30 mai 2017 à 2 juin 2017
Impérial Palace
Fuseau horaire Europe/Paris

Looking for truffles in trash: The new DMoff veto in Einstein@Home searches for continuous gravitational waves

31 mai 2017, 17:46
4m
Impérial Palace

Impérial Palace

Allée de l'Impérial, Annecy
Poster Posters

Orateur

Dr Sylvia Zhu (Albert Einstein Institute)

Description

In the current era of the advanced LIGO and Virgo detectors, we are closer than ever to detecting the first continuous gravitational wave signal. At the same time, our searches are becoming increasingly sensitive, to both astrophysical sources and the detector artifacts that can mimic the signals that we search for. We developed a straightforward veto to quickly and effectively exclude signal candidates that arise from these artifacts: We run a simplified version of our search but with the Doppler modulation turned off (DMoff), making instrumental artifacts more prominent while suppressing astrophysical signals. Using this new veto, we were able to exclude >99.9% of the thousands of candidates from the recent Einstein@Home all-sky search as having terrestrial origins. I will discuss the current design and implementation of this veto, as well as the prospects for its use in future searches for continuous gravitational waves.

Auteur principal

Dr Sylvia Zhu (Albert Einstein Institute)

Co-auteurs

Dr Maria Alessandra Papa (Max Planck Institute for Gravitational Physics) Dr Sinéad Walsh (University of Wisconsin - Milwaukee)

Documents de présentation

Aucun document.