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X-Ray Binaries in Early Type Galaxies and the Globular Cluster Connection

Published online by Cambridge University Press:  22 February 2018

T. J. Maccarone ,
A Kundu ,
S. E. Zepf  and
T. H. Puzia
T. J. Maccarone
Affiliation:
Astronomical Institute “Anton Pannekoek”, University of Amsterdam, Amsterdam, The Netherlands
A Kundu
Affiliation:
Department of Physics and Astronomy, Michigan State University, East Lansing, MIUSA
S. E. Zepf
Affiliation:
Department of Physics and Astronomy, Michigan State University, East Lansing, MIUSA
T. H. Puzia
Affiliation:
Space Telescope Science Institute, Baltimore, MDUSA

Abstract

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We summarize the key observations made in recent observations of X-ray sources in early-type galaxies. Typically about half of the X-ray binaries in early-type galaxies are in globular clusters, they are preferentially found in metal rich globular clusters, and there is no indication that cluster-age is an important parameter. Theoretical challenges are presented by these results.

Resumen

Resumen

Presentamos un resumen de las observaciones claves de fuentes de rayos X realizadas recientemente en galaxias de tipos tempranos. Típicamente, alrededor de la mitad de las binarias de rayos X en galaxias de tipos tempranos se encuentra en cúmulos globulares, preferentemente en los que son ricos en metales, sin haber indicios de que la edad del cúmulo sea un parámetro importante. Estos resultados presentan desafíos teóricos.

Keywords

GalaxiesIndividual (NGC 3115, NGC 4365, NGC 4472) – GalaxiesStar Clusters — StarsMass Loss — X-RaysBinaries
Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 73 - 74
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

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