Details

Autor(en) / Beteiligte

• Nantais, Julie
• Wilson, Gillian
• Muzzin, Adam
• Old, Lyndsay J
• Demarco, Ricardo
• Cerulo, Pierluigi
• Balogh, Michael
• Rudnick, Gregory
• Chan, Jeffrey
• Cooper, M C
• Forrest, Ben
• Hayden, Brian
• Lidman, Chris
• Noble, Allison
• Perlmutter, Saul
• Rhea, Carter
• Surace, Jason
• van der Burg, Remco
• van Kampen, Eelco

Titel

The H α star formation main sequence in cluster and field galaxies at z ∼ 1.6

Ist Teil von

• Monthly notices of the Royal Astronomical Society, 2020-12, Vol.499 (3), p.3061-3070

Ort / Verlag

Oxford University Press

Erscheinungsjahr

2020

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• ABSTRACT We calculate H α-based star formation rates and determine the star formation rate–stellar mass relation for members of three Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS) clusters at z ∼ 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 ∼ 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.