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On the Formation of the Most Massive Stars in the Galaxy

  • Book
  • © 2012

Overview

Authors:
  1. Roberto J. Galván-Madrid

    1. Astrophysics, Harvard-Smithsonian Center, Cambridge, USA

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  • Presents results of Submillimeter Array (SMA) and Very Large Array (VLA) studies of massive-star formation regions in the early stages of ionization
  • Author has received the 2010 Doxey Prize, given out yearly by the American Astronomical Society
  • Includes supplementary material: sn.pub/extras

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (6 chapters)

  1. Front Matter

    Pages i-xiii
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  2. Introduction to the Scientific Problem

    • Roberto Galván-Madrid
    Pages 1-13

  3. A MSFR at the Onset of Ionization: W33A

    • Roberto Galván-Madrid
    Pages 15-38

  4. A MSFR with Young UC and HC HII Regions: G20.08N

    • Roberto Galván-Madrid
    Pages 39-72

  5. Time Variability of HII Regions: A Signature of Accretion?

    • Roberto Galván-Madrid
    Pages 73-79

  6. Time Variability of HII Regions in Numerical Simulations of MSFR

    • Roberto Galván-Madrid
    Pages 81-102

  7. Conclusions

    • Roberto Galván-Madrid
    Pages 103-103

  8. Back Matter

    Pages 105-122
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Keywords

About this book

The most massive stars in the galaxy - those with more than 15 to 20 solar masses - are lilkely to ionize their surroundings before they reach their final mass. How can they accrete in spite of the presence of over-pressurized gas?

This thesis presents results of Submillimeter Array (SMA) and Very Large Array (VLA) studies of massive star formation regions in the early stages of ionization, as well as an analysis of numerical simulations of the evolution of these young HII regions. The results favor a picture in which very massive stars form in accretion flows that are partially ionized and that keep accreting material from their environment.

Authors and Affiliations

  • Astrophysics, Harvard-Smithsonian Center, Cambridge, USA

    Roberto J. Galván-Madrid

About the author

Dr. Roberto Galván-Madrid was born in 1982 in Chetumal, Mexico, where he had his basic and high-school education. He obtained a bachelor degree in Physics from the Autonomous University of Nuevo Leon (UANL) in 2005, and a Masters degree in Astronomy from the National Autonomous University of Mexico (UNAM) in 2007.

The thesis published here is a compilation of the work presented by RGM in August 2011 to obtain his Ph.D. degree in Astronomy from UNAM, under the supervision of Prof. Luis F. Rodríguez. During most of his thesis work, RGM was based at the Harvard-Smithsonian Center for Astrophysics (CfA), working as a Pre-doctoral fellow of the Submillimeter Array Project (SMA) under the supervision of Dr. Qizhou Zhang and Dr. Paul T. P. Ho.

RGM's scientific interests are the processes of star formation, with emphasis on the formation of high-mass stars and clusters. Starting September 2011, RGM works as a postdoctoral fellow for the European Organization for Astronomical Research in the Southern Hemisphere (ESO).

Bibliographic Information

  • Book Title: On the Formation of the Most Massive Stars in the Galaxy

  • Authors: Roberto J. Galván-Madrid

  • Series Title: Springer Theses

  • DOI: https://doi.org/10.1007/978-1-4614-3308-8

  • Publisher: Springer New York, NY

  • eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)

  • Copyright Information: Springer Science+Business Media New York 2012

  • Softcover ISBN: 978-1-4614-3307-1Published: 12 June 2012

  • eBook ISBN: 978-1-4614-3308-8Published: 08 June 2012

  • Series ISSN: 2190-5053

  • Series E-ISSN: 2190-5061

  • Edition Number: 1

  • Number of Pages: XIII, 122

  • Number of Illustrations: 26 b/w illustrations, 23 illustrations in colour

  • Topics: Astronomy, Astrophysics and Cosmology

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