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Large-scale structure of the universecosmological simulations and machine learning /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Large-scale structure of the universeby Kana Moriwaki.
Reminder of title:	cosmological simulations and machine learning /
Author:	Moriwaki, Kana.
Published:	Singapore :Springer Nature Singapore :2022.
Description:	xii, 120 p. :ill., digital ;24 cm.
Notes:	"Doctoral Thesis accepted by The University of Tokyo, Tokyo, Japan."
Contained By:	Springer Nature eBook
Subject:	Large scale structure (Astronomy)Congresses.
Online resource:	https://doi.org/10.1007/978-981-19-5880-9
ISBN:	9789811958809$q(electronic bk.)

Large-scale structure of the universecosmological simulations and machine learning /
Moriwaki, Kana.

Large-scale structure of the universecosmological simulations and machine learning /[electronic resource] :by Kana Moriwaki. - Singapore :Springer Nature Singapore :2022. - xii, 120 p. :ill., digital ;24 cm. - Springer theses,2190-5061. - Springer theses..

"Doctoral Thesis accepted by The University of Tokyo, Tokyo, Japan."

Introduction -- Observations of the Large-Scale Structure of the Universe -- Modeling Emission Line Galaxies -- Signal Extraction from Noisy LIM Data -- Signal Separation from Confused LIM Data -- Signal Extraction from 3D LIM Data -- Application of LIM Data for Studying Cosmic Reionization -- Summary and Outlook -- Appendix.

Line intensity mapping (LIM) is an observational technique that probes the large-scale structure of the Universe by collecting light from a wide field of the sky. This book demonstrates a novel analysis method for LIM using machine learning (ML) technologies. The author develops a conditional generative adversarial network that separates designated emission signals from sources at different epochs. It thus provides, for the first time, an efficient way to extract signals from LIM data with foreground noise. The method is complementary to conventional statistical methods such as cross-correlation analysis. When applied to three-dimensional LIM data with wavelength information, high reproducibility is achieved under realistic conditions. The book further investigates how the trained machine extracts the signals, and discusses the limitation of the ML methods. Lastly an application of the LIM data to a study of cosmic reionization is presented. This book benefits students and researchers who are interested in using machine learning to multi-dimensional data not only in astronomy but also in general applications.

ISBN: 9789811958809$q(electronic bk.)

Standard No.: 10.1007/978-981-19-5880-9doiSubjects--Topical Terms:

442539
Large scale structure (Astronomy)
--Congresses.

LC Class. No.: QB991.L37

Dewey Class. No.: 523.1

Large-scale structure of the universecosmological simulations and machine learning /
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520 $a Line intensity mapping (LIM) is an observational technique that probes the large-scale structure of the Universe by collecting light from a wide field of the sky. This book demonstrates a novel analysis method for LIM using machine learning (ML) technologies. The author develops a conditional generative adversarial network that separates designated emission signals from sources at different epochs. It thus provides, for the first time, an efficient way to extract signals from LIM data with foreground noise. The method is complementary to conventional statistical methods such as cross-correlation analysis. When applied to three-dimensional LIM data with wavelength information, high reproducibility is achieved under realistic conditions. The book further investigates how the trained machine extracts the signals, and discusses the limitation of the ML methods. Lastly an application of the LIM data to a study of cosmic reionization is presented. This book benefits students and researchers who are interested in using machine learning to multi-dimensional data not only in astronomy but also in general applications.
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