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High-redshift starbursts as progenitors of massive galaxies

Published online by Cambridge University Press:  29 March 2021

Carlos Gómez-Guijarro Open the ORCID record for Carlos Gómez-Guijarro [Opens in a new window]
Carlos Gómez-Guijarro*
Affiliation:
AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France email: carlos.gomezguijarro@cea.fr
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Abstract

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Starbursting dust-rich galaxies are capable of assembling large amounts of stellar mass very quickly. They have been proposed as progenitors of the population of compact massive quiescent galaxies at z ˜ 2. To test this connection, we present a detailed spatially-resolved study of the stars, dust, and stellar mass in a sample of six submillimeter-bright starburst galaxies at z ˜ 4.5. We found that the systems are undergoing minor mergers and the bulk star formation is located in extremely compact regions. On the other hand, optically-compact star forming galaxies have also been proposed as immediate progenitors of compact massive quiescent galaxies. Were they formed in slow secular processes or in rapid merger-driven starbursts? We explored the location of galaxies with respect to star-forming and structural relations and study the burstiness of star formation. Our results suggest that compact star-forming galaxies could be starbursts winding down and eventually becoming quiescent.

Keywords

galaxies: bulgesgalaxies: evolutiongalaxies: formationgalaxies: fundamental parametersgalaxies: high-redshiftgalaxies: interactionsgalaxies: ISMgalaxies: starburst
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 22 - 26
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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