Leo Tsukada

Explore the Universe with Gravitational Waves



Credit : R. Hurt (Caltech-IPAC)

What's new?

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New paper!
2023/08/17

We extended the Bayesian searches for anisotropic stochastic gravitational-wave background to include non-GR polarizations.

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Journal publication
2023/08/03

The paper "Improved ranking statistics of the GstLAL inspiral search for compact binary coalescences" has been published in Physics Review D.

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New paper!
2023/07/25

We developed a rapid parameter estimation for GW signals from a compact binary, using the reduced-order-quadrature technique.

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Journal publication
2023/07/14

The paper "pygwb: A Python-based Library for Gravitational-wave Background Searches" has been published in The Astrophysical Journal.

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New blog post 🇯🇵
2023/07/03

ブログ記事を投稿しました。

Assistant Research Professorになりました

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New paper!
2023/05/29

We developed a tool to remove contamination due to GW signals leaking into the background model of GstLAL.

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New paper!
2023/05/10

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.

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New paper!
2023/05/09

We summarized the performance of the GstLAL search pipeline during a mock-data campaign as a preparation for the LVK's fourth observing run.

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New paper!
2023/04/28

We developed a formalism to unify the information about the signal probability of a GW event across multiple search pipelines.

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New paper!
2023/03/28

We developed a Python-based library for isotropic gravitational-wave background search, "pygwb".

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New blog post 🇯🇵
2023/02/01

ブログ記事を投稿しました。

宇宙飛行士選抜試験を振り返って

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Journal publication
2023/01/30

The paper "Bayesian formalism for parameter inference of anisotropic stochastic gravitational wave background" has been published in Physics Review D.

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New paper!
2022/11/30

We summarized the specification and new development of GstLAL's template bank toward the LVK's fourth observing run.

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Media coverage
2022/11/10

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".

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New blog post 🇯🇵
2022/10/09

ブログ記事を投稿しました。

アメリカ大学院全不合格体験記
(挫折編)・その2

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Got a new position!
2022/09/01

I am pleased to tell you that recently I have got promoted as Assistant Research Professor in the LIGO group at Penn State.

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New paper!
2022/08/30

We developed a Bayesian formalism for parameter inference of anisotropic stochastic gravitational wave background.

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New blog post 🇯🇵
2022/08/30

ブログ記事を投稿しました。

アメリカ大学院全不合格体験記
(挫折編)・その1

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New blog post 🇯🇵
2021/08/30

ブログ記事を投稿しました。

なぜ重力波を研究しようと思ったのか。(修行編)

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Gave an invited talk
2022/04/11

I was invited to APS April meeting to talk about "Observation of neutron stars during LIGO-Virgo-KAGRA's observing runs".

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New blog post 🇯🇵
2021/11/07

ブログ記事を投稿しました。

なぜ重力波を研究しようと思ったのか。(立志編)

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New blog post 🇯🇵
2021/10/03

ブログ記事を投稿しました。

大規模コラボレーションで研究してるとよくあること(後編)

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New blog post 🇯🇵
2021/08/14

新しい記事を投稿しました。

大規模コラボレーションで研究してるとよくあること (前編)

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Launched a blog! 🇯🇵
2021/07/25

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。

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We found NSBHs!
2021/07/01

For the first time, LIGO and Virgo scientific collaboration discovered gravitational signals from two mergers of neutron-star black-hole binaries!!

About Me

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!

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Contact

Email
leo.tsukada@ligo.org

Office
301A Whitmore Lab
The Pennsylvania State University,
University Park, PA, 16802

© 2022 Leo Tsukada - All Rights Reserved