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Search for Low-Amplitude Stellar Motions in NGC 7521

Published online by Cambridge University Press:  26 May 2016

Samuel C. Barden ,
Catherine A. Pilachowski ,
Constantine Deliyannis ,
Robert Mathieu ,
Soeren Meibom  and
Dianne Harmer
Samuel C. Barden
Affiliation:
Anglo-Australian Observatory, 167 Vimiera Road, Eastwood, NSW 2122, Australia
Catherine A. Pilachowski
Affiliation:
Indiana University, Astronomy Department, Swain West 319, 727 E. 3rd Street, Bloomington, IN 47401-7105, USA
Constantine Deliyannis
Affiliation:
Indiana University, Astronomy Department, Swain West 319, 727 E. 3rd Street, Bloomington, IN 47401-7105, USA
Robert Mathieu
Affiliation:
University of Wisconsin, Astronomy Department, 475 N. Charter St., Madison, WI 53706-1582, USA
Soeren Meibom
Affiliation:
University of Wisconsin, Astronomy Department, 475 N. Charter St., Madison, WI 53706-1582, USA
Dianne Harmer
Affiliation:
National Optical Astronomy Observatory, PO Box 26732, Tucson, AZ 85726-6732, USA

Abstract

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We report preliminary results of a radial velocity study of the old open cluster NGC 752 using an ensemble mean approach with Hydra multi-fiber spectroscopy on the 3.5-m WIYN telescope. The goal is to detect the higher amplitude extra-solar planetary systems and brown dwarf binaries that might reside in the cluster. The oscillation modes of mid-F stars at the redward edge of the instability strip can also be observed. The observation of NGC 752 is the first step in an ongoing study of a variety of clusters with different ages and metallicities.

Type
Part 7: Cool Stars and their Planets
Information
Symposium - International Astronomical Union , Volume 219: Stars as Suns : Activity, Evolution and Planets , 2004 , pp. 400 - 404
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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