The H\(\alpha\) star formation main sequence in cluster and field galaxies at \(z\sim1.6\)
We calculate H\(\alpha\)-based star formation rates and determine the star formation rate-stellar mass relation for members of three SpARCS clusters at \(z \sim 1.6\) and serendipitously identified field galaxies at similar redshifts to the clusters. We find similar star formation rates in cluster a...
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creator | Nantais, Julie Wilson, Gillian Muzzin, Adam Old, Lyndsay J Demarco, Ricardo Cerulo, Pierluigi Balogh, Michael Rudnick, Gregory Chan, Jeffrey Cooper, M C rest, Ben Hayden, Brian Lidman, Chris Noble, Allison Perlmutter, Saul Carter, Rhea Surace, Jason van der Burg, Remco Eelco van Kampen |
description | We calculate H\(\alpha\)-based star formation rates and determine the star formation rate-stellar mass relation for members of three SpARCS clusters at \(z \sim 1.6\) and serendipitously identified field galaxies at similar redshifts to the clusters. We find similar star formation rates in cluster and field galaxies throughout our range of stellar masses. The results are comparable to those seen in other clusters at similar redshifts, and consistent with our previous photometric evidence for little quenching activity in clusters. One possible explanation for our results is that galaxies in our \(z \sim 1.6\) clusters have been accreted too recently to show signs of environmental quenching. It is also possible that the clusters are not yet dynamically mature enough to produce important environmental quenching effects shown to be important at low redshift, such as ram pressure stripping or harassment. |
doi_str_mv | 10.48550/arxiv.2009.07861 |
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subjects | Galaxies Quenching Ram pressure Red shift Star & galaxy formation Star clusters Star formation rate Stellar mass |
title | The H\(\alpha\) star formation main sequence in cluster and field galaxies at \(z\sim1.6\) |
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