activity
20242026
collaborators

10 papers

astro-ph.GA2026

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…

astro-ph.GA2025

A wide-field, multi-line survey of CO in the Magellanic Clouds at parsec-scale resolution: characterising the molecular gas content with a 50-m single-dish submillimeter telescope

Francisca Kemper, Rosie Chen, Axel Weiss +8

The Large and Small Magellanic Clouds (LMC, SMC) are nearby dwarf galaxies whose proximity uniquely enables molecular cloud-scale resolution observations across the entire Magellan…

astro-ph.GA2025

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…

astro-ph.GA2025

Resolving the dusty star-forming galaxy GN20 at z=4.055 with NOEMA and JWST: A similar distribution of stars, gas and dust despite distinct apparent profiles

Leindert A. Boogaard, Fabian Walter, Axel Weiss +8

We present high-resolution (0.13"-0.23") NOEMA observations of the dust continuum emission at 1.1 mm (rest-frame 220 micron) and JWST/NIRCam and MIRI imaging of the z=4.055 starbur…

astro-ph.GA2025

Hot Diggity Dog: Simultaneous CO and Dust Modeling of the Most Luminous WISE Hot Dust-Obscured Galaxy Unveils Extreme Molecular Gas Excitation

Kevin C. Harrington, Román Fernández Aranda, Leindert Boogaard +7

Hot dust-obscured galaxies (Hot DOGs), the most infrared (IR) luminous objects selected by the WISE all-sky mid-IR survey, have yielded a sample of intrinsically luminous quasars (…

astro-ph.GA2025

Bright [CII]158m Streamers as a Beacon for Giant Galaxy Formation in SPT234956 at

Nikolaus Sulzenauer, Axel Weiß, Ryley Hill +17

Observations of extreme starbursts, often located in the cores of protoclusters, challenge the classical bottom-up galaxy formation paradigm. Giant elliptical galaxies at mus…