Explore the Universe with Gravitational Waves
Credit : R. Hurt (Caltech-IPAC)
We extended the Bayesian searches for anisotropic stochastic gravitational-wave background to include non-GR polarizations.
The paper "Improved ranking statistics of the GstLAL inspiral search for compact binary coalescences" has been published in Physics Review D.
We developed a rapid parameter estimation for GW signals from a compact binary, using the reduced-order-quadrature technique.
The paper "pygwb: A Python-based Library for Gravitational-wave Background Searches" has been published in The Astrophysical Journal.
We developed a tool to remove contamination due to GW signals leaking into the background model of GstLAL.
We improved the detection algorithm of the GstLAL search pipeline towards the LVK's fourth observing run, leading to the 20% increased sensitivity to GW signals.
We summarized the performance of the GstLAL search pipeline during a mock-data campaign as a preparation for the LVK's fourth observing run.
We developed a formalism to unify the information about the signal probability of a GW event across multiple search pipelines.
We developed a Python-based library for isotropic gravitational-wave background search, "pygwb".
The paper "Bayesian formalism for parameter inference of anisotropic stochastic gravitational wave background" has been published in Physics Review D.
We summarized the specification and new development of GstLAL's template bank toward the LVK's fourth observing run.
I gave an informal talk about black holes, gravitational waves, and LIGO in the podcast "バイリンガルニュース".
I am pleased to tell you that recently I have got promoted as Assistant Research Professor in the LIGO group at Penn State.
We developed a Bayesian formalism for parameter inference of anisotropic stochastic gravitational wave background.
I was invited to APS April meeting to talk about "Observation of neutron stars during LIGO-Virgo-KAGRA's observing runs".
noteにてブログを始めました。
研究や、海外生活、過去の経験などを綴りたいと思います。
よければフォローをお願いします。
For the first time, LIGO and Virgo scientific collaboration discovered gravitational signals from two mergers of neutron-star black-hole binaries!!
I am Leo Tsukada, an Assistant Research Professor in Institute for Gravitation and the Cosmos at the Pennsylvania State University. Before I moved to Penn State first as a post-doc, I received my Ph.D in Physics from the University of Tokyo (RESCEU). I am also a member of LIGO Scientific Collaboration and my research interest is mainly on the data analysis of the gravitational waves.
In particular, I have been interested in two kinds of gravitational wave signals; the low-latency detection of the gravitational waves from compact binary coalescences and the stochastic gravitational-wave background. Please come to Research page for more details.
I work closely with a LIGO group led by Prof. Chad Hanna at Penn State. The group has contributed to operation and development of a gravitational-wave detection pipeline, GstLAL. Please find us here!
© 2022 Leo Tsukada - All Rights Reserved
Website Software