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Orbits versus Star Formation Histories: A Progress Report

Published online by Cambridge University Press:  25 May 2016

Eva K. Grebel ,
Tsafrir Kolatt  and
Wolfgang Brandner
Eva K. Grebel
Affiliation:
UCO/Lick Obs., University of California, Santa Cruz, CA 95064, USA
Tsafrir Kolatt
Affiliation:
Physics Dept., University of California, Santa Cruz, CA 95064, USA
Wolfgang Brandner
Affiliation:
JPL/IPAC, Mail Code 100-22, Pasadena, CA 91125, USA

Abstract

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Milky Way dwarf companions and satellites of distant spirals seem to show a preference for polar orbits. We suggest that five out of six M31 dwarf spheroidal companions as well as two dwarf irregulars may also be located near a polar plane.

We briefly discuss preliminary results from a statistical approach to study correlations between star formation histories and orbits of Local Group dwarf galaxies, such as a possible correlation between star formation episodes and galaxy separations.

Type
Part 4. Morphology, Kinematics and Dynamics
Information
Symposium - International Astronomical Union , Volume 192: The Stellar Content of Local Group Galaxies , 1999 , pp. 447 - 450
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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