Joyce Ann

doi:10.3389/fspas.2021.653558

Highlights of Discoveries for δ Scuti Variable Stars from the Kepler Era

Journal Article · Tue Apr 20 00:00:00 EDT 2021 · Frontiers in Astronomy and Space Sciences

DOI:https://doi.org/10.3389/fspas.2021.653558· OSTI ID:1822796

^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The NASA Kepler and follow-on K2 mission (2009–2018) left a legacy of data and discoveries, finding thousands of exoplanets, and also obtaining high-precision long time-series data for hundreds of thousands of stars, including many types of pulsating variables. Here we highlight a few of the ongoing discoveries from Kepler data on δ Scuti pulsating variables, which are core hydrogen-burning stars of about twice the mass of the Sun. We discuss many unsolved problems surrounding the properties of the variability in these stars, and the progress enabled by Kepler data in using pulsations to infer their interior structure, a field of research known as asteroseismology.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: 89233218CNA000001

OSTI ID:: 1822796

Report Number(s):: LA-UR--21-20345

Journal Information:: Frontiers in Astronomy and Space Sciences, Journal Name: Frontiers in Astronomy and Space Sciences Vol. 8; ISSN 2296-987X

Publisher:: Frontiers Research FoundationCopyright Statement

Country of Publication:: United States

Language:: English

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UNEXPECTED SERIES OF REGULAR FREQUENCY SPACING OF δ SCUTI STARS IN THE NON-ASYMPTOTIC REGIME. II. SAMPLE–ECHELLE DIAGRAMS AND ROTATION Paparó, M.; Benkő, J. M.; Hareter, M. The Astrophysical Journal Supplement Series, Vol. 224, Issue 2 https://doi.org/10.3847/0067-0049/224/2/41	journal	June 2016
Tidally Excited Oscillations in Heartbeat Binary Stars: Pulsation Phases and Mode Identification Guo, Zhao; Shporer, Avi; Hambleton, Kelly The Astrophysical Journal, Vol. 888, Issue 2 https://doi.org/10.3847/1538-4357/ab58c2	journal	January 2020
Asteroseismic Modeling of Gravity Modes in Slowly Rotating A/F Stars with Radiative Levitation Mombarg, Joey S. G.; Dotter, Aaron; Van Reeth, Timothy The Astrophysical Journal, Vol. 895, Issue 1 https://doi.org/10.3847/1538-4357/ab8d36	journal	May 2020
Detailed Characterization of Heartbeat Stars and Their Tidally Excited Oscillations Cheng, Shelley J.; Fuller, Jim; Guo, Zhao The Astrophysical Journal, Vol. 903, Issue 2 https://doi.org/10.3847/1538-4357/abb46d	journal	November 2020
The Interior Angular Momentum of Core Hydrogen Burning Stars from Gravity-mode Oscillations Aerts, C.; Reeth, T. Van; Tkachenko, A. The Astrophysical Journal, Vol. 847, Issue 1 https://doi.org/10.3847/2041-8213/aa8a62	journal	September 2017

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