A Systematic Search for Main-Sequence Dipper Stars using the Zwicky Transient Facility

In this LINCC Tech Talk, originally aired on 2024 September 12, Andy Tzanidakis (DiRAC Institute, University of Washington) presents "A Systematic Search for Main-Sequence Dipper Stars using the Zwicky Transient Facility." LINCC Tech Talks, hosted by LINCC Frameworks Project Scientists Colin Orion Chandler (DiRAC Institute, University of Washington) are Mi Dai (University of Pittsburg) are typically held the second Thursday of each month, with additional information and schedule available here: https://lsstdiscoveryalliance.org/pro...

Abstract: We present results of a large systematic search for main-sequence dipper stars, conducted across a sample of 60 million FGK main-sequence stars using data from Gaia DR3 and the Zwicky Transient Facility (ZTF). Our work introduces a novel light curve scoring algorithm identifying dipper stars, including a scalable workflow for investigating millions of light curves. We have identified at least 60 new intriguing systems, which are now undergoing further investigation to characterize their astrophysical mechanisms, such as occultations by circumstellar debris. This work represents a significant step forward in understanding the frequency and nature of these enigmatic stars, providing important insights into circumstellar environments and planetary evolution. The discoveries from this study will be compiled into the largest open-source catalog of main-sequence dipper stars, laying the groundwork for future multi-wavelength follow-up studies.