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Early and Late Life - Bulge-Dominated Galaxies over the Last 8-9 Gyr

Published online by Cambridge University Press:  17 August 2016

Inger Jørgensen ,
Kristin Chiboucas ,
Marcel Bergmann ,
Sune Toft  and
Ricardo Schiavon
Inger Jørgensen
Affiliation:
Gemini Observatory, Hilo, Hawaii, USA, e-mail: [email protected]
Kristin Chiboucas
Affiliation:
Gemini Observatory, Hilo, Hawaii, USA, e-mail: [email protected]
Marcel Bergmann
Affiliation:
Gemini Observatory, Hilo, Hawaii, USA, e-mail: [email protected]
Sune Toft
Affiliation:
DARK/NBI Copenhagen University, Denmark
Ricardo Schiavon
Affiliation:
Liverpool John Moores University, UK
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Abstract

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We present results from our investigation of galaxy evolution in dense cluster environments up to redshift z=1.3 based on high S/N ground-based spectroscopy and HST imaging of bulge-dominated galaxies: (1) An analysis of sizes, M/L ratios and line indices of galaxies in massive clusters out to z=1.3. The results are published in Jørgensen & Chiboucas (2013) and Jørgensen et al. (2014). (2) A preliminary analysis (Fig. 1) of absorption line indices, ages, metallicities and abundance ratios for galaxies in nine massive clusters out to z=0.9. New data cover three clusters at z=0.2-0.5.

Keywords

Galaxies: evolutiongalaxies: elliptical and lenticular
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S319: Galaxies at High Redshift and Their Evolution Over Cosmic Time , August 2015 , pp. 128
Copyright
Copyright © International Astronomical Union 2016 

References

Jørgensen, I. & Chiboucas, K. 2013, AJ, 145, 77 Google Scholar
Jørgensen, I., Chiboucas, K., Toft, S., Bergmann, K., Zirm, A., Schiavon, R. P., & Grützbauch, R. 2014, AJ, 148, 117 Google Scholar
Maraston, C. & Strömbäck, G. 2011 MNRAS, 418, 2785 Google Scholar
Thomas, D., Maraston, C., & Johansson, J. 2011 MNRAS, 412, 2183 Google Scholar