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A Few Tens au Scale Physical and Chemical Structures Around Young Low-Mass Protostars - Yoko Oya

A Few Tens au Scale Physical and Chemical Structures Around Young Low-Mass Protostars

(Autor)

Buch | Softcover
212 Seiten
2023 | 1st ed. 2022
Springer Verlag, Singapore
978-981-19-1710-3 (ISBN)
CHF 239,65 inkl. MwSt
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This book characterizes the kinematic and chemical structures of disk-forming regions around low-mass protostellar sources and their interplay based on Atacama Large Millimeter/submillimeter Array (ALMA) observations. It describes the chemical evolution of molecules formed in an interstellar gas using the ALMA observations of 5 Sun-like protostars at a spatial resolution of a few tens au scale, which unveils the physical mechanism of star and planetary formation.


The book reviews the author’s successful works, focusing on two key findings: (i) A drastic change in the chemical composition of the gas around the centrifugal barrier of the infalling-rotating envelopes, and (ii) the chemical composition in the disk-forming regions, which varies from source to source depending on the chemical characteristics of the parent molecular cloud. These findings are based on the fine characterization of physical structures based on careful kinematic analyses. An additional attraction is theinclusion of the skillful reviews of ALMA observatory and its observation and physical models to describe the observed gas structure.

Yoko Oya is an Assistant Professor in the Department of Physics at the University of Tokyo. Her work focuses on the physics and chemistry of star and planet formation. She received her bachelor’s, master’s and Ph.D. from the University of Tokyo. She was awarded a Research Fellowship for Young Scientists (DC1) by the Japan Society for the Promotion of Science (JSPS) in 2015, and was supported by JSPS during her doctoral course. In 2018, she won the University of Tokyo President’s award and the School of Science Encouragement Award as an outstanding graduate student.

Introduction.- ALMA Observation.- Model Calculation.- L1527.- IRAS 15398–3359.- IRAS 16293–2422 Source A.- IRAS 16293–2422 Source B.- L483.- Chemical Differentiation.- Physical Diversity.- Conclusion.

Erscheinungsdatum
Reihe/Serie Springer Theses
Zusatzinfo 102 Illustrations, color; 5 Illustrations, black and white; XVI, 212 p. 107 illus., 102 illus. in color.
Verlagsort Singapore
Sprache englisch
Maße 155 x 235 mm
Themenwelt Naturwissenschaften Physik / Astronomie Astronomie / Astrophysik
Naturwissenschaften Physik / Astronomie Atom- / Kern- / Molekularphysik
Schlagworte ALMA (Atacama Large Millimeter/Submillimeter Array) • Astrochemistry in Star-Forming Region • Astrochemistry of Protoplanetary Disks • Centrifugal Barrier and Infalling-Rotating Envelope Model • Disk Formation Around Protostars • Low-Mass Stars, Star Formation, and Protostars • Star Formation and Protostars in Interstellar Medium • Structure of Protostellar Disks
ISBN-10 981-19-1710-8 / 9811917108
ISBN-13 978-981-19-1710-3 / 9789811917103
Zustand Neuware
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