Globular clusters with the extended horizontal-branch as remaining cores of galaxy building blocks

Young Wook Lee, Hansung B. Gim, Chul Chung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The relics of building blocks that made stellar halo and bulge are yet to be discovered unless they were completely disrupted throughout the history of the Galaxy. Here we suggest that about 25% of the Milky Way globular clusters have characteristics of the remaining cores of these early building blocks rather than genuine star clusters. They are clearly distinct from other normal globular clusters in the presence of extended horizontal-branch and multiple stellar populations, in mass (brightness), and most importantly in orbital kinematics. Based on this result, a three-stage formation picture of the Milky Way is suggested, which includes early mergers, collapse, and later accretion.

Original languageEnglish
Title of host publicationAstrophysics and Space Science Proceedings
EditorsMiguel Chavez Dagostino, Emanuele Bertone, Daniel Rosa Gonzalez, Lino Hector Rodriguez-Merino, Miguel Chavez Dagostino
PublisherSpringer Science and Business Media B.V.
Pages129-133
Number of pages5
Edition202439
ISBN (Electronic)9780387876214
ISBN (Print)9780387727677, 9780387876207, 9780387876207, 9781402055720, 9781402069321, 9781402088674, 9781402091896, 9781441981608, 9781441983688, 9783540758259, 9783642033230, 9783642103216, 9783642103513, 9783642113406, 9783642172502, 9789048133994, 9789048134984
DOIs
Publication statusPublished - 2009
EventInternational Conference on Ultraviolet Properties of Evolved Stellar Populations, 2007 - Puerto Vallarta, Mexico
Duration: 2007 Apr 162007 Apr 20

Publication series

NameAstrophysics and Space Science Proceedings
Number202439
Volume0
ISSN (Print)1570-6591
ISSN (Electronic)1570-6605

Other

OtherInternational Conference on Ultraviolet Properties of Evolved Stellar Populations, 2007
Country/TerritoryMexico
CityPuerto Vallarta
Period07/4/1607/4/20

Bibliographical note

Publisher Copyright:
© Springer Science+Business Media, LLC 2009.

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Computer Science Applications
  • Spectroscopy
  • Space and Planetary Science
  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Globular clusters with the extended horizontal-branch as remaining cores of galaxy building blocks'. Together they form a unique fingerprint.

Cite this