Local Group Cosmology (Canary Islands Winter School of Astrophysics)

252 Pages·2013·22.42 MB·English

by  Martinez-Delgado D. (ed.)

LOCAL GROUP COSMOLOGY
Oneofthemostfascinatingunresolvedproblemsofmodernastrophysicsishowthegalax-
ies we observe today were formed. The Lambda–Cold Dark Matter paradigm predicts
that large spiral galaxies such as the Milky Way formed through accretion and tidal
disruptionofsatellitegalaxies,anotionpreviouslypostulatedonempiricalgroundsfrom
the character of stellar populations found in our Galaxy. The Local Group galaxies are
thebestlaboratoryinwhichtoinvestigatethesegalaxyformationprocessesbecausethey
can be studied with sufficiently high resolution to exhume fossils of galactic evolution
embeddedinthespatialdistribution,kinematics,andchemicalabundancesoftheiroldest
stars.
Based on the twentieth Canary Island Winter School of Astrophysics, this volume
provides a firm grounding for graduate students and early career researchers working
on Local Group cosmology. It presents modules from seven eminent and experienced
scientistsattheforefrontofLocalGroupresearch,andincludesoverviewsofobservational
techniques, diagnostic tools, and various theoretical models.
David Mart´ınez-Delgado is an astronomer at the Max-Planck Institute for Astronomy,
Heidelberg, Germany, and at the Instituto de Astrof´ısica de Canarias, Spain.

Canary Islands Winter School of Astrophysics
Volume XX
Series Editor
Francisco Sa´nchez, Instituto de Astrof´ısica de Canarias
Previous books in this series
I. SolarPhysics
II. PhysicalandObservationalCosmology
III. StarFormationinStellarSystems
IV. InfraredAstronomy
V. TheFormationofGalaxies
VI. TheStructureoftheSun
VII. InstrumentationforLargeTelescopes:ACourseforAstronomers
VIII. StellarAstrophysicsfortheLocalGroup:AFirstSteptotheUniverse
IX. AstrophysicswithLargeDatabasesintheInternetAge
X. GlobularClusters
XI. GalaxiesatHighRedshift
XII. AstrophysicalSpectropolarimetry
XIII. Cosmochemistry:TheMeltingPotofElements
XIV. DarkMatterandDarkEnergyintheUniverse
XV. PayloadandMissionDefinitioninSpaceSciences
XVI. ExtrasolarPlanets
XVII. 3DSpectroscopyinAstronomy
XVIII. TheEmission-LineUniverse
XIX. TheCosmicMicrowaveBackground:FromQuantumFluctuationstothePresentUniverse
Participants of the XX Canary Islands Winter School of Astrophysics
LOCAL GROUP COSMOLOGY
Edited by
´
DAVID MARTINEZ-DELGADO
Max-Planck-Institut fu¨r Astronomie, Heidelberg
32 Avenue of the Americas, New York, NY 10013-2473, USA
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(cid:2)c CambridgeUniversityPress2013
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and to the provisions of relevant collective licensing agreements,
no reproduction of any part may take place without the written
permission of Cambridge University Press.
First published 2013
Printed in the United States of America
A catalog record for this publication is available from the British Library.
Library of Congress Cataloging in Publication data
Canary Islands Winter School of Astrophysics (20th : 2008 : Tenerife, Canary Islands)
Local Group cosmology / [edited by] David Mart´ınez-Delgado, Max-Planck-Institut fu¨r
Astronomie, Heidelberg.
pages cm
Lectures presented at the XX Canary Islands Winter School of Astrophysics, held in Tenerife,
Spain, November 17–18, 2008.
Includes bibliographical references.
ISBN 978-1-107-02380-2 (hardback)
1. Local Group (Astronomy) – Congresses. I. Mart´ınez Delgado, D. (David), editor of
compilation. II. Title.
QB858.8.L63C36 2008
523.1(cid:3)12–dc23 2013012345
ISBN 978-1-107-02380-2 Hardback
Cambridge University Press has no responsibility for the persistence or accuracy of URLs for
external or third-party Internet Web sites referred to in this publication and does not
guarantee that any content on such Web sites is, or will remain, accurate or appropriate.
Contents
List of contributors page ix
List of participants xi
Preface xiii
Acknowledgments xv
Abbreviations xvii
1 The formation of the Milky Way in the CDM paradigm 1
K. C. Freeman
2 Dark matter content and tidal effects in Local Group dwarf galaxies 47
Steven R. Majewski
3 Notes on the missing satellites problem 95
James Bullock
4 The Milky Way satellite galaxies as critical tests of contemporary
cosmological theory 123
P. Kroupa
5 Stellar tidal streams 162
R. Ibata
6 Tutorial: The analysis of colour-magnitude diagrams 192
D. Valls-Gabaud
7 Tutorial: Modeling tidal streams using N-body simulations 226
J. Pen˜arrubia
vii