Is this project an undergraduate, graduate, or faculty project?
Undergraduate
Project Type
group
Campus
Daytona Beach
Authors' Class Standing
Jacob Becker, Sophomore
Lead Presenter's Name
Jacob Becker
Lead Presenter's College
DB College of Arts and Sciences
Faculty Mentor Name
Mariel Lares
Abstract
We present preliminary results of our study of periodic pulsations among suspected pulsating stars identified during a search for rotation modulation using NASA’s Transiting Exoplanet Survey Satellite (TESS) data. A Lomb-Scargle periodogram analysis was used to identify pulsation modes and distinguish targets between Delta Scudi, Cepheids, and other types of stellar variability. Where possible, cross-validation with prior published classifications was used to confirm our findings. The goal of this work is to further refine stellar age determinations by comparing the rotation rates and ages determined by asteroseismology (pulsations) to gyrochronology (rotational modulation of light curves). Support from NSF grants AST-1910396, AST-2108975 and NASA grants 80NSSC22K0622, 80NSSC21K0245, and NNX16AB76G is gratefully acknowledged.
Did this research project receive funding support (Spark, SURF, Research Abroad, Student Internal Grants, Collaborative, Climbing, or Ignite Grants) from the Office of Undergraduate Research?
No
A Search for Pulsation Among Stars in Wide Binaries
We present preliminary results of our study of periodic pulsations among suspected pulsating stars identified during a search for rotation modulation using NASA’s Transiting Exoplanet Survey Satellite (TESS) data. A Lomb-Scargle periodogram analysis was used to identify pulsation modes and distinguish targets between Delta Scudi, Cepheids, and other types of stellar variability. Where possible, cross-validation with prior published classifications was used to confirm our findings. The goal of this work is to further refine stellar age determinations by comparing the rotation rates and ages determined by asteroseismology (pulsations) to gyrochronology (rotational modulation of light curves). Support from NSF grants AST-1910396, AST-2108975 and NASA grants 80NSSC22K0622, 80NSSC21K0245, and NNX16AB76G is gratefully acknowledged.