5 papers
An extreme ram-pressure stripping event in a protocluster at redshift 4.3
Dazhi Zhou, Scott C. Chapman, Manuel Aravena +16
In the nearby Universe, the environment plays a crucial role in suppressing star formation in dense regions. In particular, ram-pressure stripping (RPS) is a major mechanism for re…
An Overabundance of Radio-AGN in the SPT2349-56 Protocluster: Preheating the Intra-Cluster Medium
Scott C. Chapman, Roger P. Deane, Dazhi Zhou +22
Following the detection of a radio-loud Active Galactic Nucleus (AGN) in the z=4.3 protocluster SPT2349-56, we have obtained additional observations with MeerKAT in S-band (2.4 GHz…
A large thermal energy reservoir in the nascent intracluster medium at a redshift of 4.3
Dazhi Zhou, Scott Chapman, Manuel Aravena +21
Most baryons in present-day galaxy clusters exist as hot gas (), forming the intracluster medium (ICM). Cosmological simulations predict th…
Evidence for environmental effects in the protocluster core SPT234956
Chayce Hughes, Ryley Hill, Scott Chapman +16
We present ALMA observations of the [CI] 492 and 806GHz fine-structure lines in 25 dusty star-forming galaxies (DSFGs) at in the core of the SPT234956 protoclu…
A Large Molecular Gas Reservoir in the Protocluster SPT234956 at
Dazhi Zhou, Scott C. Chapman, Nikolaus Sulzenauer +13
We present Atacama Compact Array (ACA) Band-3 observations of the protocluster SPT234956, an extreme system hosting submillimeter galaxies (SMGs) at $z\,{=}\,4.3…