1–5 Jul 2019
Geological Museum
Europe/Copenhagen timezone

Uncovering the population of eclipsing double white dwarfs with ZTF

2 Jul 2019, 10:05
20m
Main Auditorium (Geological Museum)

Main Auditorium

Geological Museum

Øster Voldgade 5-7 DK-1350 Copenhagen

Speaker

Joannes van Roestel (California Institute of Technology)

Description

The Zwicky Transient Facility (ZTF) is in the process of obtaining well sampled lightcurves of all stars in the Northern hemisphere. In this sample of billions of lightcurves, we can expect to find on the order of a hundred eclipsing double white dwarfs. We are in the process of systematically searching the ZTF lightcurve for these systems, both by doing targeted searches as well a general search using machine learning classifiers. Initial results are promising; we have detected a handful of eclipsing systems and sensitive to cooler and more compact eclipsing double white dwarfs that have currently been found. I will present an overview of our search for eclipsing double white dwarf in ZTF data, present the eclipsing double white dwarf systems found so far, and discuss how ZTF can be used to study the population of double white dwarfs.

Primary author

Joannes van Roestel (California Institute of Technology)

Co-authors

Michael Coughlin (California Institute of Technology) Kevin Burdge (California Institute of Technology) Dr Thomas Kupfer Dr Thomas Prince (California Institute of Technology)

Presentation materials

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