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Galaxy evolution studies in clusters: the case of Cl0024 + 1652 cluster galaxies at z ∼ 0.4

Published online by Cambridge University Press:  29 January 2021

Zeleke Beyoro-Amado ,
Mirjana Pović ,
Miguel Sánchez-Portal ,
Solomon Belay Tessema ,
Tilahun Getachew-Woreta  and
the GLACE team
Zeleke Beyoro-Amado
Affiliation:
Ethiopian Space Science and Technology Institute (ESSTI), Entoto Observatory and Research Centre (EORC), Astronomy and Astrophysics Research and Development Division, P.O.Box 33679, Addis Ababa, Ethiopia Addis Ababa University (AAU), P.O.Box 1176, Addis Ababa, Ethiopia Kotebe Metropolitan University, College of Natural and Computational Sciences, Department of Physics, P.O.Box 31248, Addis Ababa, Ethiopia
Mirjana Pović
Affiliation:
Ethiopian Space Science and Technology Institute (ESSTI), Entoto Observatory and Research Centre (EORC), Astronomy and Astrophysics Research and Development Division, P.O.Box 33679, Addis Ababa, Ethiopia Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008, Granada, Spain
Miguel Sánchez-Portal
Affiliation:
Instituto de Radioastronomía Milimétrica, Av. Divina Pastora 7, Núcleo Central, E-18012 Granada, Spain
Solomon Belay Tessema
Affiliation:
Ethiopian Space Science and Technology Institute (ESSTI), Entoto Observatory and Research Centre (EORC), Astronomy and Astrophysics Research and Development Division, P.O.Box 33679, Addis Ababa, Ethiopia
Tilahun Getachew-Woreta
Affiliation:
Ethiopian Space Science and Technology Institute (ESSTI), Entoto Observatory and Research Centre (EORC), Astronomy and Astrophysics Research and Development Division, P.O.Box 33679, Addis Ababa, Ethiopia Addis Ababa University (AAU), P.O.Box 1176, Addis Ababa, Ethiopia Bule Hora University, P.O.Box 144, Bule Hora, Ethiopia
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Abstract

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Studying the transformation of cluster galaxies contributes a lot to have a clear picture of evolution of the universe. Towards that we are studying different properties (morphology, star formation, AGN contribution and metallicity) of galaxies in clusters up to z ∼ 1.0 taking three different clusters: ZwCl0024 + 1652 at z ∼ 0.4, RXJ1257 + 4738 at z ∼ 0.9 and Virgo at z ∼ 0.0038. For ZwCl0024 + 1652 and RXJ1257 + 4738 clusters we used tunable filters data from GLACE survey taken with GTC 10.4 m telescope and other public data, while for Virgo we used public data. We did the morphological classification of 180 galaxies in ZwCl0024 + 1652 using galSVM, where 54 % and 46 % of galaxies were classified as early-type (ET) and late-type (LT) respectively. We did a comparison between the three clusters within the clustercentric distance of 1 Mpc and found that ET proportion (decreasing with redshift) dominates over the LT (increasing with redshift) throughout. We finalized the data reduction for ZwCl0024 + 1652 cluster and identified 46 [OIII] and 73 Hβ emission lines. For this cluster we have classified 22 emission line galaxies (ELGs) using BPT-NII diagnostic diagram resulting with 14 composite, 1 AGN and 7 star forming (SF) galaxies. We are using these results, together with the public data, for further analysis of the variations of properties in relation to redshift within z < 1.0.

Keywords

ZwCl0024 + 1652galaxy clusterearly typelate typeELGsAGNTunable Filter data
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S356: Nuclear Activity in Galaxies Across Cosmic Time , October 2019 , pp. 163 - 168
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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